xxviii · vi · mmxxvi

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

1762 commits, 465 PRs, and 74 issues across 32 repositories.

Jun 2025 — Jun 2026
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

pactflow/example-consumer-webhooklessrefactor: resolve Biome lints under preset:all without blanket overrides2d
JP-Ellis/jpellis.mefix(deps): unblock wasm32 SSR build3d
pact-foundation/pact-clichore(ci): remove release-gate3d
pact-foundation/pact-clidocs: use tags for pact-cli action3d
pact-foundation/pact-clifix(ci): use relative path for local action3d
pact-foundation/pact-clichore(deps): update actions/checkout action to v74d

Latest issues & PRs

pact-foundation/pact-cli[PR · merged]
chore(ci): fix docker publish script2d
pact-foundation/pact-broker-cli[PR · merged]
chore(ci): fix docker publish script2d
pact-foundation/pact-cli[PR · merged]
chore(ci): fix container job permissions2d
pact-foundation/pact-broker-cli[PR · merged]
chore(ci): fix container job permissions2d
Selected 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
rust-skiplistOSS · librarySkiplist data structure implementation in Rust.↗ github
↗ All projects