Senior Core Expert


Job Description

Kimberly Hume is looking for a number of Senior Core Experts to work a 12 month extendable contract based in Germany (Dusseldorf).

Job Description: 

Core Expert responsibilities involves detailed technical investigation, troubleshooting, and providing solutions while maintaining professional communication with VIP users and stakeholders.

Good to Have:

  • Strong Core Experience
  • Solid Project Management skills
  • Proficiency in detailed technical investigation and troubleshooting.
  • Ability to fetch, trace, open and update tickets.


  • Perform detailed technical investigations to diagnose and resolve core network issues.
  • Troubleshoot and suggest solutions for identified problems in the core network.
  • Manage and resolve an average of 6 tickets per day, not exceeding 30-40 tickets per week.
  • Fetch, trace, open, and update tickets for each identified VIP issue or received VIP complaints.
  • Ensure timely resolution of issues and maintain detailed documentation.
  • Cooperate with internal and external stakeholders such as Engineering, NOC, and Vendors.
  • Maintain continuous communication with other teams (e.g., CTM) to align on open bugs and network problems.
  • Involve Incident Managers for joint investigations with other stakeholders as needed.
  • Provide professional and courteous communication with VIP users when required.
  • Consultant will work on rotation-based shift, including nights and weekends, exclude public holiday but limited to 8 hours per day, 5 days a week
  •  The shift timing will be 8 hours each day from 0700 Hrs. -1500hrs , 1500 Hrs. -2200 Hrs. and 2200 to 0700 Hrs. It can be any one shift on rotational basis.

Acceptance Criteria for Selection:

  • Proven experience within Core Network
  • Experience with technical investigation and troubleshooting
  • Strong understanding of 5G network architecture, protocols, and standards.
  • Ability to manage multiple tickets and tasks efficiently.
  • Strong documentation skills to maintain detailed records of investigations and resolutions.
  • Well- Excellent communication and collaboration abilities to work effectively with stakeholders and cross-functional teams.
  • Professional demeaner for potentially interacting with VIP users.


  • Bachelor’s or master’s degree in Telecommunication, Network Engineering, or a related field.
  • 7+ years of telecommunication technology industry experience
  • 7+ years of network test experience/radio technologies experience

Please note: The client has requested consultants already based in Europe.

Job Overview

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