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
3690 commits, 500 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/dotfilesfeat(nvim): swap neogit push and pull popup keys4d
JP-Ellis/borrow-checkerdocs(bc-cli): drop the other subcommand lists1w
JP-Ellis/borrow-checkerfix(bc-cli): tell a new key from one already there1w
JP-Ellis/borrow-checkerfix(bc-core): say whether register added the key1w
JP-Ellis/borrow-checkerfix(bc-core): count inside the delete transaction1w
JP-Ellis/borrow-checkerfix(bc-core): name the mismatch count once1w
Latest issues & PRs
JP-Ellis/borrow-checker[PR · open]
docs: record six rules learned the hard way2hJP-Ellis/borrow-checker[issue · open]
bc-seed: seeded payees name real businesses3hJP-Ellis/borrow-checker[issue · open]
bc-ui: the palette advertises a payee search it cannot run3hJP-Ellis/borrow-checker[PR · merged]
chore(mise): drop global-only shell settings5hSelected 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