Senior software engineer building AI systems: LLM harnesses, agentic automation, evals, MCP. Full-stack TypeScript and Python, 7+ years. Based in Antwerp, Belgium.
- pi-jutsu - extensions for the pi coding agent, hardened through daily driving: shadow-clone agent swarms with a live TUI dashboard, autonomous goal mode, stealth browser control, parallel code review
- Renfo.studio - desktop app for kids' photographers: batch costume portraits from one shot per child, the face stays untouched, 300 dpi print output (releases) (Tauri + Rust + React, fal.ai)
- promptbook - prompts-as-code: deterministic prompt composition from plain files, with lint, trace and a graph view.
npx skills add markbrutx/promptbook - Tabby - free, open-source macOS terminal workspace: browser-style tabs, split panes, live sessions (Rust + Tauri)
- gemini-plugin-cc - Claude Code plugin that delegates visual analysis and design review to Gemini CLI
- aidle.click - focus timer meets idle game: every finished focus session grows a tomato (source)
- saaslots.com - slot machine for SaaS ideas: pick a model, pull the lever, ship the result. Telegram Mini App
- AI-workflow and security automation in production on a large healthcare platform
- LLM harness tooling: MCP servers, sub-agents, repo-scoped rules, prompt evals - the multi-agent patterns behind pi-jutsu
- Stack I reach for: TypeScript, Python, FastAPI, PostgreSQL, React