Do you have a strongJava 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
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)
Understanding of OSS / BSS systems
Knowledge of 3GPP / 5G network concepts (slicing, NRM, gNBs, etc.)
Experience working with network or radio-related data models
Kubernetes / cloud-native experience beyond basic usage
Information about the salary range and the criteria used to determine remuneration will be shared with candidates prior to the interview process and confirmed before an offer is made.
At Tieto, we believe in the power of diversity, equity, and inclusion. We encourage applicants of all backgrounds, genders (m/f/d), and walks of life to join our team, as we believe that this fosters an inspiring workplace and fuels innovation. Our commitment to openness, trust, and diversity is at the heart of our mission to create digital futures that benefit businesses, societies, and humanity.
Diversity, equity and inclusion | Sustainability | Tieto
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- We never ask candidates to pay fees or share financial details during recruitment.
- If you receive a suspicious message claiming to be from Tieto, don't respond — verify it via our official careers site.
- For more information visit Important Advisory Regarding Recruitment Fraud | Tieto Blog
Job description provided by Tieto.
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