BREAKING — first lead seat: a team of three engineers, owning architecture decisions, code review, and sprint planning.

Backend ingestion services (FastAPI, PostgreSQL) processing 25,000+ sensor readings per day with automatic validation and anomaly flagging.

Integrated PurpleAir behind its own router — 11 endpoints ingesting third-party stations alongside the in-house network, widening coverage across the city without new hardware.

83 REST endpoints across 13 routers — auth, devices, readings, analytics, admin, PurpleAir — with JWT role guards, token blacklist, account lockout, and per-IP rate limits.

Real-time dashboard (React, WebSockets, Recharts, Leaflet) visualising live readings across stations with sub-second update latency.

Releases: Dockerized services behind Caddy TLS, deployed to a self-managed Ubuntu VPS by GitHub Actions with automated tests and zero downtime.

Production full-stack applications with Angular, Django REST Framework, and PostgreSQL.

An automated document-summarisation feature on the OpenAI API — prompt design, streaming responses, and token-cost optimisation.

Cut average API response time with Redis caching, database indexing, and query optimisation.

Shipped three production features per sprint, working with designers and product managers across three time zones.

BREAKING — student to shipping engineer. Work now runs against client deadlines.

Full-stack web applications built and deployed with React, NestJS, PostgreSQL, and MongoDB.

RESTful APIs with JWT authentication and role-based access control across client projects.