Senior Java Developer

About the role

We are looking for a Senior Java Developer to design, build, and maintain highly scalable and secure backend services and APIs for an international engineering team. You will work across Java 11+ and Spring Boot in a microservices architecture, optimize PostgreSQL and MongoDB database schemas, implement automated testing with JUnit and Mockito, and collaborate closely with frontend, product, and QA teams to deliver production-ready features. The role requires expert-level Java knowledge with strong performance optimization and code quality standards.

What you will do

• Design, build, and maintain highly scalable, secure, and reliable backend services and APIs;
• Translate application storyboards and use cases into functional, production-ready applications;
• Identify bottlenecks and bugs, and devise solutions to mitigate and address these issues;
• Collaborate closely with frontend developers, product managers, and QA to deliver end-to-end features;
• Participate in peer code reviews to ensure code quality and adherence to best practices;
• Maintain and optimize database schemas, queries, and overall data architecture.

Must haves

• 4+ years of professional backend software development experience;
• Expert-level knowledge of Java 11+ and deep familiarity with the Spring/Spring Boot ecosystem;
• Broad knowledge of backend architecture, Microservices, and RESTful APIs;
• Superior analytical and problem-solving ability;
• Experience with automated unit testing and test-driven development using JUnit and Mockito;
• Robust understanding of performance issues, computational complexity, memory management, and code optimization;
• Familiarity with industry-standard algorithms, design patterns, and PostgreSQL, MongoDB, or other relational/NoSQL databases;
• Effective communication skills to work with different teams across an international company;
• Upper-intermediate English level.