Desenvolvedor Java Sênior

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Desenvolvedor Java Sênior based in Brazil.

This is a senior engineering opportunity focused on building, evolving, and sustaining critical, high-scale systems.

You will work on highly available, low-latency microservices supporting large volumes of concurrent users.

The role combines hands-on software development with technical leadership and architectural decision-making.

You will help define scalable solutions, modernize legacy systems, and drive engineering best practices across the team.

A strong focus is placed on automated testing, resilience, observability, performance, and clean software design.

You will collaborate within an Agile and DevOps environment, contributing to CI/CD pipelines and cloud-native platforms.

The position offers the opportunity to make a meaningful impact on complex systems while helping other developers grow technically.

Accountabilities:

• Develop, maintain, and evolve highly available, low-latency microservices capable of supporting significant numbers of concurrent users, while ensuring reliability and scalability.
• Provide technical leadership to developers through knowledge sharing, technical guidance, mentoring, and rigorous code reviews.
• Design and define solution architectures, integration strategies, technical standards, and appropriate technology choices for complex engineering challenges.
• Drive software quality and resilience by promoting automated unit, integration, and contract testing, as well as Clean Code, SOLID principles, and established Design Patterns.
• Monitor application health and proactively identify performance bottlenecks, implementing optimizations and continuous improvements to reliability and efficiency.
• Contribute to the evolution and modernization of the technology landscape by planning and supporting the migration of legacy systems or monolithic applications toward modern, decoupled microservices.
• Participate actively in Agile ceremonies, technical refinements, effort estimation, and engineering discussions, while supporting CI/CD pipelines in AWS and Kubernetes environments.

Requirements:

• Proven professional experience in software development with strong expertise in the Java ecosystem and experience working on complex, high-scale applications.
• Deep knowledge of Java 21+, including object-oriented programming, concurrency, multithreading, and modern Java capabilities.
• Solid experience with Spring Boot and Spring Data for developing production-grade applications and services.
• Practical experience with event-driven architectures and messaging technologies such as Apache Kafka and AWS SNS/SQS.
• Strong experience with NoSQL databases, particularly MongoDB.
• Advanced experience with automated testing, including unit and integration testing using JUnit and Mockito, as well as tools such as Testcontainers or RestAssured.
• Hands-on experience deploying and operating containerized applications using Docker and Kubernetes, combined with knowledge of AWS cloud environments.
• Experience with application observability and monitoring tools, with the ability to analyze system health, identify issues, and support performance improvements.
• Strong analytical and problem-solving abilities, combined with a collaborative mindset, technical ownership, and the ability to communicate and share knowledge effectively.

Benefits:

• Medical and dental insurance.
• Life insurance.
• “Lado a Lado” program providing legal, social, psychological, and financial support.
• Wellhub membership.
• Benefits card with broad acceptance, including food/meal and mobility or work-from-home allowances, according to the employment contract.
• Extended maternity leave of 6 months.
• Extended paternity leave of 20 days.
• “Novo Ser” program supporting mothers throughout pregnancy and their return from maternity leave.
• Childcare assistance for eligible employees, including fathers with sole or shared custody.
• PPR (Profit Sharing Program), recognizing employee results.
• Remote work arrangement.
• Full-time employment with a bachelor’s degree-level position.