Hello, again
I codify contracts between systems for a living, in Rust and Python; and once spent a decade chasing where the antimatter went.
Senior software engineer at PactFlow (SmartBear). Open source contributor to pact-python,tikz-feynman, rust-skiplist, and more.
Previously: data and cloud engineering at KPMG, and a PhD in theoretical particle physics.
The year in code
3550 commits, 499 PRs, and 183 issues across 34 repositories.
Most of what I make is open. The grid below is the truthful version of a résumé — public, dated, and dense in the parts where I was paying attention.
Latest commits
JP-Ellis/dotfileschore(claude): advance the diataxis submodule7h
JP-Ellis/dotfileschore(nvim): refresh the plugin lockfile7h
JP-Ellis/dotfileschore(claude): pin the model to 1M-context Opus7h
JP-Ellis/dotfilesfeat(rustic): schedule macOS backups with launchd7h
JP-Ellis/dotfilesfeat(rustic): template the config per machine7h
JP-Ellis/dotfilesfeat(claude): add severity and effort scoring1d
Latest issues & PRs
JP-Ellis/dotfiles[PR · merged]
feat(rustic): automate home backups to the NAS5hJP-Ellis/borrow-checker[issue · open]
chore(bc-ui): invented data for the QA showcase fixtures1dJP-Ellis/borrow-checker[issue · open]
fix(bc-ui): refresh the metadata key registry1dJP-Ellis/borrow-checker[issue · open]
feat(bc-cli): delete a metadata key1dSelected projects
pact-pythonOSS · libraryPython bindings for Pact, rebuilt over a Rust FFI core. The version most pact-python users actually reach for.↗ github
tikz-feynmanOSS · LaTeXA LaTeX package for typesetting Feynman diagrams with TikZ; adopted across particle physics with 400+ academic citations.↗ github
↗ All projectsRecent writing