Senior Java Backend Developer - Tieto Tech Consulting (m/f/d)

Job Description

Do you have a strong Java Backend Developer background, passion for problem-solving, and want to join one of the largest tech companies in the Nordics? Then this is the role for you!

We are looking for a Senior Java Backend Developer to join Tieto Tech Consulting to support the development and extension of COM5.Mobile, a mature network management and optimization platform used by major telecom operators. The role focuses on backend services, TM Forum APIs, and network-related data models, working with Micronova’s Product Development and Customer Value Teams.

Technology Stack

• Backend: Java 21, Quarkus, REST APIs, JUnit
• Databases: PostgreSQL, Oracle
• Platform and tools: Kubernetes, Jenkins, Git, SonarQube, Jira, Confluence
• Architecture: Microservices and legacy monolith components; strong backend focus
• Frontend: React / TypeScript (minor exposure)
   

Responsibilities

• Design and implement backend services for telecom network management solutions
• Develop and extend TMF-compliant APIs (e.g. TMF‑633, TMF‑639)
• Implement resource inventory and service catalog exposure for external systems
• Work with complex network and OSS data models (slicing, network resources, configuration data)
• Develop microservices using Java 21 and Quarkus
• Integrate services with PostgreSQL and Oracle d