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Rahul Kumar

@rahulkumar73

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Full Stack Engineer building LoopMock, an AI interview platform with real-time mock interviews and code execution.

India

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What I'm looking for

I'm targeting SDE internships and full-stack roles at product-focused companies.

At Advertyzement, I replaced REST with GraphQL in a React frontend, cutting network calls by 50% and improving data retrieval speed by 25%. I also updated the mobile-first interface and migrated legacy JavaScript to ES Modules.

I built LoopMock, an AI-powered interview preparation platform that generates and scores interview answers, runs code through Judge0 CE, and supports real-time peer interviews with Socket.io. I also added a resume analyzer that returns skill-gap insights and role-specific interview questions.

On SecondBrain, I built a content aggregation platform for YouTube, Twitter, and notes, using indexed MongoDB queries and server-side caching to cut retrieval latency by 50%. I’ve solved 2,000+ DSA problems and ranked in the top 5% globally on LeetCode.

Experience

Work history, roles, and key accomplishments

Frontend Engineer Intern

Advertyzement

Jul 2025 - Jan 2026 (6 months)

Engineered GraphQL integration replacing REST in a React frontend, cutting network calls by 50% and improving data retrieval speed by 25%. Architected a modular test suite with Vitest and React Testing Library, and executed a mobile-first UI overhaul achieving 100% Lighthouse accessibility score.

React GraphQL TypeScript Vitest React Testing Library JavaScript ES6 Modules Tree Shaking Lighthouse Cross Browser Development

Education

Degrees, certifications, and relevant coursework

Asansol Engineering College

Bachelor of Technology, Computer Science

2023 -

Pursuing Bachelor of Technology in Computer Science with relevant coursework in Data Structures & Algorithms, Operating Systems, DBMS, Computer Networks, OOP, and Software Engineering.