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Posted 05 August, 2026

Network Performance/QA Validation/Network Test Engineer

Hunter Bond
London, ENG, GB Full Time

Job Description

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Job title: Network Performance/QA Validation/Network Test Engineer

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Client: Telco

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Salary: £50,000-£60,000 + Bonus

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Location: London

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Skills: Network Testing, QA, Network Validation, IMS, Packet Switching, CS, Telco Network Protocols

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The role:

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My client are seeking a Network Performance/Network Test/QA Validation Engineer to join their team.

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Offices are Central London based, with expectations being 3 days a week in the office and 2 from home.

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You will need to have a valid driving license.

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

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

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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.

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

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

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  • SIM/eSIM/BAP Testing
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  • Oracle/SQL
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  • Unix/Linux
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Please apply ASAP for more information.