Experience
Stepped back into a hands-on IC role to pursue a long-standing interest in developer infrastructure — core contributor to Inngest's durable-execution engine (Go), TypeScript SDK, and the cloud platform that vendors both.
- Root-caused a distributed race between HTTP-timeout requeues and in-flight checkpoints that caused customer functions to silently run twice; designed a GenerationID fencing protocol across the Go executor and TypeScript SDK to guarantee exactly-once delivery.
- Designed and shipped defer(), a new durable-execution primitive for typed, context-aware follow-up functions (e.g., a signup that reliably triggers a follow-up days later) — new executor opcodes, Postgres/SQLite migrations, and the GraphQL API/dashboard surfacing parent-child run linkage.
- Built SSE-based durable streaming for the TypeScript SDK's Durable Endpoints, enabling long-lived, resumable step output for real-time function delivery — the SDK's largest single-author feature to date.
- Owned OpenTelemetry tracing end-to-end: userland span propagation through the executor, deterministic cross-language span IDs, and the GA rollout of OTel export to every customer account.
- Consolidated three competing SDK execution engines into one, flipped SDK defaults (cloud-mode serving, optimized parallelism) to remove production footguns, and built the cloud dashboard's Scoring feature end-to-end (GraphQL schema, resolvers, SQL query layer) for AI/eval data.
- Grew engineering from 2 to as many as 20 (including contractors) at an early-stage startup iterating rapidly toward product-market fit — partnered directly with the executive team on requirements gathering and roadmap while personally shipping core systems.
- Built and owned a custom Rails app ingesting high school sports stats from dozens of disparate sources, feeding proprietary ranking and rating algorithms.
- Shipped LLM-powered tooling — automatic backlinking, related-story surfacing — that helped journalists draft stories faster.
- Mentored engineers and led cross-functional project execution, including goal-setting and performance management.
Owned backend checkout systems for the Tuft & Needle, Serta, and Beautyrest e-commerce sites and retail stores. Improved response time on a critical endpoint, driving measurable revenue gains, and tightened a third-party integration to cut service interruptions.
Led development of the Ruby on Rails/GraphQL/React platform used by high school athletic directors, coaches, and fans nationwide, owning product architecture and a team of contractors.
Grew from junior developer to manager building the Ruby APIs and React front end tens of thousands of educators use daily.