Senior Java Backend Developer

Description

**Date:** May 13, 2026 **Location:** São Paulo, São Paulo **Company:** B3 S.A. – Brasil, Bolsa, Balcão **About the position** **Position:** Senior Java Backend Developer (Securities Market) **Location:** São Paulo/SP **Publication date:** 05/08/26 **Your day-to-day responsibilities** * Develop and evolve products that comply with Brazilian securities market registration regulations. * Evaluate insurance market products and map new functional and operational requirements. * Support system maintenance, ensuring continuous updates aligned with regulatory authority demands. * Provide Level 3 support, assisting frontline support teams, fixing and validating bugs, and monitoring changes. * Collaborate within a Scrum team, primarily focused on Java backend development. **Area responsibilities** * Develop, maintain, and evolve securities market systems and products. * Ensure solution quality, stability, and regulatory compliance. * Participate in defining technical and functional requirements together with business stakeholders. * Manage and monitor bug fixes, SLAs, and systemic changes. * Contribute to technical innovation and continuous improvement of solutions. **What we expect from you** * Solid expertise in Backend Java 11+. * Proven experience with Spring, Spring Boot, and JPA. * Experience with SQL databases, Oracle, and NoSQL (MongoDB or similar). * Strong background in Cloud Native applications. * Knowledge of containers and orchestration (Docker, Kubernetes, OpenShift). * Experience developing RESTful APIs. * Familiarity with Maven, Flyway, JUnit, and Mockito. * Strong understanding of concurrent programming (threads, thread pools, semaphores, and thread-safe code). * Experience with Git, GitFlow, and Bitbucket. * Hands-on experience with agile methodologies (Scrum/Kanban). * Knowledge of CI/CD and microservices architecture. * Technical English proficiency. **Nice-to-have qualifications** * Knowledge of the Brazilian securities market. * Experience with Jira, Bamboo, and Confluence. * Experience with monitoring and observability tools (New Relic, Grafana). * Azure or AWS certifications. * Initiatives involving AI applied to products. * Experience with Oracle WebLogic Server. * Knowledge of Quarkus. **Nice-to-have qualifications** * Knowledge of the Brazilian securities market. * Experience with Jira, Bitbucket, Bamboo, and Confluence. * Monitoring and observability (New Relic, Grafana). * Azure or AWS certification. * Experience with AI applied to products. * Knowledge of Oracle WebLogic Server or Quarkus. **Benefits** Profit Sharing Program (PLR) **Medical and dental assistance** provided by Bradesco Saúde **Meal allowance** (R$ 600/month) **Food voucher** (R$ 50 per business day) **Transportation voucher** and partial reimbursement for shuttle services **Private pension plan** **Maternity leave** (up to 180 days) and extended paternity leave **Childcare/babysitter allowance** **Wellhub (Gympass)** and **TotalPass**, extended to dependents **Discount club** offering benefits across hundreds of companies **Hybrid work model** and **flexible dress code** (“Dress like yourself!”) **Alura e-learning platform access** **Wellness programs:** personal support, workplace gymnastics, birthday day off, free museum entry, quick massage, and more **Funeral assistance** for you and your pet **Recognition** **Top Employer Brazil** (2020–2025) **Best Companies to Work For** (Financial Institutions, Information Technology, São Paulo, Women, Ethnic-Racial, LGBTI+) Awards reinforcing our commitment to diversity, inclusion, and excellence **Join us in building the future with B3!** We are much more than Brazil’s stock exchange. We are a global reference in financial market infrastructure, with over 100 years of history and direct impact on the country’s sustainable economic development. Here, you’ll find a plural, innovative, and collaborative environment where every individual is the protagonist of their own journey.