ESN 5G Performance & RAN Optimisation Lead

Nokia; West of England; On-site; GBP 70,000 - 120,000; Full time

Job summary

Nokia seeks an experienced ESN 5G RAN/E2E Performance & Parameter Optimisation Specialist to support the UK Emergency Services Network. You will lead performance analyses, identify degradation root causes and implement improvements across Nokia and Ericsson RAN environments.

You will influence network strategy, KPI frameworks, and SLA achievement, driving 5G+ capability development and ESN enhancements that improve public safety communications in the UK.

Qualifications

• Extensive experience as Network Performance or RAN Optimisation SME within mobile telecommunications.
• Expert in LTE, 5G and 5G+ performance management and optimisation.
• Strong understanding of KPI definition, design, measurement and benchmarking.
• Expert knowledge of Nokia RAN performance management and optimisation.
• Experience investigating and optimising drive test logs, traces and OSS performance data.

Responsibilities

• Design, define and evolve performance KPIs aligned to real user experience.
• Conduct root cause analysis of network performance issues across RAN and end-to-end services.
• Develop optimisation plans using OSS trends, network counters, KPIs, crowdsourced data and customer performance metrics.
• Perform feature and parameter optimisation trials across Nokia and Ericsson RAN networks.
• Evaluate trial outcomes, quantify gains and assess wider network impacts.
• Drive improvements in 5G Standalone (SA), Non-Standalone (NSA) and 4G/5G interworking performance.
• Analyse drive test logs, protocol traces and performance data to identify service-affecting issues.
• Investigate systematic network defects impacting Public Safety services, including Push-to-Talk performance.
• Collaborate with suppliers, vendors and internal stakeholders to deliver effective resolution plans.
• Provide technical leadership and knowledge-sharing across the optimisation community.

Skills

KPI design

Root cause analysis

Network optimisation

End-to-end performance

RAN optimisation

Tools

Nokia RAN

Ericsson RAN

Wireshark

TEMS

Nemo

Actix

Accuver

LTE Parameters & Timers

OSS platforms

Job description

Nokia seeks an experienced ESN 5G RAN/E2E Performance & Parameter Optimisation Specialist to support the UK Emergency Services Network. You will lead performance analyses, identify degradation root causes and implement improvements across Nokia and Ericsson RAN environments.

You will influence network strategy, KPI frameworks, and SLA achievement, driving 5G+ capability development and ESN enhancements that improve public safety communications in the UK.