About

I'm Simon Carstensen, a full stack developer with around twenty years of experience in JavaScript and Python, based in Denmark. I went through Y Combinator's first batch in 2005, co-founding Infogami with Aaron Swartz, and in 2007 we built the original Jottit together. At TRAEDE I worked on the core of their ERP system: orders, invoicing and credit notes. In recent years my focus has been using AI in the development process: agentic coding tools, MCP servers, and my own agent harness, Skelcrew.

Email: me@simonbc.com · LinkedIn · X