Technical Security Engineer

Virgin Media O2; Andover; On-site; GBP 40,000 - 60,000; Full time

Benefits offered by this job

Bupa healthcare

Wellbeing support

Life cover

Pension

Generous holiday

Electric vehicle lease

Cycle2Work schemes

Dental insurance

Discounts on broadband, TV, mobile

Job summary

Virgin Media O2 is seeking a key member for their Government Security team in Andover. This role involves overseeing the daily operations of the Security function, ensuring compliance and security for customers while leading complex fault investigations.

The ideal candidate will have knowledge of mobile networking, be proficient in Linux system administration, and possess strong troubleshooting skills. Benefits include Bupa healthcare, life cover, and employee discounts.

Qualifications

• Demonstrates strong knowledge of mobile networking.
• Ability to quickly learn and adapt to new challenges.
• Comfortable analysing complex technical situations.

Responsibilities

• Oversee the day-to-day operation of VMO2's Security function.
• Support customers and lead complex fault investigations.
• Create high-quality technical documentation.

Skills

Mobile networking (packet core, IMS, voice core)

Complex fault analysis and resolution

Linux system administration

Troubleshooting methodology

Understanding of Investigatory Powers Act 2016

Operational monitoring tools (Zabbix, Grafana)

Job description

Location: Andover

Job Family: Corporate Functions

Job Type: Full Time

Posted Date: 22-Jun-2026

Ref #: 73006

Overview

As a key member of our Government Security team, you will be at the heart of protecting our customers and supporting critical national security work. You will oversee the day‑to‑day operation of VMO2's Security function, ensuring our systems run smoothly, securely, and in full compliance with legal obligations. Working as part of a small close‑knit team, you will support customers, lead complex fault investigations, carry out integration and verification testing, and play an important role in shaping future capabilities.

Qualifications

• Demonstrates working knowledge of mobile networking (packet core, IMS, and voice core).
• Apply complex fault analysis and resolution techniques to restore service swiftly.
• Ability to learn quickly and adapt to new challenges with minimal guidance.
• Handle and manage conflicting priorities instinctively.
• Works well within a team and operates effectively without supervision.
• Demonstrates a strong troubleshooting methodology.
• Communicates effectively and collaborates across teams within VMO2, including engaging with senior leadership as required.
• Proficient in Linux system administration.
• Create high‑quality technical documentation.
• Implements health‑check monitoring and automation schedules to ensure operational integrity.
• Has exposure to operational monitoring and troubleshooting tools (e.g., Zabbix, Grafana).
• Provides support for operational testing and system integration activities.
• Awareness of the Investigatory Powers Act 2016 (IPA) and its implementation.
• This role requires you to undergo and obtain UK Government Security Clearance.
• A natural curiosity and a methodical approach, enabling you to get to the root cause of problems quickly and confidently.
• Comfortable analysing complex technical situations, asking the right questions, and using data and evidence to guide your decisions.

Virgin Media O₂ is an equal opportunities employer and we work hard to remove bias and barriers.

Benefits

Benefits include Bupa healthcare, wellbeing support, life cover, a pension and generous holiday. Additional perks include optional electric vehicle lease and Cycle2Work schemes, dental insurance, neurodiversity assessments, and discounts on broadband, TV, and mobile. You also get access to the Virgin Family platform and the O₂ Priority app, with exclusive rewards and experiences.