a selection of things i've built over the last few years.

A platform for my university that brings cafeteria pre-ordering, room booking, faculty availability and a job portal into one place, with separate flows for students, teachers and admins. It also has a Gemini-powered chatbot that answers questions about the campus from a custom knowledge base.

Next.js 15 · Socket.IO · Gemini · MongoDB

An on-site agent for this portfolio that answers questions about my work, writing and background. A custom LangGraph tool loop coordinates its tools; FastAPI streams each step, and an evaluation suite checks routing and answer quality. Postgres keeps conversations durable, while bounded retries and a warm-on-load health check keep the public widget responsive.

Python · LangGraph · FastAPI · Postgres / pgvector · SSE

A backend for support inboxes like Crisp and Chatwoot that answers product questions from approved records instead of from whatever the model remembers. Incoming messages are verified and queued so nothing gets lost or answered twice, and a person can take over a conversation and hand it back. It's a reference build that runs locally rather than a hosted product.

TypeScript · Fastify · PostgreSQL · Drizzle · Gemini

An online multiplayer card game you can play with friends. Its Socket.IO game server handles rooms, turns and reconnects, keeping every player's screen in sync.

Next.js · Node.js · Socket.IO · XState

The live visitor and Prius counts at the bottom of this site, running as their own small AWS service. A Python Lambda and DynamoDB sit behind an API Gateway, all of it defined in Terraform and deployed by GitHub Actions with no stored keys. It's a tiny backend, but I built the full production setup around it on purpose, as my take on the Cloud Resume Challenge.

AWS Lambda · DynamoDB · API Gateway · Terraform · GitHub Actions