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# Abdullah Khalid
> Full-Stack TypeScript Developer
Results-driven Full-Stack TypeScript Developer specializing in building scalable SaaS, HealthTech, and FinTech platforms. Experienced in architecting microservices, designing real-time data pipelines, and developing secure, production-grade systems. Strong background in crypto arbitrage engines, WebSocket-based market data ingestion, and cloud-native infrastructure.
Location: Dhaka, Bangladesh
Email: khalid.code03@gmail.com
## Skills
- Node.js (Backend)
- Bun (Backend)
- Elysia.js (Backend)
- Fastify (Backend)
- NestJS (Backend)
- Express.js (Backend)
- Phoenix (Backend)
- REST APIs (Backend)
- WebSockets (Backend)
- PostgreSQL (Database & Data)
- MySQL (Database & Data)
- MariaDB (Database & Data)
- SQLite (Database & Data)
- MongoDB (Database & Data)
- Redis (Database & Data)
- Prisma (Database & Data)
- Drizzle (Database & Data)
- TypeORM (Database & Data)
- Mongoose (Database & Data)
- AWS (RDS, ElastiCache, S3, EC2) (DevOps & Cloud)
- Docker & Docker Compose (DevOps & Cloud)
- Linux Server Operations (DevOps & Cloud)
- CI/CD (DevOps & Cloud)
- Grafana (DevOps & Cloud)
- Vercel (DevOps & Cloud)
- Dokploy (DevOps & Cloud)
- System Design (Engineering)
- Clean Architecture (Engineering)
- Real-Time Systems (Engineering)
- Event-Driven Architecture (Engineering)
- Performance Optimization (Engineering)
- API Security (Engineering)
- Solana Web3.js / RPC (FinTech / Blockchain)
- Jupiter DEX (FinTech / Blockchain)
- Binance API (FinTech / Blockchain)
- KuCoin API (FinTech / Blockchain)
- Coinbase API (FinTech / Blockchain)
- dYdX (FinTech / Blockchain)
- Circle USDC / Arc (FinTech / Blockchain)
- Ethereum / EVM (FinTech / Blockchain)
- Solidity (FinTech / Blockchain)
- Foundry / Anvil (FinTech / Blockchain)
- React (Frontend)
- Next.js (Frontend)
- React Native (Frontend)
- SvelteKit (Frontend)
- TanStack Query (Frontend)
- TanStack Router (Frontend)
- Tailwind CSS (Frontend)
- TypeScript (Languages)
- JavaScript (Languages)
- PHP (Languages)
- Elixir (Languages)
## Experience
### Full-Stack TypeScript Developer — Interspeed
**2023-01-01 to Present** · Remote
Building complex HealthTech and FinTech systems across enterprise laboratory workflows, real-time market infrastructure, automated trading, and financial-system R&D.
Category: Full-Time
- Owned approximately 85% of an enterprise Laboratory Information Management System over 2.5 years, building clinical and anatomical workflows, dynamic forms, reporting, role-based access, backend APIs, and database models.
- Built TypeScript-based crypto trading infrastructure integrating centralized exchanges and Solana liquidity venues, including Binance, KuCoin, Coinbase, dYdX, and Jupiter.
- Developed automated trading workflows with market monitoring, configurable opportunity detection, fee-aware profitability checks, trade lifecycle persistence, and Redis-backed asynchronous execution processing.
- Built real-time market-data and trading interfaces using WebSockets, Redis, React, Next.js, and charting infrastructure.
- Worked on algorithmic trading R&D covering market-data ingestion, arbitrage research, execution validation, simulation workflows, and risk-aware trading architecture.
- Contributed targeted frontend and API modernization to an OpenEMR-based healthcare platform while preserving workflows within a large legacy PHP and MySQL codebase.
- Built and maintained production infrastructure using AWS, Docker, Linux, CI/CD, Grafana, and cloud-hosted database services.
Skills: TypeScript, React, Next.js, Bun, Elysia.js, Fastify, WebSockets, MySQL, MariaDB, Redis, AWS (RDS, ElastiCache, S3, EC2), Docker & Docker Compose, Linux Server Operations, CI/CD, Grafana, Solana Web3.js / RPC, Jupiter DEX, Binance API, KuCoin API, Coinbase API, dYdX
### Web Designer & Web Developer — Freelance / Contract
**2020-01-01 to 2023-01-01** · Remote
Worked across freelance development, team-based web design, and contract ecommerce projects, progressing from web design into frontend and full-stack development.
Category: Freelance / Contract
- Delivered 100+ website designs as part of a remote web design team after an initial Fiverr engagement developed into a longer-term collaboration.
- Worked with several clients through Fiverr and received 5-star reviews from both clients who left public feedback.
- Built responsive business websites and client-facing interfaces across a wide range of design requirements and industries.
- Worked on contract ecommerce projects, building storefront, product, dashboard, and business workflow features.
- Progressed from web design into frontend and full-stack development using JavaScript, React, Next.js, Node.js, and related web technologies.
- Handled client requirements, revisions, integrations, deployment, maintenance, and production troubleshooting across freelance and contract work.
Skills: JavaScript, React, Next.js, Node.js
## Education
## Projects
### Algorithmic Crypto Trading Platform
R&D platform for algorithmic crypto trading infrastructure, real-time market intelligence, arbitrage research, strategy validation, and automated execution architecture.
Role: Built core market-data infrastructure, arbitrage research workflows, strategy validation systems, and execution architecture.
Impact: Created an experimentation platform for evaluating trading strategies and execution workflows using real-time data, simulation, and cost-aware opportunity validation.
Category: FinTech / Blockchain
Skills: TypeScript, React, TanStack Query, Bun, Elysia.js, WebSockets, PostgreSQL, Redis, Prisma, Ethereum / EVM, Solidity, Foundry / Anvil
Tags: FinTech, Algorithmic Trading, Market Intelligence
### PayBridge
Institutional cross-border settlement orchestration platform exploring how regulated payment providers can use stablecoin infrastructure for treasury settlement, liquidity management, payout coordination, and reconciliation.
Role: Designed and built settlement workflows spanning customer payments, internal ledger obligations, treasury operations, USDC settlement, destination liquidity, payout tracking, and reconciliation.
Impact: Explores how stablecoin infrastructure can improve institutional cross-border settlement while keeping blockchain complexity invisible to end customers.
Category: FinTech / Blockchain
Skills: TypeScript, Circle USDC / Arc
Tags: FinTech, Payments, USDC, Stablecoins, Treasury, Reconciliation
### Laboratory Information Management System (LIMS)
Enterprise LIMS for hospitals and diagnostic centers, supporting clinical and anatomical laboratory workflows with strict access control and automation.
Role: Primary full-stack developer, owning and building approximately 85% of the system over 2.5 years.
Impact: Built a feature-rich enterprise healthcare platform covering complex laboratory workflows before development paused after funding ended.
Category: HealthTech
Skills: TypeScript, Next.js, Fastify, MariaDB
Tags: HealthTech, Enterprise SaaS
### Ecommerce Applications
Production ecommerce applications built for client and business-owned retail workflows, including systems used to generate real sales.
Role: Built full-stack storefront, product, order, dashboard, payment, and integration workflows.
Impact: Delivered commerce systems used for real customer purchases and business operations.
Category: Ecommerce
Skills: TypeScript, Next.js
Tags: Payments, Ecommerce, Dashboard
### Multi-Exchange Solana Trading Platform
Automated crypto trading platform for monitoring and executing Solana trading workflows across centralized and decentralized exchanges.
Role: Built full-stack trading infrastructure covering exchange integrations, automated execution workflows, real-time market monitoring, portfolio balances, and operational interfaces.
Impact: Unified multiple exchange and liquidity integrations behind a TypeScript trading system capable of monitoring opportunities and coordinating automated buy/sell workflows.
Category: FinTech / Blockchain
Skills: TypeScript, React, Next.js, Bun, Elysia.js, WebSockets, PostgreSQL, Redis, Prisma, Solana Web3.js / RPC, Jupiter DEX, Binance API, KuCoin API, Coinbase API, dYdX
Tags: FinTech
### Electronic Medical Record (EMR)
Customization and modernization work on a fork of OpenEMR, improving selected clinician and patient workflows with new UI and APIs.
Role: Contributed smaller focused improvements compared with the LIMS ownership.
Impact: Improved selected workflows in a mature healthcare codebase while learning legacy modernization constraints.
Category: HealthTech
Skills: TypeScript, PHP, React, REST APIs, MySQL
Tags: Open Source
### Job Posting Platforms
Production job posting applications built for real business recruitment workflows, including public listings, administration, and deployment.
Role: Built full-stack job board features, dashboards, and deployment flows.
Impact: Delivered commercially used applications with complete frontend, backend, administrative, and deployment workflows.
Category: SaaS / Platforms
Skills: TypeScript, Next.js
Tags: JobTech, Production, Full Stack
## Links
## Resume variants
### Full-Stack TypeScript Engineer Resume — Full-Stack TypeScript Engineer
```json
{
"basics": {
"name": "Abdullah Khalid",
"email": "khalid.code03@gmail.com",
"links": [
{
"url": "https://github.com/khalids01",
"name": "GitHub"
},
{
"url": "https://linkedin.com/in/khalid87",
"name": "LinkedIn"
}
],
"title": "Full-Stack TypeScript Engineer",
"location": "Dhaka, Bangladesh (Remote)"
},
"skills": [
{
"group": "Core",
"items": [
"TypeScript",
"JavaScript",
"System Design",
"Clean Architecture"
]
},
{
"group": "Applications",
"items": [
"React",
"Next.js",
"Node.js",
"Bun",
"Fastify",
"NestJS",
"Elysia.js"
]
},
{
"group": "Data & Realtime",
"items": [
"PostgreSQL",
"MariaDB",
"Redis",
"Prisma",
"WebSockets"
]
},
{
"group": "Delivery",
"items": [
"AWS",
"Docker",
"CI/CD",
"Linux",
"Grafana"
]
}
],
"summary": "Engineer with 6+ years of experience delivering production web systems and complex product workflows for remote teams and clients. Strong across TypeScript, React, Next.js, Node.js, Bun, relational data, real-time systems, cloud delivery, and domain-heavy HealthTech, FinTech, SaaS, and ecommerce applications.",
"projects": [
{
"desc": "Private enterprise HealthTech platform for hospitals and diagnostic laboratories.",
"name": "Laboratory Information Management System (LIMS)",
"links": [],
"bullets": [
"Owned and delivered approximately 85% of the system over 2.5 years using Next.js, Fastify, TypeScript, and MariaDB.",
"Implemented patient and sample workflows, clinical and anatomical laboratory processes, role-based access, dynamic forms, reporting, and operational automation."
]
},
{
"desc": "R&D platform for real-time market intelligence, arbitrage research, strategy validation, and automated execution architecture.",
"name": "Algorithmic Crypto Trading Platform",
"links": [],
"bullets": [
"Built real-time market-data ingestion and Redis-backed processing across centralized exchanges and Solana liquidity venues.",
"Implemented cross-exchange opportunity detection, fee-aware profitability calculations, slippage and liquidity checks, simulation workflows, and trade lifecycle tracking."
]
},
{
"desc": "Automated trading system coordinating centralized and decentralized exchange integrations.",
"name": "Multi-Exchange Solana Trading Platform",
"links": [],
"bullets": [
"Built Bun, Elysia.js, Next.js, PostgreSQL, Prisma, Redis, and WebSocket workflows for market monitoring, balances, automated execution, and operational dashboards.",
"Integrated Binance, KuCoin, Coinbase, dYdX, and Jupiter/Solana workflows with configurable thresholds and persistent trade state."
]
}
],
"education": [
{
"degree": "Diploma in Computer Science & Engineering",
"institution": "Tangail Polytechnic Institute"
}
],
"languages": [
{
"name": "English",
"level": "Professional Working Proficiency"
},
{
"name": "Bangla",
"level": "Native"
}
],
"experience": [
{
"end": "Present",
"role": "Full-Stack TypeScript Developer",
"start": "Jun 2023",
"bullets": [
"Owned approximately 85% of an enterprise Laboratory Information Management System over 2.5 years, translating clinical and anatomical laboratory workflows into Next.js interfaces, Fastify APIs, MariaDB models, dynamic forms, reporting, and role-based access control.",
"Built TypeScript crypto market infrastructure with Bun, Elysia.js, Redis, and WebSockets across centralized exchanges and Solana liquidity venues.",
"Developed market monitoring, opportunity detection, fee-aware profitability checks, trade lifecycle persistence, and asynchronous execution workflows.",
"Contributed targeted frontend and REST API modernization to an OpenEMR fork while preserving workflows in a mature PHP and MySQL codebase.",
"Built and maintained production infrastructure with AWS, Docker, Linux, CI/CD, Grafana, and cloud-hosted databases."
],
"company": "Interspeed"
},
{
"end": "Feb 2023",
"role": "Web Designer & Web Developer",
"start": "2020",
"bullets": [
"Delivered 100+ website designs as part of a remote web-design team after an initial Fiverr engagement became longer-term direct work.",
"Worked with several Fiverr and direct clients; both clients who left public reviews gave 5-star ratings.",
"Built responsive business websites and interfaces, then progressed into frontend and full-stack work with JavaScript, React, Next.js, and Node.js.",
"Completed contract ecommerce work spanning storefronts, products, orders, dashboards, integrations, revisions, deployment, and maintenance."
],
"company": "Freelance / Contract"
}
]
}
```
### Software Engineer Resume — Software Engineer
```json
{
"basics": {
"name": "Abdullah Khalid",
"email": "khalid.code03@gmail.com",
"links": [
{
"url": "https://github.com/khalids01",
"name": "GitHub"
},
{
"url": "https://linkedin.com/in/khalid87",
"name": "LinkedIn"
}
],
"title": "Software Engineer",
"location": "Dhaka, Bangladesh (Remote)"
},
"skills": [
{
"group": "Core",
"items": [
"TypeScript",
"JavaScript",
"System Design",
"Clean Architecture"
]
},
{
"group": "Applications",
"items": [
"React",
"Next.js",
"Node.js",
"Bun",
"Fastify",
"NestJS",
"Elysia.js"
]
},
{
"group": "Data & Realtime",
"items": [
"PostgreSQL",
"MariaDB",
"Redis",
"Prisma",
"WebSockets"
]
},
{
"group": "Delivery",
"items": [
"AWS",
"Docker",
"CI/CD",
"Linux",
"Grafana"
]
}
],
"summary": "Engineer with 6+ years of experience delivering production web systems and complex product workflows for remote teams and clients. Works comfortably across product interfaces, backend services, data modeling, real-time systems, infrastructure, and domain-heavy applications where correctness and maintainability matter.",
"projects": [
{
"desc": "Private enterprise HealthTech platform for hospitals and diagnostic laboratories.",
"name": "Laboratory Information Management System (LIMS)",
"links": [],
"bullets": [
"Owned and delivered approximately 85% of the system over 2.5 years using Next.js, Fastify, TypeScript, and MariaDB.",
"Implemented patient and sample workflows, clinical and anatomical laboratory processes, role-based access, dynamic forms, reporting, and operational automation."
]
},
{
"desc": "R&D platform for real-time market intelligence, arbitrage research, strategy validation, and automated execution architecture.",
"name": "Algorithmic Crypto Trading Platform",
"links": [],
"bullets": [
"Built real-time market-data ingestion and Redis-backed processing across centralized exchanges and Solana liquidity venues.",
"Implemented cross-exchange opportunity detection, fee-aware profitability calculations, slippage and liquidity checks, simulation workflows, and trade lifecycle tracking."
]
},
{
"desc": "R&D platform for institutional cross-border settlement orchestration using stablecoin infrastructure.",
"name": "PayBridge",
"links": [],
"bullets": [
"Designed settlement, treasury, liquidity, payout, reconciliation, audit, and exception-management workflows in TypeScript.",
"Implemented a testnet settlement experience with Circle and Arc while keeping simulated fiat activity separate from blockchain activity."
]
}
],
"education": [
{
"degree": "Diploma in Computer Science & Engineering",
"institution": "Tangail Polytechnic Institute"
}
],
"languages": [
{
"name": "English",
"level": "Professional Working Proficiency"
},
{
"name": "Bangla",
"level": "Native"
}
],
"experience": [
{
"end": "Present",
"role": "Full-Stack TypeScript Developer",
"start": "Jun 2023",
"bullets": [
"Owned approximately 85% of an enterprise Laboratory Information Management System over 2.5 years, translating clinical and anatomical laboratory workflows into Next.js interfaces, Fastify APIs, MariaDB models, dynamic forms, reporting, and role-based access control.",
"Built TypeScript crypto market infrastructure with Bun, Elysia.js, Redis, and WebSockets across centralized exchanges and Solana liquidity venues.",
"Developed market monitoring, opportunity detection, fee-aware profitability checks, trade lifecycle persistence, and asynchronous execution workflows.",
"Contributed targeted frontend and REST API modernization to an OpenEMR fork while preserving workflows in a mature PHP and MySQL codebase.",
"Built and maintained production infrastructure with AWS, Docker, Linux, CI/CD, Grafana, and cloud-hosted databases."
],
"company": "Interspeed"
},
{
"end": "Feb 2023",
"role": "Web Designer & Web Developer",
"start": "2020",
"bullets": [
"Delivered 100+ website designs as part of a remote web-design team after an initial Fiverr engagement became longer-term direct work.",
"Worked with several Fiverr and direct clients; both clients who left public reviews gave 5-star ratings.",
"Built responsive business websites and interfaces, then progressed into frontend and full-stack work with JavaScript, React, Next.js, and Node.js.",
"Completed contract ecommerce work spanning storefronts, products, orders, dashboards, integrations, revisions, deployment, and maintenance."
],
"company": "Freelance / Contract"
}
]
}
```
### Full-Stack JavaScript Engineer Resume — Full-Stack JavaScript Engineer
```json
{
"basics": {
"name": "Abdullah Khalid",
"email": "khalid.code03@gmail.com",
"links": [
{
"url": "https://github.com/khalids01",
"name": "GitHub"
},
{
"url": "https://linkedin.com/in/khalid87",
"name": "LinkedIn"
}
],
"title": "Full-Stack JavaScript Engineer",
"location": "Dhaka, Bangladesh (Remote)"
},
"skills": [
{
"group": "Languages",
"items": [
"TypeScript",
"JavaScript",
"PHP"
]
},
{
"group": "Frontend",
"items": [
"React",
"Next.js",
"React Native",
"SvelteKit",
"Tailwind CSS"
]
},
{
"group": "Backend",
"items": [
"Node.js",
"Bun",
"Fastify",
"NestJS",
"Elysia.js",
"REST APIs"
]
},
{
"group": "Data",
"items": [
"PostgreSQL",
"MariaDB",
"MongoDB",
"Redis",
"Prisma",
"WebSockets"
]
},
{
"group": "Cloud & Delivery",
"items": [
"AWS",
"Docker",
"CI/CD",
"Linux",
"Vercel",
"Grafana"
]
}
],
"summary": "Engineer with 6+ years of experience delivering production web systems and complex product workflows for remote teams and clients. Delivers complete JavaScript web products across responsive UI, APIs, databases, integrations, ecommerce, job platforms, deployment, and production support.",
"projects": [
{
"desc": "Production job-posting applications supporting public listings, administration, and business recruitment workflows.",
"name": "Job Posting Platforms",
"links": [],
"bullets": [
"Built public job discovery, listing management, administration dashboards, database-backed workflows, and production deployment flows.",
"Delivered complete features across responsive Next.js interfaces and backend services."
]
},
{
"desc": "Production commerce systems for client and business-owned retail workflows.",
"name": "Ecommerce Applications",
"links": [],
"bullets": [
"Built storefront, product, order, dashboard, payment, and third-party integration workflows used for real customer purchases.",
"Handled responsive interfaces, business requirements, revisions, deployment, and ongoing maintenance."
]
},
{
"desc": "Private enterprise HealthTech platform for hospitals and diagnostic laboratories.",
"name": "Laboratory Information Management System (LIMS)",
"links": [],
"bullets": [
"Owned and delivered approximately 85% of the system over 2.5 years using Next.js, Fastify, TypeScript, and MariaDB.",
"Implemented patient and sample workflows, clinical and anatomical laboratory processes, role-based access, dynamic forms, reporting, and operational automation."
]
}
],
"education": [
{
"degree": "Diploma in Computer Science & Engineering",
"institution": "Tangail Polytechnic Institute"
}
],
"languages": [
{
"name": "English",
"level": "Professional Working Proficiency"
},
{
"name": "Bangla",
"level": "Native"
}
],
"experience": [
{
"end": "Present",
"role": "Full-Stack TypeScript Developer",
"start": "Jun 2023",
"bullets": [
"Owned approximately 85% of an enterprise Laboratory Information Management System over 2.5 years, translating clinical and anatomical laboratory workflows into Next.js interfaces, Fastify APIs, MariaDB models, dynamic forms, reporting, and role-based access control.",
"Built TypeScript crypto market infrastructure with Bun, Elysia.js, Redis, and WebSockets across centralized exchanges and Solana liquidity venues.",
"Developed market monitoring, opportunity detection, fee-aware profitability checks, trade lifecycle persistence, and asynchronous execution workflows.",
"Contributed targeted frontend and REST API modernization to an OpenEMR fork while preserving workflows in a mature PHP and MySQL codebase.",
"Built and maintained production infrastructure with AWS, Docker, Linux, CI/CD, Grafana, and cloud-hosted databases."
],
"company": "Interspeed"
},
{
"end": "Feb 2023",
"role": "Web Designer & Web Developer",
"start": "2020",
"bullets": [
"Delivered 100+ website designs as part of a remote web-design team after an initial Fiverr engagement became longer-term direct work.",
"Worked with several Fiverr and direct clients; both clients who left public reviews gave 5-star ratings.",
"Built responsive business websites and interfaces, then progressed into frontend and full-stack work with JavaScript, React, Next.js, and Node.js.",
"Completed contract ecommerce work spanning storefronts, products, orders, dashboards, integrations, revisions, deployment, and maintenance."
],
"company": "Freelance / Contract"
}
]
}
```
### Backend TypeScript Engineer Resume — Backend TypeScript Engineer
```json
{
"basics": {
"name": "Abdullah Khalid",
"email": "khalid.code03@gmail.com",
"links": [
{
"url": "https://github.com/khalids01",
"name": "GitHub"
},
{
"url": "https://linkedin.com/in/khalid87",
"name": "LinkedIn"
}
],
"title": "Backend TypeScript Engineer",
"location": "Dhaka, Bangladesh (Remote)"
},
"skills": [
{
"group": "Backend",
"items": [
"TypeScript",
"Node.js",
"Bun",
"Fastify",
"NestJS",
"Elysia.js",
"Express.js"
]
},
{
"group": "APIs & Realtime",
"items": [
"REST APIs",
"WebSockets",
"Redis Pub/Sub",
"API Security",
"Third-Party Integrations"
]
},
{
"group": "Data",
"items": [
"PostgreSQL",
"MariaDB",
"MongoDB",
"Redis",
"Prisma"
]
},
{
"group": "Cloud & Operations",
"items": [
"AWS",
"Docker",
"Linux",
"CI/CD",
"Grafana"
]
}
],
"summary": "Engineer with 6+ years of experience delivering production web systems and complex product workflows for remote teams and clients. Designs typed APIs, data models, event-driven processing, and execution-aware services with Bun, Elysia.js, Fastify, Redis, WebSockets, PostgreSQL, and MariaDB.",
"projects": [
{
"desc": "R&D platform for real-time market intelligence, arbitrage research, strategy validation, and automated execution architecture.",
"name": "Algorithmic Crypto Trading Platform",
"links": [],
"bullets": [
"Built real-time market-data ingestion and Redis-backed processing across centralized exchanges and Solana liquidity venues.",
"Implemented cross-exchange opportunity detection, fee-aware profitability calculations, slippage and liquidity checks, simulation workflows, and trade lifecycle tracking."
]
},
{
"desc": "Automated trading system coordinating centralized and decentralized exchange integrations.",
"name": "Multi-Exchange Solana Trading Platform",
"links": [],
"bullets": [
"Built Bun, Elysia.js, Next.js, PostgreSQL, Prisma, Redis, and WebSocket workflows for market monitoring, balances, automated execution, and operational dashboards.",
"Integrated Binance, KuCoin, Coinbase, dYdX, and Jupiter/Solana workflows with configurable thresholds and persistent trade state."
]
},
{
"desc": "R&D platform for institutional cross-border settlement orchestration using stablecoin infrastructure.",
"name": "PayBridge",
"links": [],
"bullets": [
"Designed settlement, treasury, liquidity, payout, reconciliation, audit, and exception-management workflows in TypeScript.",
"Implemented a testnet settlement experience with Circle and Arc while keeping simulated fiat activity separate from blockchain activity."
]
}
],
"education": [
{
"degree": "Diploma in Computer Science & Engineering",
"institution": "Tangail Polytechnic Institute"
}
],
"languages": [
{
"name": "English",
"level": "Professional Working Proficiency"
},
{
"name": "Bangla",
"level": "Native"
}
],
"experience": [
{
"end": "Present",
"role": "Full-Stack TypeScript Developer",
"start": "Jun 2023",
"bullets": [
"Engineered TypeScript backend services with Bun, Elysia.js, and Fastify for healthcare workflows and real-time crypto market-intelligence R&D.",
"Built Redis-backed WebSocket pipelines for live market data across Binance, KuCoin, Coinbase, dYdX, and Solana liquidity venues.",
"Implemented opportunity detection, fee-aware profitability checks, configurable thresholds, trade lifecycle persistence, and asynchronous execution processing.",
"Designed APIs, MariaDB data models, permission rules, and workflow services while owning approximately 85% of an enterprise LIMS over 2.5 years.",
"Built production infrastructure with AWS, Docker, Linux, CI/CD, Grafana, and cloud-hosted database services."
],
"company": "Interspeed"
},
{
"end": "Feb 2023",
"role": "Web Designer & Web Developer",
"start": "2020",
"bullets": [
"Progressed from web design into frontend and full-stack development through Fiverr, direct client, and contract work.",
"Built responsive websites, ecommerce services, CMS dashboards, and business workflows with JavaScript, React, Next.js, and Node.js.",
"Handled client requirements, revisions, integrations, deployments, maintenance, and production troubleshooting."
],
"company": "Freelance / Contract"
}
]
}
```
### Senior Frontend Engineer / React & Next.js Resume — Senior Frontend Engineer / React & Next.js
```json
{
"basics": {
"name": "Abdullah Khalid",
"email": "khalid.code03@gmail.com",
"links": [
{
"url": "https://github.com/khalids01",
"name": "GitHub"
},
{
"url": "https://linkedin.com/in/khalid87",
"name": "LinkedIn"
}
],
"title": "Senior Frontend Engineer / React & Next.js",
"location": "Dhaka, Bangladesh (Remote)"
},
"skills": [
{
"group": "Core Frontend",
"items": [
"TypeScript",
"React",
"Next.js",
"JavaScript",
"Tailwind CSS"
]
},
{
"group": "Application UI",
"items": [
"Responsive UI",
"Dashboards",
"Dynamic Forms",
"State Management",
"Performance Optimization"
]
},
{
"group": "Cross-Platform",
"items": [
"React Native",
"SvelteKit"
]
},
{
"group": "Integration",
"items": [
"REST APIs",
"WebSockets",
"Node.js",
"Prisma",
"PostgreSQL"
]
},
{
"group": "Delivery",
"items": [
"Vercel",
"AWS",
"CI/CD",
"Production Debugging"
]
}
],
"summary": "Engineer with 6+ years of experience delivering production web systems and complex product workflows for remote teams and clients. Frontend-leaning engineer specializing in React and Next.js interfaces for clinical workflows, dashboards, dynamic forms, reporting, role-aware applications, and real-time data views.",
"projects": [
{
"desc": "Private enterprise HealthTech platform for hospitals and diagnostic laboratories.",
"name": "Laboratory Information Management System (LIMS)",
"links": [],
"bullets": [
"Owned and delivered approximately 85% of the system over 2.5 years using Next.js, Fastify, TypeScript, and MariaDB.",
"Implemented patient and sample workflows, clinical and anatomical laboratory processes, role-based access, dynamic forms, reporting, and operational automation."
]
},
{
"desc": "Production job-posting applications supporting public listings, administration, and business recruitment workflows.",
"name": "Job Posting Platforms",
"links": [],
"bullets": [
"Built public job discovery, listing management, administration dashboards, database-backed workflows, and production deployment flows.",
"Delivered complete features across responsive Next.js interfaces and backend services."
]
},
{
"desc": "Targeted modernization of clinician and patient workflows in a mature OpenEMR fork.",
"name": "OpenEMR Workflow Modernization",
"links": [],
"bullets": [
"Improved selected React interfaces and REST API integrations within a large PHP and MySQL codebase.",
"Preserved established EMR behavior while incrementally improving usability and maintainability."
]
}
],
"education": [
{
"degree": "Diploma in Computer Science & Engineering",
"institution": "Tangail Polytechnic Institute"
}
],
"languages": [
{
"name": "English",
"level": "Professional Working Proficiency"
},
{
"name": "Bangla",
"level": "Native"
}
],
"experience": [
{
"end": "Present",
"role": "Full-Stack TypeScript Developer",
"start": "Jun 2023",
"bullets": [
"Owned approximately 85% of an enterprise LIMS over 2.5 years, building multi-role Next.js interfaces for patient, sample, clinical, anatomical, dynamic-form, and reporting workflows.",
"Connected responsive application flows to Fastify APIs, MariaDB models, permission rules, and backend business logic.",
"Built real-time market dashboards and data views with React, Next.js, TypeScript, WebSockets, and charting infrastructure.",
"Modernized selected clinician and patient workflows in an OpenEMR fork while preserving behavior in a mature legacy codebase."
],
"company": "Interspeed"
},
{
"end": "Feb 2023",
"role": "Web Designer & Web Developer",
"start": "2020",
"bullets": [
"Delivered 100+ website designs as part of a remote web-design team and worked with several Fiverr and direct clients.",
"Built responsive business websites, storefronts, dashboards, CMS interfaces, and job-platform features with JavaScript, React, and Next.js.",
"Handled requirements, revisions, API integration, deployment, maintenance, and production troubleshooting across freelance and contract work."
],
"company": "Freelance / Contract"
}
]
}
```
### Senior Full-Stack TypeScript Engineer Resume — Senior Full-Stack TypeScript Engineer
```json
{
"basics": {
"name": "Abdullah Khalid",
"email": "khalid.code03@gmail.com",
"links": [
{
"url": "https://github.com/khalids01",
"name": "GitHub"
},
{
"url": "https://linkedin.com/in/khalid87",
"name": "LinkedIn"
}
],
"title": "Senior Full-Stack TypeScript Engineer",
"location": "Dhaka, Bangladesh (Remote)"
},
"skills": [
{
"group": "Core",
"items": [
"TypeScript",
"JavaScript",
"System Design",
"Clean Architecture"
]
},
{
"group": "Applications",
"items": [
"React",
"Next.js",
"Node.js",
"Bun",
"Fastify",
"NestJS",
"Elysia.js"
]
},
{
"group": "Data & Realtime",
"items": [
"PostgreSQL",
"MariaDB",
"Redis",
"Prisma",
"WebSockets"
]
},
{
"group": "Delivery",
"items": [
"AWS",
"Docker",
"CI/CD",
"Linux",
"Grafana"
]
}
],
"summary": "Engineer with 6+ years of experience delivering production web systems and complex product workflows for remote teams and clients. Has primary ownership of an enterprise LIMS and hands-on responsibility across product architecture, APIs, data modeling, real-time trading infrastructure, deployment, and technical delivery.",
"projects": [
{
"desc": "Private enterprise HealthTech platform for hospitals and diagnostic laboratories.",
"name": "Laboratory Information Management System (LIMS)",
"links": [],
"bullets": [
"Owned and delivered approximately 85% of the system over 2.5 years using Next.js, Fastify, TypeScript, and MariaDB.",
"Implemented patient and sample workflows, clinical and anatomical laboratory processes, role-based access, dynamic forms, reporting, and operational automation."
]
},
{
"desc": "Automated trading system coordinating centralized and decentralized exchange integrations.",
"name": "Multi-Exchange Solana Trading Platform",
"links": [],
"bullets": [
"Built Bun, Elysia.js, Next.js, PostgreSQL, Prisma, Redis, and WebSocket workflows for market monitoring, balances, automated execution, and operational dashboards.",
"Integrated Binance, KuCoin, Coinbase, dYdX, and Jupiter/Solana workflows with configurable thresholds and persistent trade state."
]
},
{
"desc": "R&D platform for institutional cross-border settlement orchestration using stablecoin infrastructure.",
"name": "PayBridge",
"links": [],
"bullets": [
"Designed settlement, treasury, liquidity, payout, reconciliation, audit, and exception-management workflows in TypeScript.",
"Implemented a testnet settlement experience with Circle and Arc while keeping simulated fiat activity separate from blockchain activity."
]
}
],
"education": [
{
"degree": "Diploma in Computer Science & Engineering",
"institution": "Tangail Polytechnic Institute"
}
],
"languages": [
{
"name": "English",
"level": "Professional Working Proficiency"
},
{
"name": "Bangla",
"level": "Native"
}
],
"experience": [
{
"end": "Present",
"role": "Full-Stack TypeScript Developer",
"start": "Jun 2023",
"bullets": [
"Owned approximately 85% of an enterprise Laboratory Information Management System over 2.5 years, translating clinical and anatomical laboratory workflows into Next.js interfaces, Fastify APIs, MariaDB models, dynamic forms, reporting, and role-based access control.",
"Built TypeScript crypto market infrastructure with Bun, Elysia.js, Redis, and WebSockets across centralized exchanges and Solana liquidity venues.",
"Developed market monitoring, opportunity detection, fee-aware profitability checks, trade lifecycle persistence, and asynchronous execution workflows.",
"Contributed targeted frontend and REST API modernization to an OpenEMR fork while preserving workflows in a mature PHP and MySQL codebase.",
"Built and maintained production infrastructure with AWS, Docker, Linux, CI/CD, Grafana, and cloud-hosted databases."
],
"company": "Interspeed"
},
{
"end": "Feb 2023",
"role": "Web Designer & Web Developer",
"start": "2020",
"bullets": [
"Delivered 100+ website designs as part of a remote web-design team after an initial Fiverr engagement became longer-term direct work.",
"Worked with several Fiverr and direct clients; both clients who left public reviews gave 5-star ratings.",
"Built responsive business websites and interfaces, then progressed into frontend and full-stack work with JavaScript, React, Next.js, and Node.js.",
"Completed contract ecommerce work spanning storefronts, products, orders, dashboards, integrations, revisions, deployment, and maintenance."
],
"company": "Freelance / Contract"
}
]
}
```
### Node.js Developer Resume — Node.js Developer
```json
{
"basics": {
"name": "Abdullah Khalid",
"email": "khalid.code03@gmail.com",
"links": [
{
"url": "https://github.com/khalids01",
"name": "GitHub"
},
{
"url": "https://linkedin.com/in/khalid87",
"name": "LinkedIn"
}
],
"title": "Node.js Developer",
"location": "Dhaka, Bangladesh (Remote)"
},
"skills": [
{
"group": "Backend",
"items": [
"TypeScript",
"Node.js",
"Bun",
"Fastify",
"NestJS",
"Elysia.js",
"Express.js"
]
},
{
"group": "APIs & Realtime",
"items": [
"REST APIs",
"WebSockets",
"Redis Pub/Sub",
"API Security",
"Third-Party Integrations"
]
},
{
"group": "Data",
"items": [
"PostgreSQL",
"MariaDB",
"MongoDB",
"Redis",
"Prisma"
]
},
{
"group": "Cloud & Operations",
"items": [
"AWS",
"Docker",
"Linux",
"CI/CD",
"Grafana"
]
}
],
"summary": "Engineer with 6+ years of experience delivering production web systems and complex product workflows for remote teams and clients. Backend-focused developer experienced with Node.js, Bun, Fastify, Elysia.js, APIs, Redis, WebSockets, relational databases, integrations, AWS, and Docker.",
"projects": [
{
"desc": "R&D platform for real-time market intelligence, arbitrage research, strategy validation, and automated execution architecture.",
"name": "Algorithmic Crypto Trading Platform",
"links": [],
"bullets": [
"Built real-time market-data ingestion and Redis-backed processing across centralized exchanges and Solana liquidity venues.",
"Implemented cross-exchange opportunity detection, fee-aware profitability calculations, slippage and liquidity checks, simulation workflows, and trade lifecycle tracking."
]
},
{
"desc": "Automated trading system coordinating centralized and decentralized exchange integrations.",
"name": "Multi-Exchange Solana Trading Platform",
"links": [],
"bullets": [
"Built Bun, Elysia.js, Next.js, PostgreSQL, Prisma, Redis, and WebSocket workflows for market monitoring, balances, automated execution, and operational dashboards.",
"Integrated Binance, KuCoin, Coinbase, dYdX, and Jupiter/Solana workflows with configurable thresholds and persistent trade state."
]
},
{
"desc": "Private enterprise HealthTech platform for hospitals and diagnostic laboratories.",
"name": "Laboratory Information Management System (LIMS)",
"links": [],
"bullets": [
"Owned and delivered approximately 85% of the system over 2.5 years using Next.js, Fastify, TypeScript, and MariaDB.",
"Implemented patient and sample workflows, clinical and anatomical laboratory processes, role-based access, dynamic forms, reporting, and operational automation."
]
}
],
"education": [
{
"degree": "Diploma in Computer Science & Engineering",
"institution": "Tangail Polytechnic Institute"
}
],
"languages": [
{
"name": "English",
"level": "Professional Working Proficiency"
},
{
"name": "Bangla",
"level": "Native"
}
],
"experience": [
{
"end": "Present",
"role": "Full-Stack TypeScript Developer",
"start": "Jun 2023",
"bullets": [
"Engineered TypeScript backend services with Bun, Elysia.js, and Fastify for healthcare workflows and real-time crypto market-intelligence R&D.",
"Built Redis-backed WebSocket pipelines for live market data across Binance, KuCoin, Coinbase, dYdX, and Solana liquidity venues.",
"Implemented opportunity detection, fee-aware profitability checks, configurable thresholds, trade lifecycle persistence, and asynchronous execution processing.",
"Designed APIs, MariaDB data models, permission rules, and workflow services while owning approximately 85% of an enterprise LIMS over 2.5 years.",
"Built production infrastructure with AWS, Docker, Linux, CI/CD, Grafana, and cloud-hosted database services."
],
"company": "Interspeed"
},
{
"end": "Feb 2023",
"role": "Web Designer & Web Developer",
"start": "2020",
"bullets": [
"Progressed from web design into frontend and full-stack development through Fiverr, direct client, and contract work.",
"Built responsive websites, ecommerce services, CMS dashboards, and business workflows with JavaScript, React, Next.js, and Node.js.",
"Handled client requirements, revisions, integrations, deployments, maintenance, and production troubleshooting."
],
"company": "Freelance / Contract"
}
]
}
```
### TypeScript Developer Resume — TypeScript Developer
```json
{
"basics": {
"name": "Abdullah Khalid",
"email": "khalid.code03@gmail.com",
"links": [
{
"url": "https://github.com/khalids01",
"name": "GitHub"
},
{
"url": "https://linkedin.com/in/khalid87",
"name": "LinkedIn"
}
],
"title": "TypeScript Developer",
"location": "Dhaka, Bangladesh (Remote)"
},
"skills": [
{
"group": "Core",
"items": [
"TypeScript",
"JavaScript",
"System Design",
"Clean Architecture"
]
},
{
"group": "Applications",
"items": [
"React",
"Next.js",
"Node.js",
"Bun",
"Fastify",
"NestJS",
"Elysia.js"
]
},
{
"group": "Data & Realtime",
"items": [
"PostgreSQL",
"MariaDB",
"Redis",
"Prisma",
"WebSockets"
]
},
{
"group": "Delivery",
"items": [
"AWS",
"Docker",
"CI/CD",
"Linux",
"Grafana"
]
}
],
"summary": "Engineer with 6+ years of experience delivering production web systems and complex product workflows for remote teams and clients. Builds typed application boundaries across React, Next.js, backend services, data models, real-time processing, and operational tooling.",
"projects": [
{
"desc": "Private enterprise HealthTech platform for hospitals and diagnostic laboratories.",
"name": "Laboratory Information Management System (LIMS)",
"links": [],
"bullets": [
"Owned and delivered approximately 85% of the system over 2.5 years using Next.js, Fastify, TypeScript, and MariaDB.",
"Implemented patient and sample workflows, clinical and anatomical laboratory processes, role-based access, dynamic forms, reporting, and operational automation."
]
},
{
"desc": "R&D platform for real-time market intelligence, arbitrage research, strategy validation, and automated execution architecture.",
"name": "Algorithmic Crypto Trading Platform",
"links": [],
"bullets": [
"Built real-time market-data ingestion and Redis-backed processing across centralized exchanges and Solana liquidity venues.",
"Implemented cross-exchange opportunity detection, fee-aware profitability calculations, slippage and liquidity checks, simulation workflows, and trade lifecycle tracking."
]
},
{
"desc": "Production job-posting applications supporting public listings, administration, and business recruitment workflows.",
"name": "Job Posting Platforms",
"links": [],
"bullets": [
"Built public job discovery, listing management, administration dashboards, database-backed workflows, and production deployment flows.",
"Delivered complete features across responsive Next.js interfaces and backend services."
]
}
],
"education": [
{
"degree": "Diploma in Computer Science & Engineering",
"institution": "Tangail Polytechnic Institute"
}
],
"languages": [
{
"name": "English",
"level": "Professional Working Proficiency"
},
{
"name": "Bangla",
"level": "Native"
}
],
"experience": [
{
"end": "Present",
"role": "Full-Stack TypeScript Developer",
"start": "Jun 2023",
"bullets": [
"Owned approximately 85% of an enterprise Laboratory Information Management System over 2.5 years, translating clinical and anatomical laboratory workflows into Next.js interfaces, Fastify APIs, MariaDB models, dynamic forms, reporting, and role-based access control.",
"Built TypeScript crypto market infrastructure with Bun, Elysia.js, Redis, and WebSockets across centralized exchanges and Solana liquidity venues.",
"Developed market monitoring, opportunity detection, fee-aware profitability checks, trade lifecycle persistence, and asynchronous execution workflows.",
"Contributed targeted frontend and REST API modernization to an OpenEMR fork while preserving workflows in a mature PHP and MySQL codebase.",
"Built and maintained production infrastructure with AWS, Docker, Linux, CI/CD, Grafana, and cloud-hosted databases."
],
"company": "Interspeed"
},
{
"end": "Feb 2023",
"role": "Web Designer & Web Developer",
"start": "2020",
"bullets": [
"Delivered 100+ website designs as part of a remote web-design team after an initial Fiverr engagement became longer-term direct work.",
"Worked with several Fiverr and direct clients; both clients who left public reviews gave 5-star ratings.",
"Built responsive business websites and interfaces, then progressed into frontend and full-stack work with JavaScript, React, Next.js, and Node.js.",
"Completed contract ecommerce work spanning storefronts, products, orders, dashboards, integrations, revisions, deployment, and maintenance."
],
"company": "Freelance / Contract"
}
]
}
```
### JavaScript Developer Resume — JavaScript Developer
```json
{
"basics": {
"name": "Abdullah Khalid",
"email": "khalid.code03@gmail.com",
"links": [
{
"url": "https://github.com/khalids01",
"name": "GitHub"
},
{
"url": "https://linkedin.com/in/khalid87",
"name": "LinkedIn"
}
],
"title": "JavaScript Developer",
"location": "Dhaka, Bangladesh (Remote)"
},
"skills": [
{
"group": "Languages",
"items": [
"TypeScript",
"JavaScript",
"PHP"
]
},
{
"group": "Frontend",
"items": [
"React",
"Next.js",
"React Native",
"SvelteKit",
"Tailwind CSS"
]
},
{
"group": "Backend",
"items": [
"Node.js",
"Bun",
"Fastify",
"NestJS",
"Elysia.js",
"REST APIs"
]
},
{
"group": "Data",
"items": [
"PostgreSQL",
"MariaDB",
"MongoDB",
"Redis",
"Prisma",
"WebSockets"
]
},
{
"group": "Cloud & Delivery",
"items": [
"AWS",
"Docker",
"CI/CD",
"Linux",
"Vercel",
"Grafana"
]
}
],
"summary": "Engineer with 6+ years of experience delivering production web systems and complex product workflows for remote teams and clients. Progressed from responsive web design into frontend and full-stack development, building business interfaces, dashboards, ecommerce workflows, APIs, and production applications.",
"projects": [
{
"desc": "Production job-posting applications supporting public listings, administration, and business recruitment workflows.",
"name": "Job Posting Platforms",
"links": [],
"bullets": [
"Built public job discovery, listing management, administration dashboards, database-backed workflows, and production deployment flows.",
"Delivered complete features across responsive Next.js interfaces and backend services."
]
},
{
"desc": "Production commerce systems for client and business-owned retail workflows.",
"name": "Ecommerce Applications",
"links": [],
"bullets": [
"Built storefront, product, order, dashboard, payment, and third-party integration workflows used for real customer purchases.",
"Handled responsive interfaces, business requirements, revisions, deployment, and ongoing maintenance."
]
},
{
"desc": "Private enterprise HealthTech platform for hospitals and diagnostic laboratories.",
"name": "Laboratory Information Management System (LIMS)",
"links": [],
"bullets": [
"Owned and delivered approximately 85% of the system over 2.5 years using Next.js, Fastify, TypeScript, and MariaDB.",
"Implemented patient and sample workflows, clinical and anatomical laboratory processes, role-based access, dynamic forms, reporting, and operational automation."
]
}
],
"education": [
{
"degree": "Diploma in Computer Science & Engineering",
"institution": "Tangail Polytechnic Institute"
}
],
"languages": [
{
"name": "English",
"level": "Professional Working Proficiency"
},
{
"name": "Bangla",
"level": "Native"
}
],
"experience": [
{
"end": "Present",
"role": "Full-Stack TypeScript Developer",
"start": "Jun 2023",
"bullets": [
"Owned approximately 85% of an enterprise Laboratory Information Management System over 2.5 years, translating clinical and anatomical laboratory workflows into Next.js interfaces, Fastify APIs, MariaDB models, dynamic forms, reporting, and role-based access control.",
"Built TypeScript crypto market infrastructure with Bun, Elysia.js, Redis, and WebSockets across centralized exchanges and Solana liquidity venues.",
"Developed market monitoring, opportunity detection, fee-aware profitability checks, trade lifecycle persistence, and asynchronous execution workflows.",
"Contributed targeted frontend and REST API modernization to an OpenEMR fork while preserving workflows in a mature PHP and MySQL codebase.",
"Built and maintained production infrastructure with AWS, Docker, Linux, CI/CD, Grafana, and cloud-hosted databases."
],
"company": "Interspeed"
},
{
"end": "Feb 2023",
"role": "Web Designer & Web Developer",
"start": "2020",
"bullets": [
"Delivered 100+ website designs as part of a remote web-design team after an initial Fiverr engagement became longer-term direct work.",
"Worked with several Fiverr and direct clients; both clients who left public reviews gave 5-star ratings.",
"Built responsive business websites and interfaces, then progressed into frontend and full-stack work with JavaScript, React, Next.js, and Node.js.",
"Completed contract ecommerce work spanning storefronts, products, orders, dashboards, integrations, revisions, deployment, and maintenance."
],
"company": "Freelance / Contract"
}
]
}
```
### Senior JavaScript Engineer Resume — Senior JavaScript Engineer
```json
{
"basics": {
"name": "Abdullah Khalid",
"email": "khalid.code03@gmail.com",
"links": [
{
"url": "https://github.com/khalids01",
"name": "GitHub"
},
{
"url": "https://linkedin.com/in/khalid87",
"name": "LinkedIn"
}
],
"title": "Senior JavaScript Engineer",
"location": "Dhaka, Bangladesh (Remote)"
},
"skills": [
{
"group": "Languages",
"items": [
"TypeScript",
"JavaScript",
"PHP"
]
},
{
"group": "Frontend",
"items": [
"React",
"Next.js",
"React Native",
"SvelteKit",
"Tailwind CSS"
]
},
{
"group": "Backend",
"items": [
"Node.js",
"Bun",
"Fastify",
"NestJS",
"Elysia.js",
"REST APIs"
]
},
{
"group": "Data",
"items": [
"PostgreSQL",
"MariaDB",
"MongoDB",
"Redis",
"Prisma",
"WebSockets"
]
},
{
"group": "Cloud & Delivery",
"items": [
"AWS",
"Docker",
"CI/CD",
"Linux",
"Vercel",
"Grafana"
]
}
],
"summary": "Engineer with 6+ years of experience delivering production web systems and complex product workflows for remote teams and clients. Owns complex React and Next.js products end to end, with backend and real-time systems experience in Node.js, Bun, APIs, databases, and production delivery.",
"projects": [
{
"desc": "Private enterprise HealthTech platform for hospitals and diagnostic laboratories.",
"name": "Laboratory Information Management System (LIMS)",
"links": [],
"bullets": [
"Owned and delivered approximately 85% of the system over 2.5 years using Next.js, Fastify, TypeScript, and MariaDB.",
"Implemented patient and sample workflows, clinical and anatomical laboratory processes, role-based access, dynamic forms, reporting, and operational automation."
]
},
{
"desc": "Automated trading system coordinating centralized and decentralized exchange integrations.",
"name": "Multi-Exchange Solana Trading Platform",
"links": [],
"bullets": [
"Built Bun, Elysia.js, Next.js, PostgreSQL, Prisma, Redis, and WebSocket workflows for market monitoring, balances, automated execution, and operational dashboards.",
"Integrated Binance, KuCoin, Coinbase, dYdX, and Jupiter/Solana workflows with configurable thresholds and persistent trade state."
]
},
{
"desc": "Production job-posting applications supporting public listings, administration, and business recruitment workflows.",
"name": "Job Posting Platforms",
"links": [],
"bullets": [
"Built public job discovery, listing management, administration dashboards, database-backed workflows, and production deployment flows.",
"Delivered complete features across responsive Next.js interfaces and backend services."
]
}
],
"education": [
{
"degree": "Diploma in Computer Science & Engineering",
"institution": "Tangail Polytechnic Institute"
}
],
"languages": [
{
"name": "English",
"level": "Professional Working Proficiency"
},
{
"name": "Bangla",
"level": "Native"
}
],
"experience": [
{
"end": "Present",
"role": "Full-Stack TypeScript Developer",
"start": "Jun 2023",
"bullets": [
"Owned approximately 85% of an enterprise Laboratory Information Management System over 2.5 years, translating clinical and anatomical laboratory workflows into Next.js interfaces, Fastify APIs, MariaDB models, dynamic forms, reporting, and role-based access control.",
"Built TypeScript crypto market infrastructure with Bun, Elysia.js, Redis, and WebSockets across centralized exchanges and Solana liquidity venues.",
"Developed market monitoring, opportunity detection, fee-aware profitability checks, trade lifecycle persistence, and asynchronous execution workflows.",
"Contributed targeted frontend and REST API modernization to an OpenEMR fork while preserving workflows in a mature PHP and MySQL codebase.",
"Built and maintained production infrastructure with AWS, Docker, Linux, CI/CD, Grafana, and cloud-hosted databases."
],
"company": "Interspeed"
},
{
"end": "Feb 2023",
"role": "Web Designer & Web Developer",
"start": "2020",
"bullets": [
"Delivered 100+ website designs as part of a remote web-design team after an initial Fiverr engagement became longer-term direct work.",
"Worked with several Fiverr and direct clients; both clients who left public reviews gave 5-star ratings.",
"Built responsive business websites and interfaces, then progressed into frontend and full-stack work with JavaScript, React, Next.js, and Node.js.",
"Completed contract ecommerce work spanning storefronts, products, orders, dashboards, integrations, revisions, deployment, and maintenance."
],
"company": "Freelance / Contract"
}
]
}
```
### Senior Frontend Developer Resume — Senior Frontend Developer
```json
{
"basics": {
"name": "Abdullah Khalid",
"email": "khalid.code03@gmail.com",
"links": [
{
"url": "https://github.com/khalids01",
"name": "GitHub"
},
{
"url": "https://linkedin.com/in/khalid87",
"name": "LinkedIn"
}
],
"title": "Senior Frontend Developer",
"location": "Dhaka, Bangladesh (Remote)"
},
"skills": [
{
"group": "Core Frontend",
"items": [
"TypeScript",
"React",
"Next.js",
"JavaScript",
"Tailwind CSS"
]
},
{
"group": "Application UI",
"items": [
"Responsive UI",
"Dashboards",
"Dynamic Forms",
"State Management",
"Performance Optimization"
]
},
{
"group": "Cross-Platform",
"items": [
"React Native",
"SvelteKit"
]
},
{
"group": "Integration",
"items": [
"REST APIs",
"WebSockets",
"Node.js",
"Prisma",
"PostgreSQL"
]
},
{
"group": "Delivery",
"items": [
"Vercel",
"AWS",
"CI/CD",
"Production Debugging"
]
}
],
"summary": "Frontend-focused TypeScript developer with 6+ years of experience building React and Next.js applications for complex business workflows. Experienced in responsive dashboards, dynamic forms, role-aware interfaces, real-time data views, API integration, performance-focused implementation, and delivering production features with backend and product stakeholders.",
"projects": [
{
"desc": "Private enterprise HealthTech platform for hospitals and diagnostic laboratories.",
"name": "Laboratory Information Management System (LIMS)",
"links": [],
"bullets": [
"Owned and delivered approximately 85% of the system over 2.5 years using Next.js, Fastify, TypeScript, and MariaDB.",
"Implemented multi-role access, dynamic forms, patient and sample flows, clinical and anatomical laboratory workflows, and reporting automation."
]
},
{
"desc": "Commercial job-posting applications supporting real business recruitment workflows.",
"name": "Production Job Platforms",
"links": [],
"bullets": [
"Delivered public job discovery, listing management, administration dashboards, and production deployment flows.",
"Built complete features across responsive Next.js interfaces, backend services, and database-backed workflows."
]
},
{
"desc": "Targeted modernization of clinician and patient workflows in a mature OpenEMR fork.",
"name": "OpenEMR Workflow Modernization",
"links": [],
"bullets": [
"Improved selected React interfaces and REST API integrations while working within a large PHP and MySQL codebase.",
"Preserved established EMR behavior while incrementally improving usability and maintainability."
]
}
],
"education": [
{
"end": "Present",
"start": "2024",
"degree": "B.Sc. in Computer Science & Engineering",
"institution": "Uttara University"
},
{
"end": "2023",
"start": "2019",
"degree": "Diploma in Computer Science & Engineering",
"institution": "Tangail Polytechnic Institute"
}
],
"languages": [
{
"name": "English",
"level": "Professional Working Proficiency"
},
{
"name": "Bangla",
"level": "Native"
}
],
"experience": [
{
"end": "Present",
"role": "Frontend-Leaning Full-Stack TypeScript Developer",
"start": "Jan 2023",
"bullets": [
"Built complex Next.js interfaces for an enterprise LIMS, including multi-role dashboards, dynamic forms, patient and sample workflows, and clinical reporting flows.",
"Owned approximately 85% of the LIMS over 2.5 years, connecting responsive application workflows to Fastify APIs and MariaDB-backed business rules.",
"Developed real-time dashboards and data views for crypto market-intelligence R&D using TypeScript and WebSocket-driven updates.",
"Modernized selected clinician and patient interfaces in an OpenEMR fork while preserving behavior in a mature legacy codebase."
],
"company": "Interspeed"
},
{
"end": "Jan 2023",
"role": "Full-Stack Web Developer",
"start": "Jan 2020",
"bullets": [
"Delivered 100+ client projects with consistent 5-star ratings, creating responsive storefronts, dashboards, CMS interfaces, and job platforms.",
"Built reusable React and Next.js features for product, order, content, administration, and payment workflows.",
"Collaborated across APIs, databases, deployments, and production debugging to deliver complete features for remote clients."
],
"company": "Freelance / Contract"
}
]
}
```
### Full-Stack TypeScript Engineer Resume — Full-Stack TypeScript Engineer
```json
{
"basics": {
"name": "Abdullah Khalid",
"email": "khalid.code03@gmail.com",
"links": [
{
"url": "https://github.com/khalids01",
"name": "GitHub"
},
{
"url": "https://linkedin.com/in/khalid87",
"name": "LinkedIn"
}
],
"title": "Full-Stack TypeScript Engineer",
"location": "Dhaka, Bangladesh (Remote)"
},
"skills": [
{
"group": "Core",
"items": [
"TypeScript",
"JavaScript",
"System Design",
"Clean Architecture"
]
},
{
"group": "Applications",
"items": [
"React",
"Next.js",
"Node.js",
"Bun",
"Fastify",
"NestJS",
"Elysia.js"
]
},
{
"group": "Data & Realtime",
"items": [
"PostgreSQL",
"MariaDB",
"Redis",
"Prisma",
"Drizzle",
"WebSockets"
]
},
{
"group": "Delivery",
"items": [
"AWS",
"Docker",
"CI/CD",
"Linux",
"Grafana"
]
}
],
"summary": "Full-stack TypeScript engineer with 6+ years of experience building maintainable web applications, backend services, data models, and real-time systems. Combines React and Next.js product delivery with Node.js and Bun services, relational databases, Redis, WebSockets, and cloud deployment across HealthTech, FinTech R&D, SaaS, and production business platforms.",
"projects": [
{
"desc": "Private enterprise HealthTech platform for hospitals and diagnostic laboratories.",
"name": "Laboratory Information Management System (LIMS)",
"links": [],
"bullets": [
"Owned and delivered approximately 85% of the system over 2.5 years using Next.js, Fastify, TypeScript, and MariaDB.",
"Implemented multi-role access, dynamic forms, patient and sample flows, clinical and anatomical laboratory workflows, and reporting automation."
]
},
{
"desc": "R&D platform for real-time market ingestion, arbitrage analysis, and execution-aware trading automation.",
"name": "Algorithmic Crypto Market Intelligence Platform",
"links": [],
"bullets": [
"Integrated live order-book data from centralized exchanges and Solana DEXs through WebSockets and Redis pub/sub.",
"Built cross-exchange opportunity scanning with fee, slippage, latency, and execution-threshold checks."
]
},
{
"desc": "Commercial job-posting applications supporting real business recruitment workflows.",
"name": "Production Job Platforms",
"links": [],
"bullets": [
"Delivered public job discovery, listing management, administration dashboards, and production deployment flows.",
"Built complete features across responsive Next.js interfaces, backend services, and database-backed workflows."
]
}
],
"education": [
{
"end": "Present",
"start": "2024",
"degree": "B.Sc. in Computer Science & Engineering",
"institution": "Uttara University"
},
{
"end": "2023",
"start": "2019",
"degree": "Diploma in Computer Science & Engineering",
"institution": "Tangail Polytechnic Institute"
}
],
"languages": [
{
"name": "English",
"level": "Professional Working Proficiency"
},
{
"name": "Bangla",
"level": "Native"
}
],
"experience": [
{
"end": "Present",
"role": "Full-Stack TypeScript Developer",
"start": "Jan 2023",
"bullets": [
"Designed TypeScript-first services and application modules across HealthTech and FinTech R&D products using Next.js, Fastify, Bun, Elysia.js, Prisma, and relational databases.",
"Owned approximately 85% of an enterprise LIMS over 2.5 years, translating complex laboratory rules into maintainable APIs, data models, dynamic forms, and permission-aware workflows.",
"Implemented event-driven market-data flows with Redis pub/sub and WebSockets across centralized exchanges and Solana DEX integrations.",
"Developed fee-, slippage-, and latency-aware arbitrage analysis while keeping exchange integrations and execution checks modular."
],
"company": "Interspeed"
},
{
"end": "Jan 2023",
"role": "Full-Stack Web Developer",
"start": "Jan 2020",
"bullets": [
"Delivered 100+ client projects with consistent 5-star ratings, building reusable full-stack features across SaaS, ecommerce, job platforms, and internal dashboards.",
"Developed typed frontend-to-backend workflows with React, Next.js, NestJS, database-backed APIs, payment integrations, and third-party services.",
"Managed production deployments and maintenance on AWS and Vercel for remote client engagements."
],
"company": "Freelance / Contract"
}
]
}
```
### Full Stack Developer Resume — Full Stack Developer
```json
{
"basics": {
"name": "Abdullah Khalid",
"email": "khalid.code03@gmail.com",
"links": [
{
"url": "https://github.com/khalids01",
"name": "GitHub"
},
{
"url": "https://linkedin.com/in/khalid87",
"name": "LinkedIn"
}
],
"title": "Full Stack Developer",
"location": "Dhaka, Bangladesh (Remote)"
},
"skills": [
{
"group": "Languages",
"items": [
"TypeScript",
"JavaScript"
]
},
{
"group": "Frontend",
"items": [
"React",
"Next.js",
"React Native",
"SvelteKit",
"Tailwind CSS"
]
},
{
"group": "Backend",
"items": [
"Node.js",
"Bun",
"Fastify",
"NestJS",
"Elysia.js",
"REST APIs"
]
},
{
"group": "Data",
"items": [
"PostgreSQL",
"MariaDB",
"MongoDB",
"Redis",
"Prisma",
"Drizzle"
]
},
{
"group": "Cloud & Delivery",
"items": [
"AWS",
"Docker",
"CI/CD",
"Linux",
"Vercel",
"Grafana"
]
}
],
"summary": "Full stack developer with 6+ years of experience taking web products from requirements through UI, APIs, databases, integrations, deployment, and production support. Delivered 100+ highly rated client projects and substantial enterprise HealthTech work, with additional experience across ecommerce, job platforms, SaaS, and real-time applications.",
"projects": [
{
"desc": "Private enterprise HealthTech platform for hospitals and diagnostic laboratories.",
"name": "Laboratory Information Management System (LIMS)",
"links": [],
"bullets": [
"Owned and delivered approximately 85% of the system over 2.5 years using Next.js, Fastify, TypeScript, and MariaDB.",
"Implemented multi-role access, dynamic forms, patient and sample flows, clinical and anatomical laboratory workflows, and reporting automation."
]
},
{
"desc": "Commercial job-posting applications supporting real business recruitment workflows.",
"name": "Production Job Platforms",
"links": [],
"bullets": [
"Delivered public job discovery, listing management, administration dashboards, and production deployment flows.",
"Built complete features across responsive Next.js interfaces, backend services, and database-backed workflows."
]
},
{
"desc": "Production commerce systems for client and business-owned retail workflows.",
"name": "Ecommerce Applications",
"links": [],
"bullets": [
"Built storefront, product, order, dashboard, payment, and third-party integration workflows.",
"Delivered applications used for real sales and day-to-day business operations."
]
}
],
"education": [
{
"end": "Present",
"start": "2024",
"degree": "B.Sc. in Computer Science & Engineering",
"institution": "Uttara University"
},
{
"end": "2023",
"start": "2019",
"degree": "Diploma in Computer Science & Engineering",
"institution": "Tangail Polytechnic Institute"
}
],
"languages": [
{
"name": "English",
"level": "Professional Working Proficiency"
},
{
"name": "Bangla",
"level": "Native"
}
],
"experience": [
{
"end": "Present",
"role": "Full-Stack TypeScript Developer",
"start": "Jan 2023",
"bullets": [
"Delivered approximately 85% of an enterprise LIMS over 2.5 years, spanning data models, Fastify APIs, Next.js interfaces, role-based access, dynamic forms, and laboratory reporting workflows.",
"Built real-time market-data and arbitrage R&D features across centralized exchanges and Solana DEXs using TypeScript, Bun, Elysia.js, Redis pub/sub, and WebSockets.",
"Connected operational workflows to MariaDB and PostgreSQL data layers and built monitoring views with Grafana and AWS Athena.",
"Modernized selected patient and clinician workflows in an OpenEMR fork through targeted frontend and REST API improvements."
],
"company": "Interspeed"
},
{
"end": "Jan 2023",
"role": "Full-Stack Web Developer",
"start": "Jan 2020",
"bullets": [
"Completed 100+ client projects with consistent 5-star ratings, taking products from requirements and UI implementation through APIs, integrations, and deployment.",
"Built CMS dashboards, job platforms, and multi-vendor ecommerce systems with React, Next.js, NestJS, and relational databases.",
"Integrated payment gateways and third-party services and maintained production applications on AWS and Vercel."
],
"company": "Freelance / Contract"
}
]
}
```