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# Core Network/Network Performance and Optimisation Engineer

- **Company:** Hunter Bond
- **Location:** London, UK
- **Experience:** Expert
- **Salary:** £50,000.0 - £60,000.0
- **Contract:** Permanent contract
- **Skills:** Packet Switching, Software Debugging, Domain Name System (DNS), GPRS Core Networks, Mobile Virtual Network Operator, Network Protocols, Oracle (Applications), Standard Sql, Mobile Network Operator
- **Published:** August 6, 2026
- **Apply:** https://www.careerboard.com/pt/en/find-jobs-in-United-Kingdom/-3A7918694E53FC2310/

## About the Role

Skills: Network Testing, QA, Network Validation, IMS, Packet Switching, CS, Telco Network Protocols, Offices are Central London based, with expectations being 3 days a week in the office and 2 from home.

You will need to have a valid driving license.

There will be limited travel required with the position, likely once a month to parts of mainland Europe for short trips.

The successful candidate will stem from a Telco background and have strong hands on experience around the Core Network.

You should come from either a Mobile Network Operator (MNO), Mobile Virtual Network Operator (MVNO), or Tier 1 Supplier, and will have worked largely operated in Europe.

You will have skills around as many of the following as possible

 * Strong experience around Core Telco Networks
 * Experience working for an MNO/MVNO/Tier 1 Supplier
 * Good understanding of Network Validation, Testing, Performance and Quality
 * Experience with Drive Testing useful
 * CS (MSS/MGW, SBC, STP, SMSC, HLR, IVR)
 * PS (SGSN/SGW, PGW, PCRF, DNS, AAA)
 * IMS (CSCF, MRF, TAS, ePDG)
 * Good understanding of standards and architectures (3GPP, IETF, GSMA etc.)
 * Core Network Protocols (GTP, Gi, Sy, Gx, Gy, Ro, MAP, SIP, RTP, SMPP etc.)
 * Working through logs to debug issues

Desirable

 * SIM/eSIM/BAP Testing
 * Oracle/SQL
 * Unix/Linux

## Description

My client are seeking a Network Core Network/Network Performance and Optimisation Engineer to join their team.


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