Java Backend Engineer (Spring Boot) — Production‑Focused

Studentwork Finland Oy; Helsinki; On-site; EUR 65,000 - 91,000; Full time

Job summary

CGI in Helsinki is seeking experienced Java Developers to join our team responsible for business-critical systems. You’ll be involved across the full application lifecycle, from development and testing to production support and continuous improvements.

You will work in an environment close to production and help ensure reliability for systems used by thousands of users every day. Strong Java, Spring Boot, REST API development and Finnish language skills are essential.

Qualifications

• Strong experience with Java backend development.
• Experience with Spring and/or Spring Boot.
• Experience developing REST APIs.
• Good SQL skills (SQL Server, PostgreSQL, Oracle or similar).
• Experience working with integrations.
• Experience maintaining business-critical production systems.
• Experience with production support, incident management or problem management.
• Experience writing unit, integration and API tests as part of the development process.
• Fluent Finnish language skills.

Responsibilities

• 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.

Skills

Java backend development

Spring/Spring Boot

REST APIs

SQL skills

Integrations

Production systems

Production support

Testing / test automation

Finnish language

Job description

CGI in Helsinki is seeking experienced Java Developers to join our team responsible for business-critical systems. You’ll be involved across the full application lifecycle, from development and testing to production support and continuous improvements.

You will work in an environment close to production and help ensure reliability for systems used by thousands of users every day. Strong Java, Spring Boot, REST API development and Finnish language skills are essential.