Marco Oliveira

I build backend systems that handle real money at scale. 6+ years of experience in Go, with a track record in fintech and payments infrastructure across major financial institutions in Latin America.

At Itaú/Rede, I contributed to modernizing Brazil's national payment system (SPB) and the transaction processing platform for one of Latin America's largest payment networks. At Klever, I co-designed the core match engine for a crypto exchange processing 1M+ daily order matches with 5K concurrent users and $250K+/day trading volume. I also led a team of 6 building a multi-chain custody system handling 2,000+ on-chain transactions per minute.

Currently at Asap Tech, I architect automated regulatory document generation (CADOC) for credit card issuers with BACEN-validated workflows ensuring 100% compliance accuracy.

Core stack: Go, gRPC, REST, RabbitMQ, Kafka, PostgreSQL, Redis, DynamoDB, Docker, Kubernetes, AWS, GCP, OpenTelemetry, Prometheus, Grafana.

Open to remote opportunities. Portfolio: marcooliveira.dev