Tech Lead, IP Strategy Group -Strategy and Architecture Section (RMI IP & Transport Eng. & Ops Dep)

📍 Location
Japan, Tokyo
⏰ Job Type
Full-time
📅 Posted
January 17, 2026
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Job Description

Description

:

About Organization

IP & Transport Eng. & Ops Department of Rakuten Mobile is responsible for completestrategy, design, implementation, automation and operations of network for providing connectivity/value added services including Mobile & Enterprise customers.

Job Duties

The Strategy and Architecture Section is responsible for
• Strategize and design of IP & Optics Network
• Manage Product life cycle management for network
• Develop and maintain automation required for deployment and planning team
• Vendor management for new product and solutions.

IP Strategy team within Strategy and Architecture section is crucial for setting path forward for IP network evolution , introduction new features, solutions to fulfill business need and help improve customer experience.

Primary role would be to Design, Validate, Implement and Support the IP Transport Network technologies. In this role you will help build the next generation IPv6 transport network. This includes collaborating with internal and external stake holders to craft solutions.

Minimum Qualifications

• 10+ years of experience in the Networking Industry or large-scale Enterprise networks.
• Strong knowledge of routing and switching protocols and Network Architecture.
• Excellent problem-solving and analytical skills.
• Effective communication and collaboration skills.
• Good understanding of TCP/IP, DNS, DHCP and Wireshark.
• Expert level of understanding in routing protocols such as MP-BGP, ISIS & OSPF.
• Good Knowledge of IPv6, SRv6, MPLS, EVNP, QoS.
• Configure and troubleshoot routing protocols (ISIS, OSPF, MP-BGP, MPLS, SR, etc.)
• Optimism the network performance and ensure high availability.
• Collaborate with other teams to ensure seamless integration with other systems.
• Troubleshoot network issues with SoC & TAC teams.
• Hands-on experience on ASR, NCS and Nexus devices.

Preferred Qualifications

• Certification in routing (CCNP, CCIE-ENT/SP/JNCIE-SP etc.)
• Knowledge and hands-on experience in SRv6.
• Experience with Network Automation and scripting (Python, Ansible, etc.)

Languages:

English (Overall - 3 - Advanced), Japanese (Overall - 4 - Fluent)

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