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
3715 commits, 511 PRs, and 181 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/borrow-checkerfix(bc-core): count inside the delete transaction19h
JP-Ellis/borrow-checkerfix(bc-core): name the mismatch count once1d
JP-Ellis/borrow-checkerfeat(bc-cli): add meta delete1d
JP-Ellis/borrow-checkerfeat(bc-core): delete a metadata key1d
JP-Ellis/borrow-checkerfeat(bc-core): count a metadata key's entries1d
JP-Ellis/borrow-checkerfeat(bc-cli): add meta list --usage1d
Latest issues & PRs
JP-Ellis/borrow-checker[PR · open]
feat(bc-cli): force a type on a new metadata key1dJP-Ellis/borrow-checker[PR · merged]
feat(bc-cli): delete a metadata key1dJP-Ellis/borrow-checker[PR · merged]
feat(bc-core): count metadata key usage1dJP-Ellis/borrow-checker[PR · merged]
chore(deps): batch six Renovate updates1dSelected 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