Consulting Engineer (CE3) – SP Mobility

NEXUS CORPORATION • Tokyo, 13, Japan • Posted June 25, 2026

Location Tokyo, 13
Job Type Full-time
Category other-general
Posted June 25, 2026
We are seeking a Consulting Engineer with expertise in Mobile Core Networks and Cloud-Native Telecom technologies. The role involves designing, deploying, integrating, and supporting mobility solutions for service provider environments. Responsibilities Design, deploy, and support mobile core network solutions. Perform integration, testing, troubleshooting, and operational support activities. Create technical documentation including HLDs, LLDs, MOPs, and implementation plans. Support customer deployments and technical escalations. Required Skills Strong understanding of PACO Architecture and 3GPP Call Flows (4G, CUPS, MME, S/PGW, ePDG). Experience with Cisco PACO, StarOS, CVIM, and vPC-DI. Knowledge of IP Routing & Switching fundamentals, VLANs, routing protocols, vPC, and Linux networking. Experience in Design, Deployment, Integration, Testing, and Troubleshooting (Day 0 / Day 1 activities). Experience preparing HLD, LLD, test plans, MOPs, and implementation documents. Experience with...

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