5G NTN Test Engineer

About the role

Aerospacelab, which designs and manufactures small satellites and develops earth observation services, is looking for a 5G NTN Test Engineer. The role contributes to the analysis and evolution of 3GPP standards for Non-Terrestrial Networks, ensuring systems perform reliably in satellite environments. The position is based in Belgium and is a permanent contract.

Key responsibilities

• Develop and execute test plans for 5G NTN RAN network components
• Build and maintain a 5G NTN test bed
• Derive and track KPIs to assess solution efficiency and quality
• Run functional, performance and interoperability tests in satellite-based scenarios
• Automate test cases and integrate them into CI/CD pipelines
• Analyze test results, identify issues and work with development teams to fix them
• Validate compliance with 3GPP standards and Aerospacelab-specific enhancements
• Benchmark and compare solutions to find the best technical approaches

Required profile

• Solid understanding of wireless protocols and 5G NR specifications
• Experience testing telecom systems, preferably in NTN or satellite contexts
• Detail-oriented, methodical and quality-focused, enjoying hands-on work with complex systems

Required skills

• Familiarity with test automation frameworks and scripting languages such as Python
• Strong analytical and troubleshooting skills
• Nice to have: exposure to 5G stack development or embedded systems, UE/core emulators, performance testing and network emulation tools, CI/CD and DevOps knowledge, interest in satellite communications

What we offer

• A career path built around your own goals
• Direct impact on the company's growth
• Flat hierarchy and a fast-paced environment
• Flexible ways of working
• A salary package consistent with your experience