Paasa (YC S24) — Full-Stack Developer Intern
Nov 2024 — Jan 2025- Built admin panel (React/Python/SQL) → 3x advisor productivity.
- Deployed AWS infra; ~80% cost reduction.
- Contributed mobile light-mode UI + WhatsApp AI MCP server.
Varun Sahni
Purdue CS/CE '28 · systems & computer architecture · spanning CS + ECE
About
I build where hardware meets software—RISC-V & memory hierarchies up to reliable web systems. I like to find community and share knowledge. I ship fast, document well, and keep things simple.
Experience
CortX (Healthcare startup) — Co-Founder & Founding Engineer
2021 — 2022- One of 5 core founders; led full-stack (React + Express).
- Designed 'health-audit' algorithm to consolidate patient histories.
- Work recognized by Young Changemaker Award (Govt. of India).
Selected Projects
See AllLive data-streaming proxy API (SSE/WebSocket) for serverless environments.
Bun SSE WebSocket Serverless
Caching layer for Bun + SQLite (1K+ downloads).
Bun SQLite LRU Caching
WebRTC video-calling app (CS50x final) — 100+ registrations.
WebRTC TypeScript PWA
Minecraft gameplay mod — 23K+ downloads.
Java Forge Gradle Game Modding
India's first performance-aware programming contest; Python multiprocessing + SQLite as the teaching stack, site in Astro.
Astro Tailwind CSS Python SQLite
Interschool tech symposium site; event management, live leaderboard, and announcement hub.
Astro Tailwind CSS Netlify
Research
- Self-directed CV/ML: lightweight CNN for GI disorder detection (97.82% on HyperKvasir).
- Presented at UMich AI Symposium, IEEE CICT, SLAS Data 2024, SCCUR, IFIC Zhejiang Lab.
- First-author IEEE paper pending.
Leadership & Community
- Head of ICT — The Shri Ram School: ran ShriTeq (90+ schools), AI & Cybersecurity Weeks (800+ students).
- Launched Parallelized — India's first performance-aware programming contest.
- Hack Club — member & mentor; Pure Hearts co-founder (3K+ beneficiaries; 500+ volunteers; $30K+ raised).
Education & Courses
Purdue University
West Lafayette, INB.S. Computer Science ('28) · spanning CS & ECE
- 3.92 GPA, Dean's List
- ECE 264 (Advanced C Programming)
- CS 180 (Object-Oriented Programming)
- Interests: Arch, Systems, AI/ML
UC Berkeley — Summer Sessions
Berkeley, CACS61C (A-), Data 8 (B+)
- CS 61C, computer architecture: boolean logic, C, assembly, memory hierarchy, pipelining, parallelism; built a 5-stage pipelined RISC-V CPU in Logisim.
- DATA 8: inference on real-world datasets using Python/NumPy/Pandas.
Skills
Languages: Python, C, Java, JavaScript/TypeScript, SQL (PostgreSQL, libSQL), RISC-V
Frameworks: React, Next.js, Svelte, Astro, Bun, Node.js, Flask, FastAPI, Django, NestJS, Express, TailwindCSS
ML: NumPy, Pandas, scikit-learn, TensorFlow, PyTorch, Keras
Tools: Git, Docker, VS Code