**We are looking for someone who dares to co-lead with us.** **Responsibilities and duties:** Professional with consistent experience in developing backend solutions using Java, working on medium-to-high complexity projects. Must possess solid knowledge of system architecture, programming best practices, and industry standards, ensuring high-performance, secure, and scalable applications. Responsible for analyzing requirements, understanding business needs, proposing technical solutions, and developing features, integrations, and services. Collaborates closely with Frontend, QA, Infrastructure, and Architecture teams, contributing to the continuous evolution of platforms and processes. Key responsibilities: * Develop, enhance, and maintain Java-based APIs and backend services. * Ensure code quality by applying best practices, automated testing, and code reviews. * Participate in defining architecture and designing technical solutions. * Conduct technical and functional requirements analysis, proposing improvements and viable alternatives. * Investigate and resolve production incidents and issues. * Support deployment and monitoring of applications across production and non-production environments. **Requirements and qualifications:** * Java + Spring Boot * REST APIs, Microservices * Databases: Oracle, MongoDB, SQL Server * Version control tools (Git) * Messaging systems (RabbitMQ) **Desirable:** **Additional information:** * For your health, we offer **medical and dental assistance**, with no copayment for exams or consultations. * Want more wellbeing? We provide **Gympass** and **Zenklub** (with two free sessions per month) to support your physical and mental health. * When hunger strikes, use our meal benefit **Caju** to shop at any supermarket or restaurant. * Love traveling? Here’s **Férias & Co**, a benefit that helps make your dream trip a reality. * Have children? Count on our **childcare allowance**. * Growing family? We offer **MomCare**, a flexible monetary incentive post-maternity leave for new Datunian mothers. * To personalize your workspace, count on our **home office allowance**. * Want to invest in your professional development? We partner with several renowned educational institutions to offer you discounts of up to 70% on **undergraduate**, **postgraduate**, **MBA**, **language**, and many other courses! **To learn about all our benefits, visit the homepage of our careers page.**