Mobile Operations Engineer, Virgin Media Office (Goldenbridge, Dublin)
About Virgin Media:
At Virgin Media, we are committed to building networks that deliver exceptional connectivity and seamless customer experiences. Our mobile, broadband, and TV services power how people live, work, and connect. Joining our team means becoming part of an innovative and collaborative environment where your expertise directly contributes to the success of our mobile operations.
Job Overview:
The Mobile Operations Engineer will play a critical role in supporting Virgin Media Ireland's mobile core network operations. This role involves the implementation, monitoring, and maintenance of mobile network infrastructure across 3G, 4G, and future 5G technologies. The engineer will also be responsible for ensuring network reliability, performance, and compliance with regulatory standards, while providing technical support and training to internal teams.
Key Responsibilities:
1. Core Network Engineering & Operations
•Design, integrate, and scale core network elements, ensuring compliance with High-Level and Low-Level Designs (HLD/LLD).
•Deploy and configure new network elements, ensuring seamless integration with existing infrastructure.
•Perform proactive monitoring and troubleshooting of network elements, KPIs, alarms, and performance issues using tools such as Analytics, Wireshark PCAPs and Grafana.
•Maintain and enhance network security through implementation of industry best practices.
•Ensure adherence to 3GPP standards and GSMA guidelines.
1. Reporting & Documentation
•Deliver daily operational reports, weekly KPI reviews, and trend analysis to management.
•Document all network designs, troubleshooting guides, and operational procedures.
•Provide training materials and conduct sessions to upskill internal teams.
1. Support & Troubleshooting
•Provide Tier 3 support for escalated mobile issues (voice, data & SMS).
•Perform detailed root cause analysis and develop preventive measures.
•Ensure availability of out-of-hours/on-call support on a rotational basis.
1. Regulatory & Compliance
•Manage obligations under regulatory frameworks, including participation in the Nuisance Communications Industry Taskforce (NCIT).
•Ensure compliance with emergency services requirements and lawful interception standards.
1. Collaboration & Continuous Improvement
•Work closely with cross-functional teams (VNOC, Voice Operations, Business Support, Vendor Support) to ensure service continuity.
•Contribute to innovation by identifying opportunities for automation, optimisation, and system enhancements.
•Participate in industry forums and knowledge sharing activities.
Required Qualifications & Skills:
•Education: Bachelor's degree in Telecommunications, Computer Science, or related field.
•Experience: 5+ years' experience as a Core or Mobile Network Engineer, ideally with exposure to 3G, 4G, and 5G networks.
•Technical Expertise: Protocols (MAP, Diameter, GTP, SIP, RTP, SMPP); Network integration (SCTP, SIP trunks, SMPP connections); Roaming and subscriber profile repository (SPR) solutions; IP routing, switching, and Cloud platforms (AWS, VMware) and monitoring tools (Grafana).
•Problem-Solving: Strong troubleshooting and analytical skills with ability to interpret raw data (PCAPs, traces).
•Soft Skills: Excellent communication, stakeholder engagement, and teamwork abilities.
•Flexibility: Willingness to work flexible hours, travel occasionally, and participate in on-call rotations.