José Vitor Alves Pignataro

Lead an engineering team of approximately 8 professionals while remaining hands-on in backend design, architecture decisions, code reviews, complex delivery, and production troubleshooting. Design and evolve backend services and integrations using Go, REST APIs, distributed-system patterns, asynchronous processing, Rabbit MQ/Redis queues, workers, retry/backoff, idempotency, and transactional outbox approaches. Define technical solutions with Product and business stakeholders, translating requirements into scalable implementations and communicating trade-offs, risks, complexity, and recommendations to technical and non-technical audiences.

Establish and enforce engineering standards for architecture, secure code review, automated tests, PR quality gates, API documentation, observability, and deployment practices. Drive modernization initiatives from PHP/Laravel and legacy Java Script/Vue systems toward Go services, React frontends, improved data architectures, and consolidated platforms. Build and maintain CI/CD and containerized delivery practices using Docker, Git Hub Actions/Bitbucket Pipelines, cloud infrastructure, and monitoring with Prometheus and Grafana.

Mentor engineers through 1:1s, technical training, architecture discussions, onboarding, code review, and support on complex engineering problems. Use Claude Code and ChatGPT in daily engineering workflows for research, code review, test generation, debugging, documentation, architecture refinement, and productivity automation. Contributed to initiatives that reduced recurring incidents by about 40%, improved service availability by up to 60%, and consolidated four systems into one platform, reducing operational effort by up to 50%.

Coordinated engineering delivery across backend, frontend, integrations, infrastructure, and production support, prioritizing work by customer impact, urgency, risk, complexity, and pipeline volume. Participated in planning, refinement, architecture design, technical decomposition, code reviews, and definition of engineering standards while collaborating closely with Product and business stakeholders.

Led legacy modernization, documentation governance, onboarding, API standards, deployment procedures, and team development through mentoring and technical training.

Built and maintained backend/full-stack applications, REST APIs, integrations, and asynchronous processing supporting business-critical energy-management workflows. Worked with high-volume MySQL/Postgre SQL environments, including data modeling, migrations, indexing, EXPLAIN-based optimization, pagination, transactions, and performance troubleshooting.

Contributed to automated testing, CI/CD, production deployments, architectural decisions, code reviews, technical documentation, and process automation/RPA.

Performed web application and infrastructure penetration testing, vulnerability analysis, and remediation support for engineering teams. Configured security monitoring solutions and developed internal security-awareness initiatives, applying OWASP and secure-development principles. go Flux

Developed backend and frontend applications, RPAs, business-process automations, system integrations, and database-backed internal solutions. Maintained, documented, and refactored legacy software while applying secure-development practices and supporting security assessments of new applications.