Open to opportunities

Vinay Kumar

@vinaykumar37

Message

I build AI-powered full-stack applications with MERN, RAG, real-time systems, and scalable APIs.

India

Message

What I'm looking for

I'm looking to build AI-powered, full-stack products where I can work on RAG systems, scalable backend APIs, real-time applications, and data-driven user experiences.

I'm building AI solutions for competitive exam aspirants at PREPZR, where I design REST APIs, connect them to React frontends, and create interactive dashboards.

I've improved application performance and reliability by optimizing API calls and database queries, while working with MongoDB, Express.js, React.js, Node.js, PostgreSQL, Redis, and asynchronous job processing.

I also engineered a facial-emotion detection system at NULL CLASS using TensorFlow, OpenCV, and Python. I'm completing a B.Tech in Computer Science Engineering with a focus on Artificial Intelligence.

Experience

Work history, roles, and key accomplishments

Full Stack Developer Intern

PREPZR

Sep 2025 - Jan 2026 (4 months)

Intern at PREPZR | Part of NVIDIA Inception & NASSCOM CoE | Building AI solutions for competitive exam aspirants.
- Designed REST APIs and integrated them with React frontend
- Improved performance and reliability by optimizing API calls and database queries
- I have build the interactive and beautiful dashboard.

Data Science Trainee

NULL CLASS

Jun 2024 - Jul 2024 (1 month)

Engineered an emotion detection system using TensorFlow and OpenCV to classify facial emotions from static images, integrating advanced Python techniques and statistical methods to enhance data analysis—a foundation aligning with data-driven educational insights.