Remote: preferred

Willing to relocate: Possibly

Technologies: Nix/NixOS (multi-site homelab), Linux, Clojure/CLJS, Zig + others as needed

Resume/CV: email

Email: hn@psyclyx.xyz

Prior position: Senior SDE working on various parts of a Customer Data Platform/data deduplication system. Put together new product surfaces, maintained existing ones, took on large pieces of tech debt, found opportunities to improve relationships with important customers.

Recently, I've been hacking on github.com/psyclyx/fix, a fast Nix evaluator in Zig, which achieves meaningful (2-5x) evaluation time improvements on NixOS systems over CppNix and forks. I've also been working on a multiplayer CRDT-based text editor with a WASM plugin runtime, targeting something in between Emacs and Zed. Pre-release, but would make a good demo at the start of a call.

Neither of these are areas I had much experience in prior to working on them, I've just been going deep on problems that I wanted to be solved. I'm looking for a role where I can apply that to hard problems alongside driven people and have an impact. Early-stage companies preferred.

Pokemon was so slow that coming up with TAS scripts, even with state saves/loads for every run, became infeasible, so I ended up searching against a C implementation of the same emulator. It eventually beat Brock, but was very button-inefficient and would've taken 10 hours to play back under Nix, if it would've even made it that far. On my implementation, if I turn the GC off, the much shorter script in [3] OOMs on a box with 128gb about 2/3 of the way through!

[0]: my claudes [1]: https://github.com/psyclyx/nixboy [2]: https://x.com/psyclyx/status/2066249660046725213 [3]: https://github.com/psyclyx/fix#a-less-rigorous-benchmark