I developed the official Payments bot for both DevRoom and BuildRoom, and contributed to their internal API, built with Spring Boot. This application serves over 5,000 users.

The bot manages all client payments and ensures that both freelancers and DevRoom are paid accordingly. Payments are integrated with Stripe. Once a payment is completed, freelancers can withdraw their balance to a bank, PayPal, or Wise account.

I contributed to multiple internal API features, including creating new endpoints for interacting with the MongoDB database and implementing a security layer using expiring JWT tokens.