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
3769 commits, 511 PRs, and 189 issues across 35 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: list the four newer account subcommands1d
JP-Ellis/borrow-checkerdocs: list the hard errors that actually exist1d
JP-Ellis/borrow-checkertest(bc-cli): pin the zero-count warnings header1d
JP-Ellis/borrow-checkerfix(bc-cli): give account-state errors exit codes1d
JP-Ellis/borrow-checkerrefactor(bc-core): name cascade and descendants1d
JP-Ellis/borrow-checkerfix(bc-core): key commodity warnings by code too1d
Latest issues & PRs
JP-Ellis/dotfiles[PR · merged]
fix(zsh): restore history search under vi keybindings6hJP-Ellis/borrow-checker[PR · merged]
docs: correct two claims #485 outdated1dJP-Ellis/borrow-checker[issue · open]
opened_on has no event-log provenance1dJP-Ellis/borrow-checker[PR · merged]
feat: enforce account write-time checks1dSelected 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