Backend Developer (Java & C++)

emagine; Helsinki; Hybrid; EUR 70,000 - 100,000; Full time

Job summary

emagine is seeking a Backend Developer (Java & C++) for a client in Banking & Finance, based in Helsinki, Finland. The role covers full stack lifecycle ownership from integration to testing and deployment, with hybrid work (3 days onsite, 2 days remote).

You will collaborate with stakeholders, build automated credit decisioning solutions, and ensure robust, well-documented software using C++, Java, Spring Boot, and microservices. English fluency required.

Qualifications

• 6+ years of backend development experience.
• Proficient in C++, Java, Spring Boot and microservices.
• Familiarity with Maven, Jenkins, Git and Jira.
• Knowledge of Clean Code principles.
• Experience with Agile development methodologies.
• Fluent in spoken and written English.

Responsibilities

• Take responsibility for the full lifecycle of application development.
• Work on integrations utilizing middle-tier frameworks.
• Perform manual and automated testing.
• Regularly review code, implement improvements, and refactor as necessary.
• Maintain technical documentation.
• Exhibit strong communication skills and cooperate with business to clarify expectations.

Skills

C++

Java

Spring Boot

Microservices

Agile

English (proficiency)

Tools

Maven

Jenkins

Git

Jira

Job description

We are looking for a Backend Developer (Java & C++) to one of our clients within Banking & Finance.

Start date:

2026-10-01

End date:

2027-03-30

Location:

Helsinki, Finland (3 days onsite, 2 days remote)

About the assignment:

We are seeking an experienced Backend Developer with a strong background in C++ and Java FX to contribute to automated credit decisioning solutions. You will join a team responsible for building automated credit decisioning solutions across multiple business lines. The role involves full-stack development lifecycle ownership, from integration work through testing and deployment. You will collaborate closely with business stakeholders to deliver robust, well-documented solutions.

Main Responsibilities:

• Take responsibility for the full lifecycle of application development
• Work on integrations utilizing middle-tier frameworks.
• Perform manual and automated testing
• Regularly review code, implement improvements, and refactor as necessary.
• Maintain technical documentation.
• Exhibit strong communication skills and cooperate with business to clarify expectations

Profile & Qualifications:

• 6+ years of experience as a backend developer.
• Proficient in C++, Springboot, Microservices, and Java.
• Familiarity with Maven, Bamboo, Jenkins, GIT, and Jira.
• Knowledge of Clean Code principles.
• Experience with Agile development methodologies.
• Fluent in spoken and written English.

Required Skills:

• C++
• Java, Spring Boot
• Microservices
• Maven, Jenkins, Git, Jira

Nice to have:

• Experience with automation frameworks: Selenium and Cucumber.
• Knowledge of COBOL, JCL, DB2, VB, and ASP.
• Familiarity with Kubernetes container deployment.
• Proficiency in Finnish, as some code is in Finnish.
• Prior experience in the financial services industry.
• Experience with AI for developing business solutions.