EpinForce

A digital goods commerce platform at ITSUA. The central problem was the third-party supplier API: rate-limited and occasionally slow, which would block user-facing purchase flows if called synchronously.

Built the purchase pipeline around BullMQ: orders enter a queue on checkout, a worker processes them against the supplier with retry logic, each purchase tracked through explicit status states. Email notifications fire on every state change so customers aren’t left wondering.

Also worked through the existing issue backlog and built out internal tooling.