Senior Java Developer – Enterprise Backend & SaaS Integration

A leading organization is seeking an expert developer to lead the design and maintenance of critical backend components and RESTful APIs. This role focuses on delivering robust, scalable, and maintainable solutions for enterprise-grade applications.

• Design and develop backend services and REST APIs using Java and Spring Boot.
• Ensure code quality through the implementation of unit, integration, and performance testing.
• Lead code reviews, promote technical best practices, and mentor junior developers.
• Collaborate with architects and DevOps engineers to define technical solutions aligned with cloud strategy.
• Support deployment, cutover, and hypercare phases to ensure stable release cycles.
• Troubleshoot and resolve complex production issues to maintain system reliability.
• Maintain comprehensive technical documentation for services, configurations, and interfaces.

• You bring 10+ years of experience in backend development with Java.
• You possess 5+ years of architectural experience with microservices.
• You have 5+ years of experience working with the Spring framework and Spring Boot.
• You bring experience with JPA, Hibernate, Maven, and Gradle.
• You have experience designing REST APIs and performing integrations with SaaS solutions.
• You possess experience in automated testing including unit, integration, and performance testing.
• You are collaborative and have experience mentoring team members in a professional environment.
• You are fluent in English with C1 level proficiency.

Nice to Haves

• Start date: 29/06/26
• Duration: until 31/12/26
• Work regime: Full-time
• Working model: Hybrid (minimum 2 days per week onsite)
• Contract: open to both permanent employees and freelancers