5G NTN Test Engineer

Aerospacelab; Toulouse; On-site; EUR 60,000 - 90,000; Full time

Job summary

Aerospacelab is advancing the future of space-enabled 5G connectivity from its Toulouse offices. This role focuses on analyzing and evolving 3GPP standards for Non-Terrestrial Networks, ensuring robust test coverage, and building a scalable test bed for satellite-based deployments.

You will work hands-on with complex systems, automating validation, and collaborating with hardware and software teams in a fast-paced environment to guarantee high-quality, reliable performance.

Qualifications

• Solid understanding of wireless protocols and 5G NR specifications.
• Experience in testing telecom systems, preferably in NTN or satellite contexts.
• Familiarity with test automation frameworks and scripting languages (e.g., Python).
• Strong analytical and troubleshooting skills.

Responsibilities

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

Skills

5G NR

Telecom testing

Test automation (Python)

Analytical skills

Tools

CI/CD tooling

Job description

About Aerospacelab

Our mission is supported by an ambitious vertically integrated approach: design & manufacture of small satellites combined with development of earth observation services.

Since its creation in 2018, the company has already grown substantially. Our team gathers more than 25 engineering expertise, from hardware design to software development & data science.

In 2025, Aerospacelab counts offices in Louvain-la-Neuve (Belgium), Toulouse (France), Lausanne (Switzerland) and US West Coast with more than 350 full-time employees, with the ambition to position itself as the European leader in small satellites.

Your mission

We are building the future of 5G connectivity in space. As part of Aerospacelab, you will play a key role in analyzing and contributing to the evolution of 3GPP standards, with a focus on Non-Terrestrial Networks. Your work will guarantee that our systems perform flawlessly in challenging satellite environments, enabling seamless global connectivity.

You are detail-oriented, methodical, and passionate about quality assurance. You enjoy working hands-on with complex systems and thrive in collaborative, fast-paced environments.

Duties

• Develop and execute test plans for 5G NTN RAN network components
• Build and maintain a state-of-the-art 5G NTN test bed
• Derive and track KPIs to asses solution efficiency and quality
• Conduct functional, performance, and interoperability testing in satellite-based scenarios
• Automate test cases and integrate them into CI/CD pipelines
• Analyze test results, identify issues, and collaborate with development teams to resolve them
• Validate compliance with 3GPP standards and Aerospacelab-specific enhancements
• Benchmark and compare solutions to identify optimal technical approaches

Must have

• Solid understanding of wireless protocols and 5G NR specifications
• Experience in testing telecom systems, preferably in NTN or satellite contexts
• Familiarity with test automation frameworks and scripting languages (e.g., Python)
• Strong analytical and troubleshooting skills

Nice to have

• Exposure to 5G stack development or embedded systems · Experience with UE/core emulators
• Experience with performance testing and network emulation tools
• Knowledge of CI/CD practices and DevOps workflows
• Interest in satellite communications and NTN technologies