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
3906 commits, 541 PRs, and 203 issues across 36 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/borrow-checkerdocs(bc-core): say unvalued spans the carry chain17h
JP-Ellis/borrow-checkertest(bc-cli): cover unvalued in budget status json17h
JP-Ellis/borrow-checkertest(bc-core): cover a chain across tag-filtered reigns18h
JP-Ellis/borrow-checkerdocs(bc-plugins): name BadValue in wit_posting's errors18h
JP-Ellis/dotfilesfeat(nvim): give mini.surround its native `s` prefix20h
JP-Ellis/borrow-checkerfeat(bc-cli): structure other_skips in sync --json20h
Latest issues & PRs
JP-Ellis/borrow-checker[issue · open]
Share one leg parser between bc-cli and bc-ui13hJP-Ellis/dotfiles[PR · merged]
chore: ignore .vscode20hJP-Ellis/dotfiles[PR · merged]
feat(bin): add bot-prs for bulk-merging Renovate and Dependabot PRs20hJP-Ellis/dotfiles[PR · merged]
feat(nvim): type-check Python with ty and dmypy20hSelected 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