Java Backend Developer
Posted 6 Oct 2026
Advertised as “Senior Java Backend Developer - Tieto Tech Consulting (m/f/d)”
BranchFactor Summary
The original posting with the fluff stripped out
- Management level
- Individual contributor
- Employment
- Remote
- Contract
- Full-time
No salary listed for this role.
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 databases
- Support audit and optimization use cases (e.g. slicing audits, discrepancy detection)
- Ensure code quality through unit tests, CI pipelines, and SonarQube
- Collaborate within cross-functional teams using Jira and Confluence
- Communicate in English with product owners, architects, and project leads
Qualifications
- 5+ years professional experience in Java backend development
- Strong experience with REST APIs and service-oriented architectures
- Solid knowledge of SQL and relational databases
- Experience with modern Java frameworks (Quarkus, Spring Boot, similar)
- Familiarity with CI/CD pipelines and code quality tools
- Comfortable working in existing product codebases, not greenfield only
- Fluent English (written and spoken)
Would be an advantage
- Background in telecommunications or network management
- Experience with TM Forum APIs (TMF‑633, TMF‑639 or similar)