Network Engineering Specialist

Network Engineering SpecialistLocation: London or Bristol (Hybrid) Contract: 6 months Security Clearance: BPSS Required Start Date: ASAPThe OpportunityWe''re partnering with a leading telecommunications organisation at the forefront of critical national infrastructure to recruit an experienced ESN Specialist - RAN. This is an exciting opportunity to play a key role in the optimisation and performance of a high-profile Emergency Services Network (ESN), ensuring exceptional service availability and user experience for mission-critical communications.Working within a specialist RAN Performance andamp; Optimisation team, you''ll be responsible for identifying performance issues, conducting deep technical investigations, and driving improvements across 4G/LTE public safety services.Key ResponsibilitiesPerform detailed analysis of UE logs, network traces and protocol captures to identify performance issues and service degradation.Conduct end-to-end troubleshooting across LTE networks, including SIP signalling, Push-to-Talk (PTT), SRTP and DTLS services.Analyse drive test logs and network protocol traces to determine root cause of defects and underperforming KPIs.Investigate systematic issues affecting ESN performance and customer experience.Utilise data from multiple sources including: UE application events and Layer 1-3 logsDrive testing and Wireshark traceseNodeB and Core Network signallingOTT protocol tracesCoverage, capacity and OSS performance dataNetwork change recordsWork ..... full job details .....