Sonu Paswan

Software Engineer with hands-on experience building production-grade full-stack applications using JavaScript, TypeScript, React.js, Node.js, and MongoDB. Proficient in REST API design, JWT authentication, RBAC, and secure backend architecture. Experienced with Docker, CI/CD pipelines, Jest testing, and cloud deployments.

Skilled in integrating AI features via OpenAI API. Strong foundation in OOP, data structures, MVC, system design, and Agile SDLC. Delivers clean, tested, maintainable code end-to-end.

Software Developer Engineer Intern at Bluestock Fintech (2025-06 – 2025-08)

• Built 15+ modular, reusable React.js UI components and scalable Node.js backend services, improving application throughput by 35% via optimized state handling and lazy loading.
• Integrated 10+ secure REST APIs for client-server communication using JWT authentication; participated in Agile sprints delivering 8 features across 3 sprint cycles with zero critical bugs.
• Wrote unit tests using Jest achieving 80% code coverage; implemented CI/CD pipeline with GitHub Actions reducing deployment time by 50%.

Fullstack Developer Engineer Intern at Cognifyz Technologies (2026-01 – 2026-03)

• Delivered authentication, CRUD, and API modules using TypeScript and Node.js; linked React.js frontend views to backend services enabling real-time data rendering for 500+ concurrent users.
• Implemented input validation and structured error handling that reduced runtime failures by 40% and improved system stability, deployed on Docker containers via CI/CD pipeline.

B.Tech in Computer Science and Engineering – Modi Institute of Technology, Kota (2021-08 – 2025-05)