CS undergrad at IIITDM Kurnool (2026). Currently building AI-agent and integration systems at Refold AI in Bangalore.

I work across the stack with a bias toward shipping. Python and TypeScript are my daily drivers; I'm at home in distributed systems, real-time backends, and LLM agent infrastructure.

• At Refold AI — MCP servers, LangGraph-based agent runtimes, enterprise integrations (SAP Ariba, Salesforce, 214+ connectors). Recently cut a service's startup memory 77% by lazy-loading connector schemas.
• Side project — sap-abap-extractor, a Python package that extracts ABAP source code from modern S/4HANA systems for LLM-based migration. Phase 3 of 6 shipped.

A 2D virtual office where distributed teams join a shared canvas, move avatars in real time, and have voice/video conversations that activate automatically when they walk near each other — recreating in-office presence remotely.

• Real-time avatar sync over WebSockets with interest management (spatial culling), cutting socket fan-out from O(N²) toward O(N)
• Proximity-triggered WebRTC for peer-to-peer voice/video — connections form and dissolve as avatars move close or apart
• Batched, rate-capped position deltas to keep large rooms smooth on consumer bandwidth

Stack — TypeScript · ReactJs · Node.js · WebSocket · WebRTC
🔗 Live demo   ·   📦 Source

A LeetCode-style platform where users solve coding problems against hidden test cases and compete in live contests with real-time leaderboards that update the moment a submission is judged.

• Sandboxed code execution in Docker containers with per-test-case time and memory limits, isolating user code from the host
• Real-time leaderboard over WebSockets — no client-side polling — pushes rank changes as submissions are scored
• Multi-language support for C++, Python, Java with queue-based grading (Redis/BullMQ) for predictable throughput under load

Stack — React.js · Node.js · Docker · WebSocket · PostgreSQL · Redis · BullMQ
🔗 Live demo   ·   📦 Source

• Knight on LeetCode — top 4%, 1900+ rating
• All India Rank 10 (Global #236) in a contest with 40,000+ participants
• 500+ DSA problems solved across LeetCode and Codeforces

Languages — Python, TypeScript, JavaScript, Java, C++
Backend — FastAPI, Node.js, Express, Spring Boot
Frontend — React, Angular, Next.js
Data & Infra — PostgreSQL, MongoDB, Redis, AWS, Docker, Kubernetes
AI / Agents — LangGraph, MCP, Claude, RAG, vector search
Real-Time — WebSocket, WebRTC, event-driven pipelines

• LeetCode — tarun_kumar1478
• Codeforces — tarunkumar1478
• LinkedIn — tarun-kumar-927937251
• Email — tarunkumar147800@gmail.com