Updating packages and reviewing pull requests. Authoring new features and fixing existing ones — well, standard maintenance.

Consulting on language design and developing IDE features and a new parser for Squiggle — a language for quick modelling and estimation

Packaging Nix derivations for all sorts of languages, including Rust, OCaml, Haskell, Elixir; Managing and maintaining infrastructure in Nix; patching software to meet our demands, and developing new utilities.

Developing Substrate node and methods for Pontem bridge. Maintaining network security. R&D novel methods for benchmarking. Packaging Nix derivations.

I’ve written two apps for Obed Bufet — one for placing orders, and one for couriers delivering those. Testing those hands on, and working closely with both couriers and users allowed me to quickly iterate and provide best (in their words) experience possible. Also I performed a lot of linux server administration for our development/build server.