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
3826 commits, 527 PRs, and 192 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: record discard's refusal and tag reversal23h
JP-Ellis/borrow-checkerdocs(csv): name the Unicode version the Sc table matches23h
JP-Ellis/borrow-checkertest(bc-core): assert DiscardBlocked's message23h
JP-Ellis/borrow-checkerfix(csv): keep a malformed since out of the date check23h
JP-Ellis/borrow-checkerfix(csv): read a denominated cell as an amount only23h
JP-Ellis/borrow-checkerfix(csv): accept a plus sign beside a denomination23h
Latest issues & PRs
JP-Ellis/borrow-checker[issue · open]
budget actuals silently skip postings with no FX rate22hJP-Ellis/borrow-checker[issue · open]
Spin the Beancount and Ledger plugins out into their own repo22hJP-Ellis/borrow-checker[PR · merged]
feat(bc-core): make import discard refuse orphans and reverse tags1dJP-Ellis/borrow-checker[issue · open]
Discard leaves a batch's transaction tags on a surviving transaction1dSelected 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