- Role: 5GC L3 Support Engineer
- Department: Core Network Operations (PACO – L3)
- Work Location: Tokyo, Japan
- Working Model: 24x7 Operations (3-shift rotation)
- Ensure high availability, reliability, and performance of the 5G Core network by providing advanced L3 technical support, leading complex incident resolution, performing root cause analysis (RCA), and enabling operational optimization through automation and knowledge transfer.
- Incident Management & RCA: Lead troubleshooting of critical and complex 5GC incidents and perform root cause analysis.
- Vendor Coordination: Act as primary interface with OEM/vendors for issue resolution and patch validation.
- 5G Core & Cloud-Native Operations: Operate and troubleshoot 5GC network functions (AMF, SMF, UPF, PCF, UDM) and Kubernetes platforms.
- Knowledge Transfer & OJT: Provide training and maintain KB documentation.
- Operational Improvement & Automation: Drive improvements and support automation initiatives.
- 10+ years in telecom domain.
- 5+ years in NOC / Operations Support or 2+ years in NOC management.
- Strong expertise in 5G Core architecture.
- Hands-on with Kubernetes and containerized platforms.
- Strong troubleshooting using Wireshark, Tcpdump.
- Fluent English and vendor coordination experience.
- CI/CD tools (Jenkins, GitLab).
- Scripting (Python / Go).
- Performance tuning and automation exposure.
- 24x7 shift model (3 shifts).
- Ticket volume ~10/month.
- SLO: P1/P2: 1 hr, P3: 24 hrs, P4: 3 days.
- Tools: Kubernetes, OpenStack, Symworld, Radcom.
- Weekly technical updates and monthly governance.
- Coordination with RM technical lead and L1/L2 teams.
- MTTR compliance.
- RCA quality.
- Reduction in repeat incidents.
- Operational efficiency and automation gains.
Skills Required
- 10+ years in telecom domain
- 5+ years in NOC / Operations Support or 2+ years in NOC management
- Strong expertise in 5G Core architecture
- Hands-on with Kubernetes and containerized platforms
- Strong troubleshooting using Wireshark, Tcpdump
- Fluent English and vendor coordination experience
What We Do
WHO Founded in 2006 and headquartered in Redmond, WA. Our Senior Leadership team has more than 137 years of combined experience in the Telecommunications and Software Industry. Inabia is built on family values and close-knit culture. This commitment extends to the relationships we build with both our employees and our business partnerships. As a Minority Certified business, we strive to positively impact society through technology, people, and innovation. WHAT For over a decade, we have been providing powerful IT and business solutions to individuals and businesses alike. Here at Inabia, we believe that our success reflects our clients’ success. HOW We are fortunate to be situated in a city where technology and innovation is not only appreciated; but part of day to day lives. We are a growing company that has adapted and evolved our approach, helping us to exceed the ever-changing needs and requirements of our clients. WHY We are a company that fosters and values relationships, as a result many of our clients have been with us from the start of our journey. We ensure that our partners have access to best-in-class professional support, management consulting and staffing services. We make sure our consultants are carefully screened and selected based on their experience. This process ensures that we meet or exceed the specific needs of our clients.
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