Matheus Arruda

Contributed to the registration team supporting critical systems that impact services like PIX for Itaú, the largest bank in Latin America with over 98 million customers. Participated in the migration of a critical system with an average throughput of 4,000 TPS (transactions per second); the migration was executed flawlessly with zero customer impact during the cutover.

Sole senior engineer and team leader, responsible for guiding the team and driving technical decisions. Led the migration of the legacy FGTS loan system to AWS, including rearchitecting the system with updated technologies for improved scalability and reliability.

Took part in the migration of Banco do Brasil’s intranet from Java 7 to a modern stack using Node.js and Angular, improving maintainability and scalability. Developed critical features including a news portal, document management system with approval workflows, service sectorization, and feature toggles to enable gradual releases.

Contributed to the digital identity and fraud prevention solutions of IDwall, one of Brazil’s fastest-growing tech companies. Focused on implementing unit tests and data validation strategies to ensure the accuracy and resilience of automated background check workflows.

Participated in the full-cycle development of a health insurance platform for Unimed, the largest health plan operator in Brazil, designed to support policy and payment processing for over 6 million users. Worked as a full-stack developer, implementing key features for policy registration, insurance issuance, and boleto (payment slip) generation.

Developed internal backend applications in Java, replacing manual spreadsheets and optimizing administrative and production routines. Managed local servers and databases (PostgreSQL, Oracle 11G) to support analytics and BI using Power BI dashboards.

Completed a Bachelor of Science in Information Technology. The curriculum covered various aspects of IT, preparing for a career in software development and system management.