Luiz Gustavo Ghisi Flores

Contributed to the Pix and Open Finance squad, building and evolving Kotlin-based microservices for Brazil's fintech ecosystem. Applied Domain-Driven Design, event-driven architecture, and the Transactional Outbox pattern to support reliable, decoupled service integrations.

Owned production deployment and release management processes for mission-critical financial services, ensuring reliable and controlled production rollouts. Improved engineering documentation, operational runbooks, and incident response procedures to enhance operational resilience.

Led feature initiatives, including bill payment cashback and benefits automation, on a digital banking platform serving 300,000+ active customers across two engineering squads. Drove architecture decisions, including migration of a Business Rules Engine to Amazon RDS PostgreSQL, and increased benefits processing throughput by 10x.

Maintained and evolved a legacy monolithic application, contributing to its phased migration toward a microservices architecture. Delivered three Spring Boot microservices integrating PostgreSQL, BFF services, and external partners, and built a feature toggle framework with Togglz.

Led development of a scheduled, reactive application built with Spring Scheduled and Spring WebFlux that automatically blocks over 1,000 leaked cards daily, preventing fraud exposure. Mentored a team of three interns, supporting their successful transition into permanent engineering roles.

Bachelor's Degree in Computer Science from UNESC, Criciuma, SC, from January 2020 to January 2022.

Technical Degree in Software Development from CEDUP Abílio Paulo, Criciuma, SC, from January 2018 to July 2019.

Certified as AWS Cloud Practitioner.