Cyber Security Ops. Professional

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About the role

You'll be joining Managed Security & Cyber Operations within BT Business, where you'll play a vital role in helping keep our customers secure.

Working as part of a team that designs, builds and operates complex cyber security solutions, you'll help protect customer networks, digital infrastructure and critical business services for organisations of all sizes.

This role directly supports BT's strategy by delivering market-leading cyber security services from the BT Security portfolio, enabling our customers to operate securely and confidently in an increasingly digital world.

Due to the nature of our work with secure customers and environments, this role requires SC clearance. Candidates must have lived in the UK for at least 5 years and must either hold current SC clearance or be eligible and willing to obtain it as part of the onboarding process. In addition, due to customer and contractual security requirements, this role is open to UK Nationals only.

What you’ll be doing

• Participate in an on-call rotation.
• Monitor platform 24x7x365 and resolve any issues reported by monitoring application.
• Maintain the availability, integrity and confidentiality of the security platforms.
• Upgrade, remediate and patch underlying Operating Systems (Windows, Linux, ESXi, firewalls) to maintain the overall platform health.
• Write and update knowledgebase articles.
• Review design documentation to ensure they are accurate, unambiguous and verifiable.
• Conduct vulnerability scans and propose steps for remediation.
• Build and deliver custom applications and resilient systems for the security platform.
• User and groups administration.
• Work across teams to deliver and support of BT Security services features.
• Audit and maintain firewall configurations and policies.
• Support the management of relationships with specific teams, suppliers and stakeholders.
• Maintain, design, improve and support customer specific security solutions 24x7x365.
• Continuous learning and certification exams to support vendor security systems.
• UK national status required to support BT Business UK Security customers.
• Eligibility for Security Clearance (SC).

Essential Skills / Experience

• Linux Systems Administration, including:
  • Install, configure, manage, maintain.
• General IT problem solving and debugging.
  • IT troubleshooting. Network troubleshooting. Firewall troubleshooting.
  • Familiarity with ticketing and change management process and procedures.
• Ability to learn new technologies without supervision. Self-driven learning.

• Install, configure, manage, maintain.

• IT troubleshooting. Network troubleshooting. Firewall troubleshooting.
• Familiarity with ticketing and change management process and procedures.

Desirable Skills / Experience

• Troubleshoot Linux systems.
  • In-depth knowledge of SSH client and server configuration.
  • Unix/Linux shell scripting and common tools, including SELinux, FACLs, etc.
• Windows Systems Administration, including:
  • Install, configure, manage, maintain, and troubleshoot Windows systems.
  • PowerShell.
  • Microsoft Active Directory/DNS Administration.
  • Microsoft Terminal Server Administration.
  • Windows Event Log, and tools such as Winlogbeat, NXLog, Snare, etc.
• Network Administration, including:
  • Fortinet Firewalls and VPNs.
  • Cisco IOS routers, switches, and fibrechannel.
  • Networking protocols and troubleshooting.
  • Internet Protocol Version 4.
  • Internet Protocol Version 6 (it will take off someday).
• CyberArk (Idira) PAM (Privileged Account Management)
• Virtualisation, container orchestration and cloud technologies, including:
  • VMware vSphere & ESXi.
  • Docker, Kubernetes.
  • Proxmox, KVM, QEMU.
  • AWS, Azure, Google, etc.

• In-depth knowledge of SSH client and server configuration.
• Unix/Linux shell scripting and common tools, including SELinux, FACLs, etc.

• Install, configure, manage, maintain, and troubleshoot Windows systems.
• PowerShell.
• Microsoft Active Directory/DNS Administration.
• Microsoft Terminal Server Administration.
• Windows Event Log, and tools such as Winlogbeat, NXLog, Snare, etc.

• Fortinet Firewalls and VPNs.
• Cisco IOS routers, switches, and fibrechannel.
• Networking protocols and troubleshooting.
• Internet Protocol Version 4.
• Internet Protocol Version 6 (it will take off someday).

• VMware vSphere & ESXi.
• Docker, Kubernetes.
• Proxmox, KVM, QEMU.
• AWS, Azure, Google, etc.

• Opsview, Nagios, Icinga.
• Qualys.
• Crowdstrike, Wazuh.

• Ansible.
• Foreman.
• Terraform and Packer.
• Version control, e.g., Git.

• Elasticsearch/OpenSearch, Logstash, Filebeat, etc.
• Syslog-NG/Rsyslog.
• Splunk, Graylog, LogRhythm, etc.
• Grafana/Prometheus.
• Security Analytics & Correlation.

Our Package

Tailored benefits make a real difference. That’s why we offer a comprehensive range to support your growth, wellbeing, and everyday life. You can design the package to suit you and your lifestyle. Your core benefits include:

• 10% on target annual bonus
• Access to an online private GP 24/7 for you and your immediate family
• Market-leading paid carers leave with up to 2 weeks off
• Equalized maternity, paternity, and adoption leave – 18 weeks’ full pay and 8 weeks’ half pay
• Discounted EE and BT products, including mobile and broadband
• Market leading Pension scheme – 5% from you and 10% from us
• Holiday purchase scheme

You can select additional benefits, including healthcare, dental, gym memberships and more when you’re ready.

BT Group is the UK’s leading communications group and the holding company behind some of the country’s most recognised brands – including BT, EE, Openreach and Plusnet. Our purpose is as simple as it is ambitious: we connect for good. Our customers include consumers, small, medium and large businesses, public sector organisations and other communications providers.

BT Group’s role is about setting direction, unlocking value and creating the conditions for our brands and businesses to thrive.

Having come through the most capital-intensive phase of our fibre investment, our focus now is on what comes next – simplifying how we operate, using technology and AI to work smarter, and organising ourselves to serve customers better and grow sustainably. Group teams shape strategy, policy, brand, capital allocation and transformation, helping the whole organisation perform at its best.

We have a singular culture that unites all our people: we are customer-first challengers, who are committed, clear and connected. These behaviours unite us as one team to deliver for our colleagues, our customers, our stakeholders and the country. Joining BT Group means working at the heart of a business that matters to the UK, with the opportunity to shape decisions, influence outcomes and help set the future course of one of the country’s most important companies.