Summary
William Sena is a Staff Software Engineer based in São Paulo with two decades of hands-on experience across backend, frontend and DevOps, currently shaping scalable systems at VTEX. He combines deep polyglot backend skills (Go, Elixir, Node.js, Python, Ruby, C#, Java) with platform-minded DevOps expertise (Docker, Kubernetes, AWS, CI/CD) and strong observability practices (OpenTelemetry, tracing). His career spans fintech, e-commerce and enterprise firms—bringing pragmatic architecture, messaging and data-store design (Kafka, RabbitMQ, Postgres, MongoDB, Redis, Cassandra) to bear on complex problems. A longtime tinkerer who built his first pages on Geocities and explored Linux distros in his teens, he also writes technical guides on his blog willsena.dev, signaling a commitment to teaching alongside delivery. Notably, he blends legacy-to-cloud migration experience with a culture-of-platform mindset that helps teams move from ad hoc deploys to containerized, observable production systems.
10 years of coding experience
20 years of employment as a software developer
Engenheiro de Software Information Technology, Engenheiro de Software Information Technology at Veris IBTA
Técnico em Processamento de Dados Information Technology, Técnico em Processamento de Dados Information Technology at Liceu Camilo Castelo Branco
Bacharelado em ciências da computação Information Technology, Bacharelado em ciências da computação Information Technology at Universidade Paulista
Portuguese, English