During August 2025, Fabricio Juliatto developed a Docker-based submission environment for the Rinha Backend 2025 project in the zanfranceschi/rinha-de-backend-2025 repository. He architected a containerized infrastructure featuring a Valkey cache, load balancer, dual gateways, and a dedicated worker, all configured with explicit resource limits and network isolation to support the new vfabricio-greedy participant. His work focused on reproducibility and scalability, enabling rapid onboarding and reliable test execution. Utilizing Docker, system configuration, and networking skills, Fabricio ensured traceable, maintainable deployments. The depth of his contribution is reflected in the robust orchestration and clear commit history established for future development.