This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Java/Kotlin Backend Developer based in Brazil.
This role sits at the core of building and evolving large-scale backend systems powering a highly dynamic digital banking ecosystem. You will be responsible for designing, developing, and maintaining scalable microservices that directly impact millions of users. Working in a modern, cloud-oriented engineering environment, you will contribute across the full software lifecycle—from design and development to deployment, monitoring, and continuous improvement. The position emphasizes high engineering standards, clean architecture, and strong collaboration within cross-functional teams. You will work closely with both internal squads and client stakeholders to deliver robust, secure, and high-performance APIs. This is a highly impactful opportunity for engineers passionate about distributed systems and backend excellence.
Accountabilities:
- Design, develop, and maintain scalable microservices using Java and Kotlin in a distributed architecture environment.
- Ensure high code quality by applying engineering best practices such as TDD, DDD, Clean Code, and Hexagonal Architecture.
- Participate in the full software development lifecycle, including development, testing, deployment, monitoring, and incident resolution.
- Build and maintain unit, functional, and performance tests to ensure system reliability and robustness.
- Instrument applications and monitor system behavior using observability tools such as Grafana and Splunk.
- Collaborate closely with cross-functional teams and stakeholders to design and implement effective technical solutions.
- Manage version control workflows using Git/Git Flow and maintain clear API documentation using Swagger.
- Contribute to debugging, troubleshooting, and continuous improvement of complex backend systems.
Requirements:
- Strong experience in backend development using object-oriented languages, especially Java and Kotlin.
- Proven experience designing and implementing microservices-based architectures.
- Solid understanding of software engineering best practices including TDD, DDD, and Clean Code principles.
- Experience working with both relational and non-relational databases (SQL and NoSQL).
- Strong knowledge of HTTP/HTTPS protocols and API development standards.
- Familiarity with Git workflows and API documentation tools such as Swagger.
- Strong problem-solving skills with the ability to troubleshoot complex distributed systems.
- Excellent communication skills and ability to collaborate effectively in agile teams.
- Nice to have: experience with Spring Boot or Javalin, Docker, Kubernetes, Kafka, cloud platforms such as AWS or Google Cloud, API management tools like Apigee, and Node.js.
Benefits:
- Comprehensive health and dental insurance coverage
- Meal and food allowance support
- Childcare assistance and extended parental leave policies
- Wellness programs and gym partnerships (Wellhub / TotalPass)
- Profit sharing (PLR) and life insurance coverage
- Continuous learning platforms and professional development programs
- Language learning support and access to online education platforms
- Discounts program and employee benefits ecosystem
- Mental, physical, and well-being support platforms
- Inclusive environment with dedicated support for accessibility and employee resource groups