Built automation infrastructure across 10+ client codebases — a file-locking system to safely parallelize 200+ tests, account lifecycle tooling that cut 4+ hours of recurring manual work, and a flakiness-detection pipeline that drove failure rates to near-zero.

Led a 5-person team building a student/TA ticketing and office-hours platform, architecting a single-deployment React/Express structure with JWT-protected, role-based API routes for 100+ students.