Gabriel Falcão
Senior Software Engineer · Go & Java · Distributed Systems
Rio de Janeiro, Brazil
7+ years building and scaling distributed, cloud-native systems at Latin America's largest tech companies. At Mercado Livre, I engineered a package consolidation engine that cut shipping costs by 20%. At Americanas S.A., I led a monolith-to-microservices migration that reduced price propagation time from 1 hour to under 10 minutes.
Experience
Mercado Livre
Senior Software EngineerJan 2024 – Present
- Built a package consolidation engine in Go that reduced shipping costs by 20%, saving thousands of dollars in its first week.
- Led the end-to-end architectural design and project breakdown of this mission-critical logistics engine using Clean Architecture.
- Mentored junior engineers and standardized a team-wide code review process.
Software EngineerJun 2022 – Jan 2024
- Owned integrations with logistics carriers — configuring, maintaining, and serving as the technical interface between Mercado Livre and external carrier systems.
- Led technical discovery for Cross Border Trade returns, mapping complex third-party logistics systems into a clear implementation roadmap.
Americanas S.A.
Java Software EngineerOct 2021 – May 2022
- Drove migration of a legacy Java monolith to a cloud-native microservices architecture, enabling real-time pricing for the platform and key partners (Google Shopping, Facebook).
- Built core Quarkus microservices on an event-driven AWS stack (SQS, SNS, Lambda) processing millions of daily price updates.
- Cut price propagation time from 1 hour to under 10 minutes — an 80%+ reduction.
Junior Java Software EngineerOct 2020 – Oct 2021
- Delivered features and mentored peers on code quality and testing best practices.
how does a carioca greet you?