Validation Engineer (Core Application)

Duties and Responsibilities / 職務範囲:

Capgemini Engineering Team (ERD) is currently looking for Validation Engineer who is responsible for the following tasks:

  • Build, automate and execute comprehensive L2/L3 test plans for product and system validation
  • Evaluate, validate and support Core network changes (DPI, Packet Core Network, L4/L7 etc.) to ensure seamless services
  • Lead MWs from IoT QA team and support business changes.
  • Define ATP test strategy/ Test plan, execute manual and automated test cases based on evolving and changing product specifications
  • Work with development to analyze and troubleshoot complex network use cases in order to influence product testability
  • Working cross-functionally to identify opportunities to apply existing automation or other tools to meet testing needs
  • Maintain flexibility to react quickly to changes in priorities or circumstances to meet the needs of the business
  • Work in a highly collaborative and dynamic environment, managing multiple competing priorities and assignments
  • Exposure to E2E call flows/use cases in LTE/UMTS
  • Ability to troubleshoot to the failures in the various elements in the packet core nodes


Qualifications (Mandatory) / 応募条件(必須):

  • Thorough knowledge of 2G, 3G, 4G and 5G packet core networks
  • GTP Protocol testing, Script Development and Implementation Knowledge
  • GTP Security, LTE Security
  • 3GPP Specs knowledge and hands on experience in Openstack
  • Hands on experience in the testing of CGNAT, vEPC, vDPI of the 4G LTE network
  • SS7 and MAP protocol knowledge is an added advantage
  • Fluent in Japanese, Business level English is welcomed


Work Location/勤務地:

Tokyo or OsakaBasically Work from Home. Needs to visit Osaka at least once in a month






Experienced (non-manager)


Bachelor's degree or equivalent