Senior Infrastructure Security Engineer - FTC

We are PXC, the UK's largest provider of wholesale connectivity. Our vision is to be the UK's #1 wholesale platform, a one-stop shop provider of connectivity, voice, cloud and security underpinned by the UK's most robust, secure, resilient and reliable network.

Born from the combination of Virtual1 and Talk Talk's wholesale services and national network business, we operate across our 3 core sites (Salford, London and Skopje, North Macedonia).

Our mission is clear, to be the UK's best company to work for and best to work with. We believe this success is driven by the power of our employees. We empower our people to become true experts in their field who embody our values every day: we care; we challenge; we commit.

The Public Cloud Team are responsible for producing high level conceptual and low-level designs, delivering the build of those designs, and ensuring that solutions are supportable when transitioned into run support. The team applies functional knowledge and technical expertise to deliver and maintain systems which ensure that PXC network remains secure and reliable against today's threats.

The team consists of technical experts in Technology and Security, who work as part of the wider Security business unit and align to the strategic objective of continuous improvement of NIST based Security Maturity.

Working as part of the wider Cloud Infrastructure team to ensure our Public Cloud Infrastructure is fit for purpose, meets best practice and is secure and available.

As Senior Infrastructure Security Engineer you will own, manage, support, and maintain the security infrastructure that empowers our staff, along with the security tooling which protects it. You will work to deliver secure, stable and scalable solutions, ensuring any developments to the group's Cloud strategy align with the wider business strategy and security requirements of the Talk Talk Group.

As part of the wider team Public Cloud Services Team, you will work across all our technologies and with teams from all areas of the business. You will act as first point of contact and help guide users to an appropriate solution.

You will help ensure a cloud first, secure by design approach to everything delivered by the Public Cloud Services Team.

• Build and support physical and virtual security infrastructure to ensure stable and reliable services.
• Deliver on project requirements to ensure Talk Talk network and security standards are upheld.
• Maintain security equipment across the office, data centres, and cloud, ensuring devices remain secure, patched, and fit for purpose.
• Manage all Security assets ensuring everything is accounted for, in life and up to date.
• Manage the end-to-end life cycle of Security equipment.
• Work overtime for out of hours changes and on call for out of hours support where required (paid).

• Manage the Security Engineering case queues, ensuring tickets are responded to and closed within SLA.
• Provide top tier support to all Security customers.
• Act as triage for incoming 3rd line incidents and requests.
• Administrate security tooling, including reporting on, and actioning any potential threats to security or service.
• Be accountable for work delivered, ensuring all work is in line with Talk Talk security and network standards.
• Perform changes to the security systems in a stable and suitable manner, following change management processes.
• Help to perform root cause analysis and problem management on Major Incidents and repeat tickets.

• Collaborate with teams across Talk Talk group on risks, improvements, best practices and better understand their challenges.
• Challenge colleagues on projects and tickets that do not meet our standards or could lead to security vulnerabilities or support issues.
• Collaborate with Business Partners and Offshore partners to resolve incidents, validate and plan technical change and problem management, to ensure a high level of support to Talk Talk.
• Interact and coordinate with peers, vendors, suppliers and consultants and work with incident, change and problem management teams as required.