5G Core System Engineering Lead

We are looking for a 5G Core System Engineering Lead to own end-to-end system design and interface definition for E-Space's satellite 5G Core network. This role sits at the architecture level: you will decompose requirements across the full core service chain, define interfaces and information flows at every boundary, and drive the trade-offs that are unique to a satellite operator.

What You Will Do

Own end-to-end 5G Core system architecture, define interface specifications, drive system-level trade-off analyses, and lead call-flow design for key 5G Core procedures in the satellite context.

Why It Might Be a Fit

We want you to make the most of your journey at E-Space. That’s why we support and invest in the physical, emotional and financial well-being of our team members and their families. Some of what you can expect when working at E-Space: an opportunity to really make a difference, sustainability at our core, fair and honest workplace, innovative thinking is encouraged, competitive salaries, continuous learning and development, health and wellness care options, financial solutions for the future, optional legal services (US only), paid holidays, paid time off.

Requirements

• Bachelor's or Master's degree in Electrical Engineering, Computer Science, or a related field
• 12+ years in system or network engineering, with deep focus on 5G SA Core or LTE EPC architecture
• Strong command of 3GPP 5G Core architecture: NAS protocols, SBI service interfaces, N-reference points, and session, policy, and charging management across AMF, SMF, UPF, UDM, PCF, AUSF, and CHF
• Demonstrated experience authoring interface specifications, system requirement documents, and trade study reports in a multi-team engineering environment
• Understanding of how network-layer constraints propagate into core protocol behaviour and how to address them through parameter tuning or architectural adaptation
• Experience with charging and policy architecture
• Proven ability to drive architecture decisions to closure across software, platform, and back-end engineering teams
• Strong written communication; able to produce precise interface specifications and trade-off analyses that stand on their own

Benefits

• Competitive salaries
• Continuous learning and development
• Health and wellness care options
• Financial solutions for the future
• Optional legal services (US only)
• Paid holidays
• Paid time off