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Senior Core Governance Engineer, Core Quality & Capacity Management Group -Core Operations Governance Section (RMI Core Network Operations Dep)

Rakuten Mobile.com

Office

Rakuten Crimson House, Japan

Full Time

Job Description:

About Organization

The core mission of Quality Control Management (QCM) is to ensure that products, services, or processes consistently meet defined quality standards, specifications, and customer expectations. This department focuses on defect prevention, detection, and continuous improvement.

The attractiveness of this role lies in its direct impact on customer experience, engaging problem-solving, attention to detail, broad process understanding, and opportunities for continuous learning and career growth. Through effective QCM, the organization achieves enhanced customer satisfaction, a stronger brand reputation, reduced costs (fewer defects/rework), mitigated risks, and a competitive advantage. This involves developing and implementing core network quality control strategies and standards, as well as driving process improvement and automation initiatives.

Job Duties

As a Core Network Quality Control Manager, this role requires a deep understanding of core network technologies and operations, combined with strong leadership, process management, and analytical skills to ensure high availability, performance, and compliance across all core network services (Packet Core, IMS, RCS, and Applications).

Key Duties Include:

  • Strategy & Leadership: Develop and implement core network quality control strategies and standards. Lead, mentor, and develop the QCM team.
  • Testing & Validation: Oversee comprehensive testing and validation for core network elements of IMS Packet Core and RCS.
  • Quality Metrics & Reporting: Manage, define, track, and report on key quality metrics and performance.
  • Process Improvement: Drive process improvement and automation initiatives. Identify, analyze, and drive improvements in core network operational processes to enhance efficiency, reduce manual effort, minimize errors, and improve service quality.
  • Audits & Remediation: Lead and coordinate internal performance audits related to core network operations, ensuring timely and effective remediation of findings.
  • Change Management: Oversee the implementation of complex network changes, upgrades, and new feature deployments, ensuring operational readiness and minimizing service impact.
  • Collaboration: Collaborate closely with Network Planning, Engineering, OSS, and Operations teams to ensure seamless service delivery and alignment of operational goals.
  • Communication: Strong verbal and written communication skills, with the ability to articulate complex technical concepts clearly to both technical and non-technical audiences.
  • Operational Excellence: Proven track record of developing, implementing, and optimizing operational processes and performance frameworks. Demonstrated experience in leading or significantly contributing to performance audits and network design reviews.

Minimum Qualifications

  • Education: Bachelor's degree in Telecommunications, Engineering, or a related field.
  • Experience: 6+ years of hands-on experience in Core components.
  • Technical Knowledge: Solid knowledge of Telecom, Virtualized Core network (VNF & CNF), Networking principles, protocols, and technologies.
  • Core Network Experience: Extensive hands-on experience with the operation and maintenance of large-scale mobile core networks (4G LTE EPC, 5G Core, IMS, etc.).
  • Auditing Experience: Demonstrated experience in leading or significantly contributing to performance audits and network design reviews.
  • 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 with minimal supervision.
  • 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.

Languages:

English (Overall - 4 - Fluent)

Senior Core Governance Engineer, Core Quality & Capacity Management Group -Core Operations Governance Section (RMI Core Network Operations Dep)

Office

Rakuten Crimson House, Japan

Full Time

September 16, 2025

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Rakuten Mobile

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