Deepak Kumar

Results-driven React Developer with 1+ year of experience building production-grade MERN Stack applications. Proficient in React.js, JavaScript (ES6+), Node.js, Express.js, MongoDB, and REST APIs. Delivered 3 live applications serving 500+ monthly active users with Stripe/Payfast payment integrations and AI features (ChatGPT API, HeyGen Avatar API, AWS AI Models).

GATE-qualified in Data Analytics (2025). B.Tech CSE, CGPA 8.2, Punjabi University. Strong in DSA, OOP, Redux, and responsive web design.

React Developer | Full Stack Developer at Defsoft Informatics (2025-04 – Present)

• Architected DomCantoRoyal (domcantoroyal.com) — MERN marketplace with three React role panels (Vendor, User, Admin), real-time booking, Redux, and Stripe API. Serves 500+ monthly users with <2s response time and 99.8% payment success.
• Built Skills & Trade (skillsandtrade.com) — three-role MERN job platform with bidding engine, real-time notifications, and Payfast API. Onboarded 300+ members; 50+ transactions with zero failures.
• Engineered DrAivatar (draivatar.com) — AI MERN patient portal with custom AWS AI model, HeyGen Avatar API for spoken responses, and WebSocket. Achieved <2s latency, 92% accuracy, 1,000+ queries served.
• Developing ADHD Mental Health Portal — MERN app with therapy intake forms, Google Meet API automation, and Google Maps/Location API for provider discovery.
• Building Teacher AI Portal — MERN platform with ChatGPT API responses and HeyGen Avatar API spoken delivery via WebSocket streaming.

Web Development Intern | Frontend Developer at Solitaire Infosys (2023-06 – 2023-07)

• Developed responsive frontend components with HTML5, CSS3, and JavaScript, ensuring cross-browser compatibility.
• Redesigned UI/UX of existing pages, achieving a 15% improvement in user engagement metrics and session duration.

B.Tech in Computer Science & Engineering – Punjabi University, Patiala (2025-05)

Class XII in Non-Medical (PCM) – Meritorious School, Bathinda (2021)