Telecom Software Tester (f/m/x)

Overview

We are looking for a Software Tester to join the IP Telephony Applications R&D team.

The SBC solution enables telecom operators to secure and control signaling and media traffic in IP networks. It operates as a Containerized Network Function (CNF), deployed at the edge of access networks, supporting IMS services, roaming, interconnect, and SIP trunking.

You will be part of an international R&D team, working in a modern, cloud-native environment that combines telecommunications, networking, Kubernetes-based platforms, and test automation.

Sii ensures that all employment-related decisions are made solely on the basis of qualifications and competencies. We are committed to equal treatment of all individuals, regardless of any protected characteristics, and promoting a diverse and inclusive work environment.

Your tasks

• Performing integration, functional, and system testing
• Configuring and reconfiguring laboratory environments
• Analyzing issues, troubleshooting problems, and managing defects
• Creating and maintaining test documentation (test plans, strategies, test cases, test scripts)
• Collaborating with multinational R&D and development teams
• Supporting and executing test automation activities using Python and Robot Framework
  
  

• Strong analytical skills with a focus on system robustness validation
• Knowledge of IP networking protocols and architecture
• Hands-on experience in Linux environments
• Coding skills (Python preferred)
• Knowledge of virtualization and cloud infrastructure
• Understanding of Agile testing practices
• Good communication and stakeholder collaboration skills
  
  

• Telecom domain experience, especially IMS
• SIP protocol expertise
• Experience with Kubernetes and cloud-native platforms
• Test automation experience
• Awareness of data governance or security best practices
  
  

Job no. 260115-NS1MM

Benefits For You

Diverse portfolio of clients

Wide portfolio of technologies

Employment stability

Remote work opportunities

Contracts with the biggest brands

Great Place to Work Europe

Many experts you can learn from

Open and accessible management team