Job Description:
About Organization
The core mission of IMS (IP Multimedia Subsystem) Core Operations is to build and manage a robust, standardized, and flexible telecommunications infrastructure.
We are at the forefront of revolutionizing how mobile networks are built and operated by embracing cloud-native principles and open technologies.
Our work is critical because it enables service convergence, drives innovation, and significantly reduces operational complexities for service providers. Ultimately, we deliver a superior and richer communication experience for end-users, positioning IMS as a cornerstone of modern telecommunications.
Within this critical mission, we specifically focus on the day-to-day operation and support of PCF (Policy Control Function) and CHF (Charging Function) nodes.
Job Duties
As a Senior IMS Core Architect, you will be responsible for the full lifecycle of operations, including Incident Management, Configuration Management, and Performance Management
Key responsibilities include:
Operational Leadership:
Lead the day-to-day operation and support of PCF and CHF nodes, ensuring their stability and performance.
Troubleshooting & Resolution:
Utilize a solid understanding of Rx, Gx, Gy, Sd interfaces and Diameter Protocol to troubleshoot PCF and CHF incidents, identify root causes, and ensure swift resolution.
Cloud-Native Integration & Automation:
Leverage Kubernetes for networking and container orchestration, and automate network-related tasks within the cloud environment to ensure smooth integration and efficiency.
Performance Optimization:
Conduct regular technical analysis to optimize PCF and CHF nodes, identify performance bottlenecks, capacity issues, and potential service impacts, then implement strategies to enhance network efficiency and user experience.
Collaboration & Communication:
Collaborate effectively with internal teams and external vendors to resolve escalated technical issues.
Ensure timely and accurate incident reporting, documentation, and clear communication of complex technical concepts to both technical and non-technical audiences.
Service Lifecycle Management:
Provide operational support for new service launches, network expansions, and technology trials.
Plan, schedule, and execute complex network changes, upgrades, and configurations on IMS elements with minimal service disruption, collaborating with planning, engineering, and project teams on design and deployment activities.
Minimum QualificationsEducation:
Bachelor's degree in Telecommunications, Engineering, or a related field.
Experience: 10+ years of hands-on experience in Core network components.
Technical Knowledge:
Solid knowledge of Telecommunications, Virtualized Core network (VNF & CNF), Networking principles, protocols, and technologies.
Tooling & Automation:
Experience with deployment and monitoring tools, advanced troubleshooting techniques, performance analysis, and an automation mindset.
Problem-Solving:
Excellent analytical and problem-solving skills with a focus on delivering high-quality results.
Work Ethic:
Self-motivated, proactive, and able to work independently and lead the team.
Adaptability:
Ability to adapt to a fast-paced, dynamic environment and manage multiple priorities effectively.
Customer Focus:
Strong commitment to delivering high-quality service and ensuring customer satisfaction.
Language Skills:
Fluent in English; Japanese language skills are a plus.
Languages:
English (総合 - - 流暢)
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