Senior Java Developer: Banking Cash Booking & Modernization

emagine; Helsinki; Hybrid; EUR 100,000 - 145,000; Full time

Job summary

emagine's client in the banking sector seeks a Senior Java Developer to modernize pricing and settlement systems in Helsinki. You'll migrate legacy logic to scalable platforms and ensure accurate financial processing.

You will collaborate with stakeholders across product, QA, and infrastructure, design robust solutions, and produce clear technical documentation. Hybrid work with onsite presence is required, with a start date in November 2026 and potential extension.

Qualifications

• Hands-on cash booking flows experience in a financial institution.
• Strong Java, Spring Boot, Hibernate/JPA and SQL skills.
• Experience with ISO 20022 and financial messaging standards.

Responsibilities

• Design, develop, and maintain pricing engine components with migration focus.
• Collaborate with business, product, QA, and infra teams for compliant solutions.
• Produce clear technical documentation and support deployment activities.
• Leverage AI coding tools to accelerate development and testing.

Skills

Cash booking flows

Cross-functional collaboration

AI-assisted development

Stakeholder management

Legacy migration

Tools

Java 8+

Spring Boot

Hibernate/JPA

SQL

Oracle Database

ReactJS

Job description

emagine's client in the banking sector seeks a Senior Java Developer to modernize pricing and settlement systems in Helsinki. You'll migrate legacy logic to scalable platforms and ensure accurate financial processing.

You will collaborate with stakeholders across product, QA, and infrastructure, design robust solutions, and produce clear technical documentation. Hybrid work with onsite presence is required, with a start date in November 2026 and potential extension.