Java Developer

Clevry Oy; Helsinki; On-site; EUR 55,000 - 85,000; Full time

Job summary

Clevry Oy in Helsinki is seeking a Java Developer to join our backend team. You will develop backend applications using Java and Spring Boot, design and maintain REST APIs and integrations, and support production systems in a continuous services environment.

Key responsibilities include incident resolution, testing, and collaboration with cross-functional teams. Finnish language skills are required for this role.

Qualifications

• Experience in production environments.
• Strong Java backend development.
• Knowledge of Spring/Spring Boot.
• Experience with REST APIs.
• Strong SQL skills.
• Experience with integrations and production systems maintenance.
• Experience in production support and incident management.
• Testing experience; unit/integration/API testing.
• Finnish language skills required.

Responsibilities

• Develop backend applications using Java and Spring Boot.
• Design and maintain REST APIs and integrations.
• Maintain and enhance production systems.
• Investigate and resolve production incidents and technical issues.
• Write and maintain unit, integration and API tests.
• Contribute to test automation and continuous improvements.
• Work closely with business stakeholders and cross-functional teams.
• Support the full software lifecycle in a continuous services environment.

Skills

Java backend

Spring Boot

REST APIs

SQL

Integrations

Testing

Incident management

Finnish language

Tools

Docker

Kubernetes

CI/CD tools

JUnit

Mockito

Spring Batch

Robot Framework

Splunk

Job description

Java Developer - CGI, Helsinki

What you'll be doing:

• Developing backend applications using Java and Spring Boot
• Designing, implementing and maintaining REST APIs and integrations
• Maintaining and enhancing production systems
• Investigating and resolving production incidents and technical issues
• Writing and maintaining unit, integration and API tests
• Contributing to test automation and continuous improvements
• Working closely with business stakeholders and cross-functional teams
• Supporting the full software lifecycle in a continuous services environment

We are looking for someone with:

• production-environment experience
• strong Java backend development
• Spring/Spring Boot
• REST APIs
• SQL skills
• integrations
• production systems maintenance
• production support and incident management
• testing
• Finnish language skills required

Nice-to-have:

• Robot Framework
• JUnit
• Mockito
• Spring Batch
• CI/CD tools
• Docker and Kubernetes
• Splunk

may be filled before 31.8.2026.