H M Infas Dulla Moham ed

Available to hire

js/Express and NestJS back-end services. io.

About

I’m a full-stack engineer with 7+ years of experience building and shipping end-to-end web and mobile products, from React and React Native front ends to Node.js/Express and NestJS back-end services. I enjoy turning complex product ideas into reliable REST APIs, event-driven services, and real-time dashboards using tools like Redis, RabbitMQ, MongoDB, and Socket.io.

I also work daily with AI-assisted development (GitHub Copilot, Cursor, Claude, and agentic workflows) to speed up implementation while keeping quality high through strong testing, CI/CD practices, and careful review of AI-generated code. I’ve led multiple releases from design and implementation through App Store/Google Play deployment, and I’m especially comfortable designing responsive UI, optimizing server state with TanStack Query, and handling security features like JWT/OAuth2 and role-based access.

  • 7 years' experience
  • Joined May 2025

Industry experience

  • Software & Internet
  • Gaming
  • Professional Services
  • Computers & Electronics
  • Media & Entertainment
  • Healthcare

Work experience· 4 roles

Senior Software Engineer · OPPTYMar 2023 – Present · 3 yrs 9 mos

Led full-stack development of OppTy v1.0 with React/TypeScript frontend and Node.js/Express backend, implementing JWT authentication, RESTful APIs, Socket.io, MongoDB, Firebase, and SMTP integrations; introduced Java/Spring Boot services, Redis caching, RabbitMQ messaging, and microservices architecture. Built responsive front-end with lazy loading, SSR, and TailwindCSS; deployed on AWS EC2 and S3; developed cross-platform React Native app with Firebase authentication, push notifications, and Socket.io; integrated secure payment gateways and comprehensive testing using Jest.

Software Engineer · EXCELGAMES INTERACTIVEFeb 2022 – Apr 2023 · 1 yr 3 mos

Backend development with Node.js/Express/NestJS, and Prisma ORM across MongoDB and MySQL; built RESTful APIs and microservices, integrated Java/Spring Boot, Redis caching, and RabbitMQ for asynchronous messaging. Created web and mobile apps with React.js, Next.js, and React Native Expo; leveraged NativeWind for responsive design, and BLE technology for real‑time hardware communication. Deployed on AWS EC2/S3; implemented JWT/OAuth security and Jest tests; collaborated with cross-functional teams using Postman, Chrome DevTools, Jira, and Git.

Full Stack Developer · GROUNDZERO HOLDINGSDec 2019 – Nov 2021 · 2 yrs

Built a comprehensive social media app with an integrated UK job board; developed web front-end with React.js/Redux and mobile with React Native; designed scalable backend with Node.js and MongoDB; deployed on AWS with EC2/S3 for reliability and scalability; focused on performance optimization and cross‑platform consistency.

Software Engineer Trainee · SLIITFeb 2019 – Aug 2019 · 7 mos

Education

BSc (Hons) in Information Technology · Sri Lanka Institute of Information Technology (SLIIT)2017 – 2021

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