Who we are looking for:Someone who will conduct system-level testing to validate software functionality, performance, and compatibility in varied environments. Develop and execute test plans to ensure thorough  coverage of system requirements and features. Perform release verification using both automated and manual testing techniques to confirm product Readiness. Identify, log, and track defects, collaborating with developers for swift resolution. Ensure compliance with organizational quality standards and industry benchmarks. Analyze and report test outcomes, providing actionable insights to stakeholders.   Mandatory competences Proficiency in testing tools and frameworks (e.g., Selenium, JMeter) and knowledge of CI/CD pipelines Strong understanding of system architecture, debugging, and performance assessment methodologies Ability to design and execute end-to-end test scenarios involving policy decision, enforcement, QoS control, charging, and quota management Define and executing functional & non-functional test cases  Troubleshooting & fixing bugs Solid understanding of 4G/5G Policy and Charging Control (PCC) architecture – PCRF/PCF, PCEF/SMF, OCS/CCS, CHF Hands-on experience with Diameter- and HTTP/2-based interfaces used in PCC (e.g., Gx, Gy, Rx, N7, N5, Nchf) Experience with event- and session-based charging flows and validation of real-time charging behavior  Nice to have competences Agile team self-organization & scaled collaboration with others  Communication skills towards stakeholders and other development teams  Strong commitment and customer focus  Organized, solution oriented, passion for details, perseverance  Fast learners and able to work in a fast-paced, dynamic environment   Willing to work in a multi-cultural environment and as part of non-co-located teams   Fluent in English (written and spoken)   Creative and innovative - think out of the box to find new solutions to complex problems   We offer: Career development possibilities  MyBenefit SystemParticipation in international innovative projects  Great working atmosphere  Nordic organization culture and stability Private medical care Group life insurance  Investment fund