This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Sr. Java Developer – Microservices based in Australia. This is a senior backend engineering opportunity focused on building, modernizing, and supporting critical enterprise applications.You will work across Java, Spring Boot, microservices, APIs, cloud technologies, and integration platforms in production environments.The role combines hands-on development with production support, troubleshooting, automation, and continuous improvement.You will help design AWS-ready APIs and integrate modern services with existing legacy systems and enterprise platforms.A key part of the position is ensuring application reliability by diagnosing critical issues and developing practical solutions that protect business continuity.You will also contribute to CI/CD automation across on-premises infrastructure, containers, and AWS environments.The role offers significant technical ownership while working closely with business analysts, project leads, and IT teams.