Led architecture restructuring and FinOps for holding companies; achieved 40% infrastructure cost reduction, managed Kubernetes/GKE clusters, MongoDB sharded, and VoIP workloads, implemented unified observability with Prometheus/Grafana, and automated pipelines with GitLab CI/CD.

Restructured legacy modules of the Vivaintra intranet (PHP 7.3/8.3, Zend) for a major HRTech company, improving performance and maintainability for over 100,000 active users.

Managed technical roadmap and team growth, integrated LangChain/RAG into payments platform, optimized costs by 30% through dynamic scaling, and implemented CI/CD pipelines.

Developed front-end and back-end for payment automations, created AI agents for code review (reducing review time by 50%), and developed cybersecurity dashboards for large-scale enterprise pentesting.

Mentored 6 developers, led complex integrations with ERP systems (TOTVS RM, Protheus), and standardized environments using Docker and CI/CD pipelines.

Developed and integrated REST APIs, managed ETL data pipelines, and automated critical business processes including tax invoice issuance and scheduled triggers.