Selected work, plus side projects I built to learn.
A per-vehicle sliding-window rate limiter that shields upstream third-party APIs from misbehaving integrations. Sub-millisecond p99 on the hot path with an atomic check-and-insert in a single Redis round trip. Shipped via a three-stage gated rollout — onboarded every new customer with zero regression to existing integrations and ran for 2+ years.
Consolidated a hardcoded config list duplicated across six services into a single Postgres-backed source of truth — Sequelize models through OAuth middleware up to React hooks, with per-layer caching so the DB hit never lands on the hot path. Eliminated a recurring class of coordinated multi-repo PRs and broke zero in-production integrations.
End-to-end customer analytics pipeline behind a redesigned dashboard — Redshift materialized views, Node aggregation processors with gap-backfilling, a Redis caching layer, and React widgets. Sub-second renders, and the graceful-degradation pattern I introduced (empty-shape defaults per processor) became the team standard so one failing query never takes the whole dashboard down.
An open-source npx CLI and companion web app that encode and decode a cow-themed twist on Morse code.
A mobile mood tracker designed for people with executive dysfunction — daily logs of mood, sleep, caffeine, and energy with a soothing coffee-themed UI and visual insights.
A virtual moderator for the Mafia party game so the moderator can actually play. Built with a remote team — I owned the reusable player-selection component, night-phase screens, and win-state logic.
A 2D platformer built in Unity with original assets in under three weeks. I led creative direction and implemented collision detection, moving platforms, animations, and sound.
A JIRA-style RESTful API for tracking tickets, built to sharpen my vanilla JavaScript and REST design skills. Supports full CRUD with a Mongoose-defined schema.
A concurrent, message-driven resource manager built on the Akka actor framework. I leaned hard on planning and unit tests, and ended up passing 100% of the professor's tests.
