Featured Projects
Eltunnel — ngrok-style Tunneling Tool
Built a full-stack tunneling tool that exposes localhost services over a public URL using persistent WebSocket connections — the same core idea as ngrok, built from scratch. The Go relay server handles concurrent client connections via goroutines and channels, and uses subdomain-based routing to map each client to its inbound requests. A custom request ID correlation protocol lets multiple in-flight requests share a single WebSocket without collisions. Measured ~7ms average round-trip latency locally. Also identified and documented a sequential processing bottleneck in the Python client — the kind of thing that matters when you're proxying more than one request at a time.
Distributed Rate Limiter
A token-bucket rate limiter built to actually work in a distributed environment — not just on one instance. Redis handles shared state across nodes, and Lua scripts make the quota checks atomic so there are no race conditions under concurrent load. Tested it with k6 to 7,500 req/sec; P95 latency stayed under 11ms. Prometheus and Grafana for observability.
Bilimly.ai — AI Tutoring Platform
A full-stack learning platform I built and shipped. Spring Boot backend, React frontend, JWT auth, deployed on the cloud. Integrated Claude's API for grammar feedback and lesson generation, added caching to keep API costs sane. Currently serving real users with 30+ lessons and 300+ exercises.
Cardiovascular Disease Detector
Trained a classification model on 1,000+ clinical records — age, cholesterol, ECG readings — to predict cardiovascular risk. Hit 95% accuracy and wrapped it in a Streamlit app so it's actually usable by someone who isn't running a Jupyter notebook.