Hello, again
I codify contracts between systems for a living, in Rust and Python. I once spent five years chasing where the antimatter went.
Senior software engineer at PactFlow (SmartBear). I help lead the open-source Pact Foundation and maintainpact-python; I also wrote tikz-feynman,rust-skiplist, and more.
Previously: data and cloud engineering at KPMG, and doctoral research in theoretical particle physics.
The year in code
5008 commits, 776 PRs, and 276 issues across 37 repositories.
Most of what I make is open. Each square below is one day of my GitHub contributions over the past year.
Latest commits
JP-Ellis/borrow-checkertest(e2e): wait for the account a spec opens18h
JP-Ellis/borrow-checkertest(plugins): give each test its own temp directory19h
pactflow/pact-cypress-adapterci: dry-run the whole publish on release PRs20h
pactflow/pact-cypress-adapterfix(ci): read npm 12's pack output in check-pack20h
pactflow/pact-cypress-adapterchore(release): v2.0.020h
pactflow/pact-cypress-adaptertest: leave ignoreDefaultBlocklist unset in the example20h
Latest issues & PRs
JP-Ellis/borrow-checker[PR · merged]
test: fix two races behind the lock file PR's CI failures18hJP-Ellis/borrow-checker[PR · merged]
docs: correct lines the round-trip stack made wrong19hJP-Ellis/borrow-checker[issue · open]
Account dashboard shows a hardcoded "last import" card19hpactflow/example-bi-directional-consumer-nock[PR · merged]
chore: modernise to Vite, Vitest, TypeScript and Biome20hSelected projects
pact-pythonOSS · libraryPython bindings for Pact, rebuilt over a Rust FFI core. Downloaded over 1.3 million times a month.↗ github
tikz-feynmanOSS · LaTeXA LaTeX package for typesetting Feynman diagrams with TikZ; adopted across particle physics with 400+ academic citations.↗ github
↗ All projects