What you’ll do 

• Monitor Mobile Data, Mobile Voice and Fixed network services, alarms, events and performance indicators. 

• Identify, triage and resolve incidents affecting 4G, 5G, IMS, VoLTE, VoWiFi and fixed voice services. 

• Use monitoring and network management tools to detect service degradation and take action before wider customer impact. 

• Raise and manage incident tickets, follow operational playbooks and engage the correct support, engineering, supplier or partner teams. 

• Support planned network changes through pre-checks, post-checks and service validation. 

• Provide concise operational updates, maintain accurate records and contribute to improved procedures and knowledge articles. 

• Work as part of a 24/7 service reliability function and remain calm and effective during major incidents. 

Essential knowledge and experience 

• A strong telecommunications background, preferably gained in a network operations, service assurance or engineering environment. 

• Essential working knowledge of 4G, 5G and IMS, including mobile data and voice service behaviour and common failure scenarios. 

• Understanding of VoLTE and VoWiFi, mobile core and signalling concepts, and IP networking fundamentals. 

• Experience monitoring live telecoms services and interpreting alarms, logs, dashboards and performance information. 

• Experience of incident, problem and change management within an operational environment. 

• Clear communication skills for both technical and non-technical audiences, with a strong team and customer focus. 

Desirable 

• Experience with mobile core, IMS or fixed voice platforms and vendors. 

• Knowledge of GTP, SIP, Diameter, SS7/SIGTRAN, roaming or MVNO operations. 

• Exposure to cloud-native network functions, automation or modern observability tools. 

The team