AI Software Engineer · Open Source · Rust · Knowledge Graphs
I build local-first AI infrastructure. I'm the author of brain-server — a semantic-memory and knowledge-graph server for AI agents — written in Rust, with zero per-query cost and no LLM in the loop.
- Rust — memory servers, retrieval engines, knowledge graphs, vector databases
- AI / ML — semantic search, RAG, embeddings, human-in-the-loop governance
- Product design — functional, accessible, beautiful digital experiences
brain-server — a local-first semantic-memory and knowledge-graph server for AI agents. Hybrid RAG retrieval, temporal facts, append-only audit chain, human-in-the-loop governance. Self-hosted, offline-first, zero per-query cost.
- GitHub: github.com/markfietje
- X / Twitter: @mark_fietje
Open to collaboration on AI infrastructure and open-source projects.