Robert DeLanghe
Senior Software Engineer — Senior software engineer. I ship systems where agents write the code — and I built the tooling to trust them in production.
Brooklyn · Aura · Recurse Center · Bennington · GitHub · Writing · bounded.tools · cv@robertdelanghe.dev
Download PDF ↓At Aura I ship agent-authored delivery in production. The instinct behind it is old — make invalid states unrepresentable, push correctness into the type system until violations can't compile — and agents are just where it turned urgent: orgs want them shipping like senior engineers and give them none of the safety rails. So I built the rails — a contract-and-validation layer where every privileged effect is bound to a signed owner, enforced in CI. The harder, general version is out in the open, in prx and the bounded-systems libraries.
Skills
TypeScript · Systems architecture · Rust · Python · Node · Postgres · Docker · AWS · CI/CD & provenance · Nix · Agent-authored delivery · Capability-based security · Access control
Experience
- Architected the contract-and-validation layer replacing Aura's spreadsheet-driven supply plan (the system behind inventory-purchasing): a compile-and-publish model where one source of truth generates every downstream surface — schemas, docs, tests, agent context — CI drift-gated so nothing falls out of sync.
- Made the pipeline auditable by construction across 130+ components — provenance and contract checks gating every output, sign-off bound to an owner-role enforced in CI rather than to individuals.
- Drove it as agent-authored delivery: every change moves through one auditable pipeline to a reviewed PR, applying the same provenance-and-contract discipline to the agents' own output.
- Built static-analysis gating into the PR pipeline — blocking defects before merge, cutting critical bugs ~20% and high-priority issues ~25% across a 20-engineer team.
- Shipped the frontend platform behind it — a design system (−30% task lead time), a dashboard framework (widget builds a week → a day), and pagination/perf work (page loads ~30s → near-instant).
- Shipped end-to-end across three orgs — a CRM + Square-API ETL (−80% payment-tracking, P&L across 200+ events), just-in-time production automation (shipping 7 days → 2), and a content pipeline (−70% curation across 1000+ articles).
- Algebraic data types, typeclasses, and type-driven design — the same instinct now applied to security seams: invalid states unrepresentable, sign-off un-forgeable.