(Senior) Engineer, 5G NTN Integration & Verification, meoSphere

Key Responsibilities

• Review 5G gNB software stack capabilities and define a Delta Test Plan, adapting 3GPP terrestrial test cases to the specific constraints and behaviours of NTN systems.
• Define and execute integration, verification, and interoperability test campaigns for the gNB stack running on OBP hardware.
• Commission and operate test benches, including UE emulators and channel simulators, representative of MEO propagation conditions.
• Perform advanced troubleshooting and root-cause analysis of L2/L3 protocol failures observed in laboratory and live-network-like environments.
• Validate RRM and handover logic under MEO dynamics, including analysis of RRC and SDAP timing behaviour using protocol traces.
• Contribute to the maturation of 5G-NTN verification methodologies, bridging standards intent and real payload behaviour.

Competencies, Qualifications & Experience

• Degree in Aerospace Engineering, Electrical Engineering, Mechanical Engineering, Telecommunications, Physics, or a related field.
• Deep, hands-on expertise of 5G NR signalling, including L2/L3 protocols (RRC, SDAP, PDCP, MAC), with the ability to dive into raw protocol traces and extract clear, actionable insights.
• Strong architectural understanding of 5G systems, spanning SA/NSA deployments and Cloud RAN / vRAN concepts, and how these paradigms translate into non-terrestrial network environments.
• Proven experience working with 5G-NTN technologies, including a solid grasp of how latency, Doppler, and propagation dynamics fundamentally shape system behaviour.
• Demonstrated ownership of integration, verification, and interoperability test strategies, including the adaptation of 3GPP terrestrial test cases to the realities of space-based systems.
• Hands-on experience building, commissioning, and operating realistic test environments, using UE emulators and channel simulators to validate system behaviour end-to-end.
• Strong troubleshooting mindset, with a track record of root-cause analysis on complex, multi-layer issues in lab or live-network-like conditions.
• Practical expertise with RF test equipment (e.g. Keysight, Rohde & Schwarz) and protocol analysis tools such as Wireshark, applied in real integration and verification campaigns.
• Prior involvement in 4G/5G RAN rollout, integration, or verification, bringing a system-level perspective rather than a siloed component view.

Nice to Have

• Experience working on spaceborne or embedded processing platforms, where performance, determinism, and hardware constraints are first-order design drivers.
• Exposure to MEO or LEO satellite systems, or hands-on experience extending terrestrial communication technologies into non-terrestrial domains.
• Background in early-stage system bring-up, where specifications are evolving and engineering judgment bridges the gap between standards and reality.
• Comfort operating in high-performance, multidisciplinary teams, collaborating across payload, RF, hardware, and system engineering boundaries.

Other Key Requirements

• Eligibility for ESA/EU/NATO/National SECRET personnel security clearances. Candidates must be prepared to undergo a security clearance procedure, as this position may require holding such clearance, is considered an asset.
• Willing to work at least 60% onsite from office
• Able to travel nationally & internationally