Job Title

First Point Group is recruiting for a Core Network Engineer (Ericsson/Nokia) with specific previous experience working on Virgin Media / VMO2 and/or BT/EE networks and projects. The successful candidate will have extensive experience within operational support, optimisation, and evolution of a next-generation IMS and 5G core network.This is a fully remote role based on a daily rate contract.Please note - sponsorship cannot be provided, so candidates must live in the UK with valid rights to work.ResponsibilitiesPerform daily configuration, operation, and maintenance (O&M) of IMS Core network nodes to ensure continuous service availability.Monitor network KPIs and proactively provide performance improvement recommendations across internal and external IMS Core platforms.Collaborate with cross-functional teams using automation and analytics tools to improve operational efficiency.Execute parameter configuration changes on the 5G Standalone Core platform, including cloud-native core environments and subscriber data platforms.Manage performance monitoring and alerting for 5G SA Core networks using modern observability tools (metrics, logging, and alert management).Conduct service validation, acceptance testing, and end-to-end functional testing for IMS and 5G SA services.Audit core network nodes and services to ensure maximum availability, resilience, and compliance with operational standards.Lead capacity planning activities for Core network elements, ensuring scalability and alignment with traffic growth and service demand.Handle end-to-end KPI and KQI analysis across Core and interdependent network domains.Diagnose and resolve complex IMS Core network issues related to configuration, software, hardware, products, and services.Support the integration, commissioning, and acceptance of new Core network nodes and services, including project and vendor coordination.Provide L2/L3 operational support and escalation handling for Core network incidents, including roaming-related issues.Perform pre- and post-implementation analysis of IMS Core KPIs following network changes and optimisation activities.Manage product and software lifecycle activities across all Core network nodes, including upgrades, patches, and decommissioning.Key Skills & ExperienceStrong hands-on experience with IMS Core and 5G Core network environmentsProven expertise in Core network operations, performance management, and troubleshootingExperience working with cloud-native Core architectures and automation-driven operationsSolid understanding of KPIs, KQIs, and end-to-end service assuranceAbility to manage complex incidents and collaborate across engineering, operations, and vendor teamsExperience supporting live production networks in a high-availability environment