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Josué Carvalho

Teddy Open Finance

Payroll lending and Open Finance

Payroll-deductible lending and Open Finance microservices, with integrations with Banco Pan, BRB, Caixa and Semear.

Context

At Teddy Open Finance, I worked on the microservices that connect the payroll-deductible lending platform to partner banks.

Problem

Each bank has its own API, its own rules and its own windows of instability. A silent failure becomes a stalled contract or a customer without credit.

What I did

I built and maintained integrations with Banco Pan, BRB, Caixa and Semear in NestJS and Python, with messaging on RabbitMQ. I implemented observability with Datadog and Grafana, helped define standards for new services and improved the CI/CD pipelines.

Outcome

Incidents started being analyzed faster and with better traceability, and deploys became less prone to failure.

Stack

  • NestJS
  • Python
  • RabbitMQ
  • PostgreSQL
  • MongoDB
  • Redis
  • AWS
  • Datadog
  • Grafana