5G NTN RAN Software Architect

Aerospacelab; Toulouse; On-site; EUR 90,000 - 130,000; Full time

Job summary

Aerospacelab is building the future of 5G connectivity in space from its Toulouse offices. You will analyze and shape the evolution of 3GPP standards focusing on Non-Terrestrial Networks, ensuring scalable, reliable, and high-performance satellite-based communication systems.

You are a strategic thinker with deep technical depth, capable of designing robust architectures for complex systems. You will collaborate across teams and influence both technical and standardization directions in a global

Qualifications

• Must have proven experience in software architecture for wireless communication systems.
• Strong software engineering skills and experience with distributed systems.
• Ability to translate complex requirements into scalable architectural designs.
• Excellent communication skills.

Responsibilities

• Define and maintain the software architecture for 5G NTN gNB components.
• Ensure compliance with 3GPP standards while optimizing for satellite-specific constraints.
• Collaborate with system engineers, protocol experts, and hardware teams to deliver integrated solutions.
• Evaluate emerging technologies and propose architectural improvements.
• Contribute to internal design reviews and development efforts.

Skills

Software architecture

Wireless communications

Software engineering

Communication

Tools

Embedded systems

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 ensure scalability, reliability, and performance for next-gen satellite-based communication systems.

You are a strategic thinker with strong technical depth, passionate about designing robust architectures for complex systems. You thrive in collaborative environments and enjoy influencing both technical and standardization directions.

Duties

• Define and maintain the software architecture for 5G NTN gNB components
• Ensure compliance with 3GPP standards while optimizing for satellite-specific constraints
• Collaborate with system engineers, protocol experts, and hardware teams to deliver integrated solutions
• Evaluate emerging technologies and propose architectural improvements
• Contribute to internal design reviews and development efforts

Must have

• Proven experience in software architecture for wireless communication systems
• Strong software engineering skills and experience with distributed systems
• Ability to translate complex requirements into scalable architectural designs
• Excellent communication skills

Nice to have

• Experience with 5G NTN concepts and satellite communications
• Understanding of 3GPP 5G NR specifications, especially RAN architecture
• Experience in 5G RAN stack development
• Background in embedded systems or performance-critical networking software