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Senior Java Developer – Embedded Banking

Contact

Juho Sopanen

juho.sopanen@witted.com

This is a greenfield opportunity to build distributed, highly available, and high-throughput applications using a modern microservices architecture, following structured project specifications. The assignment is expected to be prolonged beyond the initial 6-month contract.

Responsibilities

  • Service Development: Develop new services and solutions within the
  • Embedded Banking Service Domain.
  • Payment Architecture: Build and maintain scalable, microservices-based payment solutions.
  • Agile Collaboration: Collaborate actively within a Scrum team to design and deliver high-quality software.
  • Tooling Optimization: Leverage AI-assisted development tools (such as GitHub Copilot) to enhance productivity.

Qualifications and technical skills

  • Experience: Minimum 6 years of professional Java software development experience.
  • Architecture: Proven track record of building distributed, highly available, and high-throughput applications using a microservices architecture.
  • Core Tech Stack: Strong proficiency in Java, Spring Framework, Spring Boot, REST APIs, Maven, and JUnit.
  • Databases & Messaging: Practical experience with PostgreSQL and/or Db2, alongside message streaming via Kafka.
  • DevOps & Automation: Hands-on experience with CI/CD pipelines, Jenkins, Docker, Kubernetes, and AI-assisted development tools (e.g., GitHub Copilot).
  • Bonus: Familiarity with Specification-Driven Development (SDD) is highly valued.4)

Summary of the practicalities

  • Project start time: September
  • Project duration: 6 months (until March 7, 2027; high likelihood of extension)
  • Allocation: 100% (Full-time)
  • Location requirements: Helsinki, Finland (Hybrid model: minimum 60% office presence required)
  • Language requirements: Fluent written and spoken English

More information -> Juho_Witted // juho.sopanen@witted.com

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