S
Saulo Aires
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Senior Software Engineer | Java | Spring Boot | Angular | AWS | TypeScript
Barcelona, Catalonia, Spain
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Senior Java Software EngineerTSystems IberiaMay 2024 - Current (2 years 6 months)- Senior Java Software EngineerOneSource ConsultingOct 2022 - May 2024 (1 year 8 months)Allride Business provides employees with seamless access to shared mobility solutions—such as cars and bicycles—directly at their workplace. Through the Allride app, users can easily register, reserve a vehicle, and use their smartphone as a digital key.
● Designed the core service architecture and domain model for a shared mobility platform enabling smartphone-based vehicle access.
● Produced onboarding materials and comprehensive technical documentation to streamline team integration and ensure consistent development practices.
● Improved scalability and long-term maintainability by aligning system implementation with architectural and performance requirements.
● Successfully delivered the application withi - Senior Java Software EngineerEUROPEAN DYNAMICSApr 2022 - Oct 2022 (7 months)Europass is an EU initiative offering digital tools that enhance learning, career development, and the transparency of skills and qualifications across Europe..
● Contributed to feature development and system maintenance while ensuring high production stability.
● Provided technical guidance and mentorship to junior developers.
● Rapidly assimilated the existing infrastructure and delivered new production-ready services within a short timeframe.
● Played a key role in supporting the smooth transition of the project to a new overseas engineering team. - Software EngineerEUROPEAN DYNAMICSAug 2019 - Mar 2022 (2 years 8 months)Worked on the Mobility Tool migration, a platform used by Erasmus+ beneficiaries for collaboration, management, and reporting of mobility projects across Europe. The overarching goal of the Erasmus+ Programme is to support lifelong learning and the educational, professional, and personal development of individuals across Europe and beyond. (July 2021 – March 2022)
● Participated in the migration of a large monolithic system to a microservices architecture, identifying functional domains suitable for safe decoupling (e.g., email delivery, data integration).
● Rewrote backend services while maintaining all existing API contracts to ensure seamless compatibility with the existing front-end application.
● Contributed to the - Java Software EngineerPagBankJan 2018 - Jul 2019 (1 year 7 months)PagSeguro is a major Brazilian fintech and part of the UOL Group, providing online and mobile payment services for commercial transactions.
● Joined the anti–money laundering team, integrating and consolidating critical transactional data to support external compliance systems and detect fraudulent activity.
● Contributed to the development of a large-scale tax calculation platform used by clients and internal financial operations.
● Designed and implemented a scalable solution capable of processing millions of records without data loss, while ensuring performance and reliability.
● Maintained existing production systems while delivering new features and supporting the rollout of the tax automation tool. - Java developerToptalJun 2016 - Nov 2017 (1 year 6 months)Toptal is an exclusive global network of top-tier freelance software developers, designers, and finance experts. After six months contributing as a freelancer to Intelesense.net through Toptal, I was invited to join the team—a recognition of performance and consistent delivery.
● Participated in weekly sprint planning and architecture discussions to evaluate system status, define upcoming tasks, establish development patterns, and design new features. These meetings were essential for maintaining alignment across a primarily remote engineering team.
● Developed new UI components (widgets/directives), resolved defects, and oc - Software DeveloperPD Case Informatica LTDAAug 2010 - Feb 2015 (4 years 7 months)Credit Portal for Banks Banese and Banpara
Developed a complete credit management portal to replace the banks’ legacy system. The project involved building the entire platform from scratch, including data modeling, data migration, backend APIs, UI, and infrastructure.
● Successfully integrated into the team as a first-time software developer and contributed to delivering the project as expected despite limited prior experience.
● Designed and implemented the new data model, performed data migration from the legacy structure, and developed APIs and UI components end-to-end.
Judiciary Information & Complaint System
Developed a platform for the public justice system to guide citizens and registe
Education
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- Computer Science, Ciência da ComputaçãoUniversidade Federal do MaranhãoJan 2005 - Dec 2011 (7 years)