Jul 2023 – Apr 2025 · 1 yr 9 mos · São Paulo, Brazil · Remote

• Migrated 5+ microservices to JDK 21, utilizing automated rewriting libraries, boosting system
• performance and reducing compatibility issues across multiple services.
• Developed and deployed a debt-charging microservice to automate processing and transmission of
• thousands of debtor records daily, reducing manual workload by 80%.
• Created a REST API for generating XLS reports for over 10,000 debtors, saving 15+ hours per week in
• manual reporting and enhancing data accessibility for business teams.
• Optimized backend microservices, improving efficiency and performance through extensive code
• refactoring and utilizing JDK 21 features for better resource management.
• Collaborated closely with DevOps to streamline deployments, ensuring a faster and more reliable
• deployment pipeline for critical financial services.
• Managed architectural decisions to ensure microservices were designed for high availability,
• scalability, and fault tolerance.
• Implemented security best practices for all deployed services, ensuring compliance with financial
• regulations and reducing potential vulnerabilities.

Aug 2022 – Jul 2023 · 11 mos · Sao Paulo

• Restructured billing system flows, reducing production incidents by 30% and enhancing the overall
• reliability of financial transactions.
• Optimized microservices that processed and generated millions of billing records daily, ensuring the
• timely delivery of over 7 files per day to the billing system.
• Improved system performance by leveraging modern architectures, reducing latency and increasing
• the responsiveness of critical billing systems.
• Enhanced system scalability by migrating legacy services to a microservices-based architecture,
• allowing for better resource management and reducing the time required for deployments.
• Implemented robust monitoring and alerting systems using AWS CloudWatch and other tools,
• ensuring quick detection and response to production issues.
• Collaborated with the security team to implement encryption and authentication protocols,
• safeguarding sensitive user data and meeting regulatory requirements.
• Contributed to technical documentation, streamlining the onboarding process for new developers
• and improving knowledge sharing within the team.

May 2021 – Aug 2022 · 1 yr 3 mos · São Paulo, Brazil · Remote

• Migrate from a monolithic system to a microservices architecture, improving scalability and
• reducing deployment times by 40%.
• Developed and deployed AWS Lambda functions, automating business logic and cutting
• infrastructure costs by 15%.
• Designed and provisioned AWS services, including DynamoDB and Lambda, to enable high
• availability and reduce downtime incidents.
• Streamlined business logic and reporting by building automation tools that replaced manual
• processes, resulting in increased operational efficiency.
• Introduced containerization strategies using Docker, ensuring seamless deployments across multiple
• environments.
• Coordinated with the front-end team to implement a seamless integration of backend microservices,
• improving end-user experiences.
• Optimized backend performance by implementing caching and database indexing strategies,
• resulting in a 25% performance improvement.

Oct 2020 – May 2021 · 7 mos · São Paulo, Brazil · Remote

• Maintained and supported legacy systems, delivering dozens of critical hotfixes that reduced
• downtime and ensured business continuity.
• Developed new features to extend system usability, improving the experience for hundreds of daily
• users.
• Optimized front-end/ backend integration, ensuring a seamless and responsive user experience for
• both internal users and clients.
• Built and enhanced internal tools that improved operational efficiency, reducing manual tasks and
• enabling faster decision-making.
• Managed troubleshooting and debugging efforts, identifying and resolving key performance
• bottlenecks in legacy systems.
• Provided technical support to business units, ensuring that user-reported issues were handled
• quickly and efficiently.
• Developed training materials to help new team members integrate into ongoing projects, ensuring a
• smooth onboarding process.
• Collaborated with stakeholders to gather requirements and prioritize tasks, ensuring projects were
• delivered on time and met business objectives.

Feb 2018 – May 2020 · 2 yrs 3 mos · São Paulo, Brazil · On-site

• Built CertDoc, a product designed to reduce paper usage, cutting operational costs by 20% through
• the automation of document processing.
• Enhanced backend processes by developing Spring Boot microservices that were integrated with
• Angular and JSF frontends for improved user interactions.
• Led the transition from monolithic to microservices architecture, enabling the company to scale
• operations while reducing downtime during deployments.
• Implemented secure document storage solutions, ensuring that sensitive client data was stored in
• compliance with industry regulations.
• Improved performance by optimizing database queries and refactoring legacy code, which led to a
• 35% increase in data processing speed.

Jan 2016 – Jan 2019 · 3 yrs · São Paulo, Brazil · Remote

• Custom Design: I create visually appealing and fully customized websites aligned with each client's unique identity.
• Responsive Development: I ensure that websites are accessible on mobile devices, providing a seamless experience on any screen.
• Performance Optimization: I employ the latest optimization practices to ensure websites are fast, efficient, and search engine-friendly.
• Integration of Modern Technologies: I incorporate the latest web trends and technologies to ensure websites are at the forefront of innovation.
• Continuous Maintenance: I offer ongoing support services and updates, ensuring that websites are always running smoothly.