Technical Security Engineer

Are you an IT support professional who's confident being the only show in town and ready to learn some new skills?

Join us as a Technical Security Engineer and take the next step in your career, building expertise in security platforms and modern infrastructure while making a real impact. You'll play a key role in keeping critical systems running smoothly, providing hands-on support, resolving technical issues and ensuring our platforms remain secure, reliable and available.

Working as part of a small but highly collaborative team, you'll take ownership of fault investigations, system maintenance and patch management, while supporting users and working closely with internal stakeholders and external partners. It's a varied role that combines problem solving, customer support and continuous learning, with opportunities to contribute to new projects and develop valuable technical skills along the way.

Who we are

At Virgin Media O₂, we connect people to the moments that matter most. Virgin Media leads the UK for broadband reliability, speed and overall performance, while O₂ keeps people connected on the move with award-winning coverage.

We’re also proud to be named one of the Financial Times Top 500 Best Employers for 2026, based on one of the UK’s largest employee satisfaction surveys.

Join us and you’ll be part of a team that stays curious, positive and focused on making life easier for our customers and each other. We’re investing in the future of connectivity, from expanding next-generation 5G to exploring satellite-supported solutions that help reach rural communities and hard-to-connect places.

You’ll work with people who back good ideas and give you plenty of room to grow. So if you’re looking for a place where you can feel supported, trusted and genuinely valued, you’ll feel right at home here.

Our ways of working

We’re a flexible-first organisation, because we know people do their best work when they have choice and clarity. To support meaningful collaboration, we ask everyone to spend at least eight days a month connecting with each other in person.

That doesn’t just mean time in the office – it could be team meetings, offsites, volunteering days, cross-functional projects, or away days. What matters is making those moments count – so when we come together, it benefits everyone.

Accessible, inclusive and equitable for all

We believe a better tomorrow starts with the choices we make today. That means moving the dial on diversity, building equity into everything we do and putting inclusion at the heart of our business.

Virgin Media O₂ is an equal opportunities employer and we work hard to remove bias and barriers. We want every person who joins us – and everyone thinking about joining us – to feel seen, heard and supported.

When you work with us, you’ll have access to our award-winning employee network groups. These communities bring people together, champion allyship and create uplifting spaces where you can learn, share and feel part of something bigger. They play a big role in helping people feel connected from day one.

The must haves

In order to be considered, you must have the following experience.

• Provide day-to-day technical support, investigating and resolving incidents across IT systems and infrastructure.
• Administer Microsoft Active Directory, including creating and managing user accounts, security groups, permissions and organisational units.
• Manage user access, password resets, account lockouts and joiner, mover and leaver requests.
• Apply role-based access controls and ensure users have the appropriate level of system access.
• Monitor the health, availability and performance of Red Hat OpenShift environments.
• Support OpenShift users with access, authentication, application deployment and platform-related issues.
• Investigate platform alerts, failed deployments, connectivity issues and application incidents.
• Perform routine system maintenance, upgrades, patching and security checks.
• Maintain accurate technical documentation, support procedures and configuration records.

The other stuff we are looking for

We'd also love you to bring;

• 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

What's in it for you

We know life isn’t just about work, so our benefits are built to support you in the moments that matter. You’ll get Bupa healthcare, wellbeing support, life cover, a pension and generous holiday –plus your birthday off.

And there’s more. Enjoy some extra perks on us, with optional electric vehicle lease and Cycle2Work schemes, dental insurance, neurodiversity assessments, and brilliant discounts on broadband, TV and mobile. You’ll even get access to the Virgin Family platform and the O₂ Priority app, with exclusive rewards, experiences and chances to attend events at The O₂ and beyond.

Next steps

If this feels like a place where you can belong, we’d love to see what you can do. Once you apply, the next steps might include a call with a recruiter, a video interview, an interview with the hiring manager and a task or assessment.

We’ll also ask about any adjustments you might need, and we’ll do our best to make them happen.

We review applications and interview throughout the advert window, so it’s worth applying sooner rather than later. If you’re offered the role, the offer will be subject to background checks, including a criminal record check and, for some roles, a financial background check.

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