Senior Software Engineer at n8nHi, I'm Thanasis. I build software with swarms of coding agents.
By day I'm an engineer at n8n. The rest of the time I ship my own products, run my own little cloud, and keep making my home a bit smarter.
The agents write it my way: simple, reliable and tested. That's how I deliver production-grade software with AI, for my own products and for clients.
- Pick the issue meScoped, labelled, with acceptance criteria.
- Own worktree setup agentIts own branch, URL and database. No agent steps on another.
- Build to the rules implementation agentThe repo's design system, conventions and boundaries.
- Regression test test agentProves the bug, then proves the fix.
- Check it in a real browser QA agentAgainst the acceptance criteria, not just green tests.
- Review and merge meCI green, diff read, shipped.
On GitHub, @gthanasis
- Contributions
- 4,473contributions, past 12 months
- Average
- 23per active day
- Streak
- 6 dayscurrent streak
Numbers from production.
Measured at Kariera Group, a multinational HR-tech platform.
of engineers on AI-assisted development
I led the rollout of LLM-assisted development across engineering, with guardrails and shared practices for how to use it well.
Kariera Group · 2025More job seekers telling us what they want
I shipped semantic search and recommendations built on OpenAI embeddings. Afterwards, the share of job seekers with two or more interests on their profile went from 35% to 60%.
Kariera Group · 2025Kept in sync in near real time
I designed fault-tolerant ingestion and sync for more than 3 million candidate profiles, streaming changes from external sources through Kafka into PostgreSQL and Elasticsearch.
Kariera Group · 2024From one deploy every 1.5 weeks to five a week
I led the move from a monolithic job board to event-driven microservices on NestJS, Kafka, PostgreSQL and Elasticsearch. Smaller pieces, shipped far more often.
Kariera Group · 2024Lower infrastructure costs
I replaced a self-hosted Druid cluster with a simpler setup built on Kafka Connect, Iceberg and batch jobs. That cut self-hosting costs by $5k every month.
Kariera Group · 2025What I'm building now.
Built with the same loop.
Get a Seat live
Take a number, take a walk. Walk-ins scan a QR at the door and wait on their phone. Staff call them from a tablet.
Born to Party live
Invitations worth opening. Sixty-seven designed themes, one link to send, and RSVPs that come back to you.
ebby source available
Every bank you use, in one place. A self-hosted spending app for Greek banks that tells you whether the month is on track before it ends.
Lumikey open source
Per-key RGB lighting for Razer keyboards on macOS. A free menu bar app.
Finch private beta
Find the right lawyer in Greece. Describe the problem in plain words and get matched with a lawyer who handles it.