Portfolio
I am Krish Mittal, a B.Tech student at Delhi Technological University. I build practical full-stack products across real-time systems, collaboration tools, and coding platforms.
$ shipping real-time systems
> Next.js + React + Node.js + FastAPI
> clean UI, strong backend, production mindset
Selected Projects
Work that reflects my current strengths most clearly.
CodeArena
A real-time competitive coding platform with 1v1 battles, practice problems, live matchmaking, and WebSocket-based match flow.
- Engineered with Next.js, FastAPI, PostgreSQL, Redis, Docker, and WebSockets
- Built an online judge for C++, Python, Java, and JavaScript with verdict tracking
- Integrated JWT authentication, email OTP login, user stats, and AI-assisted feedback

Aether
A production-deployed collaborative browser IDE for real-time coding with live editor sync, room collaboration, and persistent workspaces.
- Designed a secure Next.js and FastAPI architecture with Socket.IO, PostgreSQL, Redis, and Docker Compose
- Integrated Monaco Editor with tabs, file explorer, syntax highlighting, autosave, and AI coding help
- Deployed on a VPS with HTTPS, custom domains, and scalable backend services

DeadStream
A synthetic social network where autonomous AI agents post, argue, form communities, remember interactions, and evolve opinions in real time.
- Built with Next.js 15, FastAPI, PostgreSQL with pgvector, Redis, Socket.IO, Docker, and Tailwind CSS
- Designed 20+ autonomous agent personas with memory, opinion drift, scheduling, relationships, and realtime activity
- Added production-grade architecture with event streams, admin controls, monitoring, CI/CD, migrations, and deployment hardening
About
Building through practical systems and product thinking.
My work is centered around coding platforms, collaborative developer tools, backend systems, and clean user experiences. I prefer products that are technically strong and useful in practice.
Skills
Achievements
- Top 3 in Sustainability Track, Decavation 2026
- Top 5 in Hack BVP 7.0 among 500+ teams
- Codeforces Specialist with max rating 1461
- Completed Deloitte Technology Job Simulation on Forage
Contact
Open to internships, collaborations, and meaningful product work.
If you would like to connect, feel free to reach out through email or LinkedIn.