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Senior Core Network Engineer (Open5GS)
London, UK / Remote (UK) · Full-time
The role
You will own end-to-end deployments of our packaged Open5GS core: architecture, hardening, RAN and BSS integration, cutover, and SLA support. You will work directly with client engineering teams — no account-manager relay.
What you bring
Deep 3GPP core knowledge: EPC and 5GC functions, interfaces and call flows (S1/N2/N3, attach, PDU sessions).
Hands-on Open5GS (or srsRAN/Magma/free5GC) experience in lab or production.
Linux, Kubernetes and automation (Ansible/Terraform) fluency.
Comfort in front of clients — you can explain a design decision to a CTO and defend it to their architects.
Nice to have
Contributions to Open5GS or other open-source telecom projects.
Experience with lawful intercept, charging or roaming integrations.
