At Prime System, I built a multi-channel e-commerce operations system for inventory, orders, shipping, and accounting with NestJS and PostgreSQL. It’s been in production since August 2026, and importing noon and Amazon settlement reports replaced hours of daily manual reconciliation.
At HOLO, I built REST API endpoints with NestJS, Express, and PostgreSQL, tested them with Jest and Supertest, and fixed slow PostgreSQL queries. I also worked with senior engineers through code reviews and Agile sprints.
I’ve contributed merged fixes and documentation to NestJS and Fastify. In my projects, I’ve built DiskKV, a Go key-value storage engine with crash-safe recovery, and an HTTP reverse proxy and load balancer using Node.js core modules.
