モビリティ アーキテクト / Mobility Architect - Tokyo【外資系IT企業】東京勤務

Job Title: モビリティ アーキテクト / Mobility Architect - Tokyo【外資系IT企業】東京勤務
Location: Tokyo
Reference: 2064
Contact Name: Manu Tomar
Job Published: September 11, 2018 16:57

Job Description


A global company is looking for a Mobility Architect in Tokyo.
This is a brand new project which is related to 5G, you can utilize your experience & skill.

JD (Abbr):
- Customer Requirements Study and come up Network Architecture (both Network & NFVI PODs)
- Develop High Level Design Specification and Low Level Design Specification based on customer requirement
- Responsible for Test design, implementation and support of all related network technologies.
- Define Test Automation Strategy for node level & network level testing
- Review test results and participated in customer acceptance review calls
- Participate in FOA and Support during the Upgrades.

Fixed Term for 1 Year + Extendable/Permanent


- 8-15 years of industry experience in Wireless Core Network domain
- Japanese: must (business level), English: nice to have
- Experience/skill in :
Packet Core (or) Mobile Packet Core
ASR 5K or ASR 9K
LTE (Long Term Evolution)
Openstack (this is cloud platform for bringing up cluster of nodes)
Python (for test automation)


  • Domain Experience
    • Sound Knowledge / Experience in 3GPP SAE Architecture
    • Very good understanding of Routing and Switching Protocol experience (enterprise): L2 - Ethernet, xSTP, LACP, QoS, L3 - BGP, OSPF, IS-IS, MP-BGP, iBGP etc.
    • NMS - TMF / 3GPP / NGMN Standards Knowledge
    • ETIS NFV ISG Reference Architecture
    • Packet Core (SGSN, GGSN, MME, SGW, PGW, HSS, PCRF) functional and non-functional requirements understanding
  • Architecture Experience
    • Understand 4G / LTE Packet Core Deployment Architecture
    • NFVI POD Architecture including underlay / overlay networking, Cloud Management and Orchestration
    • Good knowledge of RAN Interworking with Packet Core
    • Good knowledge of SGi and Service Chaining
  • Technology Skills
    • Exposure to Virtualization domain – Familiar with Hypervisors like VMware, KVM. Worked on Openstack or any other Cloud Management Systems.
    • Hands-on experience in deployment of vEPC on the cloud infrastructures like VMware vSphere, Ubuntu OpenStack, RHEL OpenStack .
    • Hands-on Experience in Installation of LTE Core network elements
    • Hands-on experience of Installation and commissioning experience.
    • Hands-on Experience in Installation of OpenStack with KVM Hypervisor on Ubuntu and RHEL.
    • Hands-on experience in deployment and configuration of various call flows of 2g, 3G and 4G packet core.
    • Experience in LTE EPC network elements MME, S-GW, P-GW network implementation.
    • Support troubleshooting of interoperability and end-to-end service related integration and test activities for LTE EPC Nodes.
    • Build the required end to end wireless network nodes with the required software release, integrate and configure the nodes for all the supported interfaces.
    • Interfaces troubleshooting skills.
    • Packet Core (SGSN, GGSN, MME, SGW, PGW, HSS, PCRF), upgrade, Configuration skills.
    • Complete understanding of LTE E-2-E Network architecture and IP Routing.
    • Good Knowledge on UDP / TCP / IP features.
    • Good knowledge on ETSI specifications for LTE and Virtualization areas.
    • Exposure to CISCO Packet core and deployment (desirable) ( ASR 5500 and Cisco VIM infrastructure on Cisco UCS server)
    • Hands-on Experience in CISCO ULTRA-M will be an added advantage
  • Scripting / Automation
    • Hands-on Python Coding experience.
  • Certifications
  • Cisco Certifications in Data and Voice Domains – CCNA, CCNP or CCIE desirable

Job details

¥8,000,000 ~ ¥13,000,000
Language requirement
Japanese (Business), English (Business)