Job Summary: Senior Java Developer with strategic involvement, technical autonomy, and a focus on quality, scalability, and maintainability of solutions in complex environments. Key Highlights: 1. Strategic and autonomous involvement in architectural decisions 2. Focus on quality, performance, and security for mission-critical applications 3. Collaboration with multidisciplinary teams and continuous system evolution Senior Java Developer With solid experience in corporate systems and complex environments. This professional will play a strategic role, exercising technical autonomy, actively participating in architectural decisions, supporting other developers, and bearing direct responsibility for the quality, scalability, and maintainability of solutions. We seek someone with systemic vision, technical maturity, and the ability to communicate clearly with both technical and non-technical stakeholders, contributing to the continuous evolution of systems. Responsibilities: * Develop, enhance, and maintain mission-critical Java applications, focusing on quality, performance, and security * Independently define and implement technical solutions * Actively contribute to architectural decisions, coding standards definition, and best practices * Conduct code reviews and provide technical support to less experienced developers * Investigate, diagnose, and resolve complex issues in production environments * Ensure standards for scalability, availability, performance, and security * Collaborate with multidisciplinary teams (product, infrastructure, security, and business) Expected Profile: * Hands-on professional with technical maturity for decision-making * Ability to question existing solutions, propose improvements, and substantiate technical arguments * Clear, concise, and collaborative communication * Strong sense of ownership and accountability for production deliverables * Experience with legacy systems and leading secure, incremental system evolution Mandatory Requirements: * Minimum 6 years of Java development experience in production environments * Solid expertise in Java 8+ and the Spring ecosystem (Spring Boot, Spring MVC, Spring Data) * Experience developing REST APIs and maintaining SOAP integrations * Proficiency in relational and NoSQL data modeling, with practical experience in: Oracle, PostgreSQL, MongoDB * Experience with asynchronous messaging (RabbitMQ / AMQ), including failure handling and reprocessing * Consistent use of Git in collaborative environments (code reviews, branching, and merge strategies) * Dependency and build management using Maven * Practical experience in Linux/Unix environments * Ability to analyze legacy code, propose improvements, and perform safe refactorings * Technical English proficiency for reading documentation and written communication Nice-to-Have: * Practical experience with AWS * Experience with: Microservices architecture and High-Availability or High-Volume Data Systems * Experience with Node.js and Angular