Mobile Core Network Engineer
Core
Own the infrastructure powering Telnyx's global mobile core network, ensuring high availability, scalability, and reliability of wireless platform services.
Role type
Senior IC mobile core network engineer
Builds
Global mobile core network services (PGWs, DRAs, GTP proxies, HSS, STPs) and automation pipelines
Domain
Telecommunications / Mobile Core Networking
Deliverable
production ML models | product features | dashboards & analysis | infrastructure
Required skills
3GPP EPC architecture, mobile core network operations, IP routing, Linux system administration, infrastructure automation, containerized environments, monitoring stacks, cloud infrastructure
Preferred skills
Diameter Routing Agents, GTP proxy platforms, multi-IMSI SIM architectures, VoLTE/IMS, roaming models, IPX/GRX peering, network automation tooling, Elixir/Go/Python
Technologies
Ansible, Terraform, Docker, Kubernetes, Prometheus, Grafana, Alertmanager, AWS, tcpdump, tshark, freeDiameter, Netbox, NAPALM
Responsibilities
Deliver and maintain core network services across global datacenters; Design redundancy patterns and drive service localisation; Manage GTP proxy fleet and DRA infrastructure; Build and maintain Ansible playbooks and CI/CD pipelines; Operate and evolve the signalling plane; Build dashboards and alerting for observability
Seniority
Senior, hands-on IC
