Java Back-End Developer Mid | Remote

Description

. **Responsibilities and Assignments** * Work on projects developing and evolving technological solutions for the financial sector; * Participate in building and maintaining critical business systems; * Develop and maintain integrations between services and processing of financial operations; * Contribute to initiatives focused on scalability, performance, and platform reliability; * Develop REST APIs using Java and Spring Boot; * Implement business rules for financial transfers and account movements; * Model and persist data using relational databases and Spring Data JPA; * Ensure transactional consistency and concurrency handling in financial operations; * Implement notifications after completed transfers; * Develop unit tests and document APIs using Swagger; * Apply best practices in architecture, code versioning, and technical documentation. **Requirements and Qualifications** * Experience developing technological solutions for the financial sector; * Knowledge of transactional control, including pessimistic and/or optimistic locking; * Knowledge of idempotency, rollback, and failure handling; * Experience with messaging services; * Knowledge of object-oriented architecture; * Familiarity with distributed consistency patterns such as SAGA; * Experience with relational databases and Spring Data JPA; * Knowledge of developing REST APIs with Java and Spring Boot; * Experience with unit testing and API documentation (Swagger); * Knowledge of best practices in software architecture, security, resilience, observability, and code quality. Compass UOL is a global firm and part of the AI Revolution Company, together transforming organizations using Artificial Intelligence, Generative AI, and other of today’s most advanced technologies. We equip our team with proprietary and external AI\-driven tools to design and build digital\-native platforms, integrating cutting\-edge technologies and enabling companies to innovate, transform their businesses, and drive success in their markets. To achieve this, we attract and develop the best talent, creating opportunities that enhance people’s lives and highlight the positive impact of disruptive technologies. We empower borderless talent and promote knowledge and opportunities in the latest market trends, driving significant personal and professional growth. **Join us and be part of the AI\-driven revolution.**