Backend & Full-Stack Engineer
I build backends that scale — and the products that run on them.
Around four years shipping production systems end-to-end — real-time infrastructure, AI agents, and DevUtils, a developer tool I grew solo to 5,000+ monthly users.
Available for new roles · Gurugram, India · open to relocation
01 Work
Built the backend platform from an empty repo — microservices, Kubernetes, CI/CD — and owned it through production and on-call. Cut average API latency ~40% and held real-time messaging at sub-50ms across 1,000+ concurrent sessions.
Shipped MERN features end-to-end for a ~10,000-user SaaS, plus a production AI agent (RAG over vector search, with tool calls) that cut routine manual lookups roughly in half.
02 Selected work
Privacy-first developer tools, 5,000+ monthly users. Processes multi-gigabyte files entirely in the browser, so nothing ever leaves your machine.
A low-latency on-chain trading bot — mempool monitoring and flash loans with sub-second execution. Built to understand systems at the edge of latency.
A remote-browser-isolation proof-of-concept: the browser runs server-side in Playwright and streams its live viewport to the client as a continuous image feed, with input sent back over tiny image uploads — a full interactive session carried over nothing but an image transport.
An open-source engine that streams live data into otherwise-static images over a single long-lived HTTP response.
03 Tools & Skills
TypeScript, Go, Python, Rust · Node.js, React / Next.js, Flutter · PostgreSQL, MongoDB, ArangoDB, Redis, Kafka · Docker, Kubernetes, Terraform, AWS / GCP · LLMs & RAG, Custom AI model deployment & fine-tuning
04 Contact
Open to backend, full-stack, and AI engineering roles — in Gurugram, remote, or relocating.
sunandasamanta38@gmail.com ↗B.Tech, Computer Science — UEM Jaipur, 2022 · CGPA 8.9