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Core Network Performance and Optimization Engineer

Hunter Bond — United Kingdom · Posted ~9 hours ago

Senior Hybrid £50000-£60000 + bonus

Skills

network testing QA network validation IMS packet switching CS telecom network protocols core network engineering Packet Switching Telecom Network Protocols Network Testing Network Validation

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Summary ✨ AI‑Generated

A telecom engineering role focused on core network performance, testing, validation, and optimization. You will work hands-on with mobile core technologies and network protocols, collaborate with technical teams, and occasionally travel within Europe for short assignments. A valid driving license is required.

Highlights

Hybrid working with three office days and two home-working days, competitive salary plus bonus, and limited European travel. The role provides hands-on responsibility for core telecom networks, performance, testing, validation, and optimization.

Description

Job title: Core Network / Network Performance and Optimisation Engineer Client: Telco Salary: £50,000-£60,000 + Bonus Experience Level: 5-10 years Location: London Skills: Network Testing, QA, Network Validation, IMS, Packet Switching, CS, Telco Network Protocols The role: My client are seeking a Network Core Network / Network Performance and Optimisation Engineer to join their team. 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 NetworksExperience working for an MNO / MVNO / Tier 1 SupplierGood understanding of Network Validation, Testing, Performance and QualityExperience with Drive Testing usefulCS (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 TestingOracle / SQLUnix / Linux Please apply ASAP for more information.