5GC L3 Support Engineer

Fidel Consulting KK • Tokyo , Tokyo , Japan • Posted June 02, 2026

Location Tokyo , Tokyo
Job Type Full-time
Category other-general
Posted June 02, 2026

Appealing points: 


Opportunity to work as an L3 Support Engineer/SME in a large-scale telecom network with deep involvement in advanced 5G Core technologies such as AMF, SMF, and UPF
Hands-on experience with cloud-native platforms like Kubernetes and advanced packet-level troubleshooting using Wireshark and Tcpdump
Ability to contribute to automation initiatives using Python, Go, and CI/CD pipelines while also taking leadership in OJT and knowledge transfer for L1/L2 engineers


Annual Salary: 10 Million yen and above

Job Qualification: 


Mandatory Experience ( must-have)


Total Telecom Experience: 10+ Years
NOC/Operations Experience: 5+ Years in NOC Operations OR 2+ Years in NOC Management.
Core Role: Must have worked as an L3 Support Engineer or Subject Matter Expert (SME) in a large-scale Telecom network.
Key Soft Skill: Experience in Knowledge Transfer ...

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