Core Engineer

Anywhere (Remote)Full-time2026-10-01 → 2026-10-07

Core

Troubleshoot real network issues across 3G, 4G, and 5G Standalone, own tickets end-to-end, and lead integrations on a live production mobile core infrastructure.

Role type

Senior IC Core Network Engineer

Builds

Live mobile core infrastructure for global roaming and MVNO operations

Domain

Telecommunications / Mobile Core Networking

Required skills

MNO/MVNO architecture, 3GPP standards (2G/3G/4G/5G), GTP-C/GTP-U, CUPS bearer lifecycle, Diameter & Radius flows, 5G-SA architecture (AMF/SMF/UPF/NRF/PCF), GRX routing, IPX interconnect, roaming procedures (IR.21), PGW configuration, PCRF policy management, GTP Proxy, monitoring tools, Python scripting

Preferred skills

None stated (via careerplan.io/jobs/46-00E-F5-D6D-27-30C-core-engineer)

Technologies

3GPP, GTP, Diameter, Radius, 5G-SA, GRX, IPX, Python

Responsibilities

Troubleshoot live network incidents across 3G/4G/5G, manage end-to-end ticket ownership, lead network element integrations, perform hands-on configuration and troubleshooting of PGW/PCRF/GTP Proxy/Diameter/Radius components, work under pressure during live incidents, perform 24x7 on-call duty

Seniority

Senior, hands-on IC