RAN Performance Engineer

Salary: £91,000 - 109,200 per year

Requirements:

• Strong experience within Mobile Network / RAN Performance.
• Experience investigating KPI performance issues and carrying out root cause analysis.
• Knowledge of Huawei, Ericsson and/or Nokia performance counters.
• Experience analysing network alarms and operational data.
• Incident management experience.
• Experience working within a live operational mobile network environment.
• Strong analytical and troubleshooting skills.
• Ability to make decisions using incomplete or ambiguous information.
• Strong communication skills.
• Preferred: 4G and 5G network experience.
• Preferred: Drive test analysis.
• Preferred: Attoll experience.
• Preferred: Coverage analysis and planning knowledge.
• Preferred: SQL, Python, Power BI or other data analytics tools.
• Preferred: Experience working with AI or automation tools.

Responsibilities:

• We monitor and analyse RAN performance KPIs.
• We investigate KPI degradation and identify root causes.
• We analyse Huawei, Ericsson and Nokia performance counters and alarms.
• We investigate customer-reported network issues.
• We raise and manage incidents through to resolution.
• We work closely with operations and managed service providers to resolve performance issues.
• We recommend and implement actions to improve network performance.
• We produce reports and evidence to support decision making.
• We help improve AI-driven network performance monitoring tools.
• We share knowledge and support less experienced team members.

Technologies:

• AI
• Incident Management
• Support
• LESS
• Mobile
• Network
• Power BI
• Python
• SQL

More:

We are looking for an experienced RAN Performance Engineer to support the performance of a leading UK mobile network. This is an initial 6-month contract with a day rate of up to £420 per day inside IR35. The role is available for core site locations including London, Bristol, Birmingham, Manchester, Ipswich, and Glasgow. This is an operational support role covering extended service hours, with working hours between 8am-8pm Monday to Friday and 9am-5pm on weekends and Bank Holidays on a rota basis.

last updated 35 week of 2026