Senior Java Developer

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 Developer based in Brazil. This is a senior engineering opportunity focused on building scalable, reliable, and high-performance backend systems for a large-scale digital commerce platform. You will contribute to distributed systems that support millions of customers and substantial traffic volumes. The role combines hands-on Java development with system architecture, cloud-native technologies, and event-driven design. You will help shape technical solutions while contributing to availability, performance, resilience, and operational excellence. Working closely with cross-functional engineering teams, you will help solve complex production challenges and continuously improve the platform. The environment encourages technical ownership, collaboration, modern engineering practices, and ongoing professional growth. This is a full-time remote opportunity for candidates based in Brazil.

As a Senior Java Developer, you will design and develop robust backend solutions while contributing to the scalability, reliability, and performance of a customer-facing digital platform. You will collaborate across engineering and technical teams to deliver high-quality systems and continuously improve development and operational practices. Design, develop, and implement large-scale distributed systems capable of handling substantial data volumes and traffic. Build scalable, fault-tolerant, and low-latency backend services using Java and Spring Boot. Design and implement APIs and event-driven solutions supporting reliable system communication. Develop and maintain cloud-native backend services with a focus on scalability, availability, and performance. Diagnose and resolve complex production issues across application, service, infrastructure, and integration layers. Develop and execute unit, API, regression, and performance tests to ensure system quality and reliability. Collaborate with cross-functional engineering teams to investigate incidents and deliver rapid, effective resolutions. Participate in architecture discussions and contribute to engineering standards, best practices, and technical decisions. Optimize system performance, scalability, availability, and operational efficiency. Contribute to continuous improvements across CI/CD pipelines, deployment processes, and engineering workflows. Work with event streaming technologies and distributed data processing patterns. Help identify opportunities to improve system resilience, maintainability, and overall customer experience. Requirements: The ideal candidate is an experienced backend engineer with a strong foundation in Java and distributed systems. You should be comfortable working on high-scale platforms, solving complex technical problems, contributing to architecture decisions, and collaborating effectively within international engineering teams. 7+ years of professional software development experience. Strong proficiency in Java and Spring Boot. Hands-on experience designing and deploying scalable, highly available distributed systems. Strong understanding of event-driven architectures and experience with Kafka or other event streaming technologies. Experience working with AWS and EKS or comparable cloud and container orchestration environments. Strong knowledge of CI/CD pipelines and related development and deployment tools. Experience working with both SQL and NoSQL databases. Familiarity with cloud platforms such as AWS, Azure, or Google Cloud. Strong understanding of scalability, fault tolerance, availability, performance, and reliability principles. Strong analytical and problem-solving skills, with the ability to troubleshoot complex production issues. Experience designing and implementing APIs and backend services. Excellent communication and collaboration skills. Ability to work effectively in a remote and international team environment. Advanced English proficiency at C1 level or higher. Benefits: Full-time remote position based in Brazil. Opportunity to work on a large-scale international e-commerce platform. Exposure to modern cloud-native technologies and distributed systems. Opportunity to influence architectural decisions and engineering best practices. Work with challenging, high-traffic systems focused on scalability, reliability, and performance. Collaborative international environment with experienced technical teams. Opportunities for professional development and continuous learning. Flexible remote-first working environment. Exposure to event-driven architectures, cloud technologies, CI/CD, and modern backend engineering practices.

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