Gabriel Rosa

I've built and operated API platforms for Atos, supporting client provisioning, resource management, and operational workflows across enterprise environments. My work spans Ruby on Rails, Go, Java, Python, and Node.js services, with a focus on versioned REST APIs, webhooks, SDK compatibility, and resilient integrations.

At Atos, I reduced production incident detection time by roughly 35%, improved selected asynchronous operations by 40%, cut high-traffic API response times by 25–40%, and helped achieve a 30% reduction in p95 latency through a Ruby on Rails and Go hybrid architecture.

Previously, I built backend systems for CRM PipeRun, COWMED, and custom business platforms at AVMB Soluções em TI. I modernize legacy workflows into service-oriented architectures, optimize relational data access, and build background processing, authentication, authorization, and observability into services from the start.

I've worked across financial services, telecom, CRM, and operational data platforms, and I enjoy translating developer-facing requirements into dependable APIs and phased delivery plans. I also mentor junior developers in clean code, API design, debugging, and production troubleshooting.