Luís Miguel
Ramos Santana

Currently, I am architecting the high-stakes BFF (Backend-for-Frontend) layer for a finantial company that supports a massive $2B bi-weekly deposit volume. My mission revolves around modernizing legacy infrastructure: I led a strategic migration from a monolithic core to a scalable Microservices architecture. By refactoring complex GraphQL queries and implementing a centralized Kong API Gateway, I’ve significantly reduced latency and strengthened system security for mission-critical operations like withdrawals and rollovers.

During my time at OLX, I focused on turning technical performance into direct revenue. I successfully drove a 60% monthly revenue increase by optimizing shipping and delivery features for the platform. Beyond the numbers, I fortified the ecosystem’s resilience to 99.99% uptime by implementing advanced fault-tolerance patterns like Circuit Breakers. I also bridged the gap between Web and Mobile, migrating micro-frontends to Server-Side Rendering (SSR) to ensure a lightning-fast experience for millions of active users.

At Brazil’s leading media and broadcasting group, I engineered high-throughput solutions that contributed to a R$ 72M revenue milestone. I developed a low-latency OpenRTB API in Golang specifically for Connected TV (CTV), handling millions of impressions in real-time. My work also involved architecting a White-Label platform that unified Programmatic Media buying across global giants like Microsoft Xandr and Google Ad Manager. Earlier in my journey at Globo, I specialized in Cloud Infrastructure, where I automated incident lifecycles to reduce MTTA by 67%, ensuring the stability of portals handling 1M concurrent requests per minute.