Salut, I'm Catalin.

Catalin-Stefan Niculescu

I'm a software developer and AI engineer based in Amsterdam. I build full-stack applications and AI-powered tools that solve real problems. I like working across the whole stack, from designing interfaces in React to wiring up backend services and deploying infrastructure. Lately I've been spending a lot of time with LLMs, RAG pipelines, and figuring out how to make AI actually useful in production.

Find me on
driftwatch: trust, but verify okf-skill: teaching agents to use the Open Knowledge Format Contributing to Martin Kleppmann's work eg-walker-richtext: a textbook, an impossibility claim, and a rich-text CRDT context-introspect: teaching Claude to audit its own context Canvacli: a Canva CLI written for agents, not humans Spendwall: an agent spending firewall Vibe Mobile: a phone companion for Mistral's CLI agent Meter: a cost tracker for Claude Code JobTracker: a job hunt dashboard built in an evening
Currently reading Prague in Black and Gold by Peter Demetz
Last read Powers and Thrones by Dan Jones