Rupert Maiti

Python · TypeScript · Temporal · GCP · pgvector · Redis · Braintrust

Python · JavaScript · React · LangGraph · PyTorch · RAG · Vector search · LLM evals

Python · TypeScript · AWS · SQS · Lambda · Terraform

Zero-copy shared memory object store for Python, written in Rust

Python workers normally hand objects to each other by pickling them, and that gets expensive fast. Seal keeps objects in mmap-backed shared memory segments so every process reads the same bytes without copying anything. A supervisor owns the segments and workers attach to them. Refcounts live in a bitmap, so a worker that dies halfway through a write cannot corrupt a segment or leak one. I checked the concurrency two ways: loom model checking on the Rust side, and a chaos injector that killed 10,000 workers mid-run. Zero leaked segments.

Rust · PyO3 · mmap · loom

• GitHub

Agent observability harness

TRACE is the harness WAT.ai uses to see what an agent actually did on a run, step by step. I own the agent runner. It is built on Python Protocols, so the model, the tools, and the trace backend can each be swapped out without touching the run loop. Every run emits OpenTelemetry and OpenInference spans, so traces show up in whatever tooling the team already has open.

Python · OpenTelemetry · OpenInference

• GitHub

Ranks GitHub profiles against a job description

Give it a job description and a candidate's GitHub profile, and it tells you how well they line up. It reads through the candidate's public repos, looking at how active they are, how clean the code is, and whether anything is documented, then asks Gemini to score all of that against what the role asks for. The Flask backend exposes the analysis as a REST API, the Next.js frontend consumes it, and uploaded resumes go into MongoDB GridFS.

Team project with Jeffrey Huang and jordyo40.

Next.js · TypeScript · Flask · MongoDB · Gemini · GitHub API

• Demo video
• GitHub

Turns YouTube videos, PDFs, and voice recordings into study notes

Drop in a PDF, paste a YouTube link, or record yourself talking through something, and NoteBuddy hands back structured study notes. The React frontend talks to a Flask backend that handles the uploads and the summarization, with MongoDB and JWT auth behind it.

React · Flask · MongoDB · JWT

• notebuddy.me
• GitHub