Hello! I’m a software developer. Available for freelance work.

In previous lives I was a lawyer and a martial arts instructor.

Email me at walther@hwc.io github

Career interests:

  • Math (category theory)
  • Systems engineering
  • Data engineering
  • Backend services
  • Internal tooling and CLI tools
  • Rust (the language)


  • Yoga / qi gong
  • Go (aka weiqi) the board game
  • Playing music
  • Table Tennis