3rd Line Network & Security Specialist – 24×7 Shift

Overview

In this role you provide expert security and network support on complex issues within a secure, on-site environment. You will lead technical delivery for security incidents and projects, collaborating with BT and third-party engineers to meet tight SLAs. As a subject matter expert, you’ll guide design teams and act as the operational single point of contact for customer contracts. The role supports a multi-year transformation to modernise services and strengthen cyber capability, offering meaningful impact at scale.

Pay / Benefits

• 10% on target annual bonus
• Online private GP 24/7
• Paid carers leave
• Maternity, paternity, and adoption leave
• Pension scheme – 5% from you and 10% from us
• Holiday purchase scheme

Responsibilities

• Act as SME across a wide range of security technologies and products
• Detect, respond to, and resolve complex security incidents and changes
• Provide 3rd line support for high-priority incidents within SLA
• Serve as the technology SME for specialised products and services
• Be the operational SPOC for design or customer contract teams
• Deliver RCAs and contribute to PIRs when required

Key requirements

• Operational experience across Network Engineering and Security Operations with strong stakeholder management
• Hands-on experience with Cisco Firewalls, Checkpoint Firewalls/IPS, F5, Cisco WSA/ESA/ISE, Ivanti Pulse VPN, switches and routers
• Certifications or relevant practical experience in the listed technologies
• Ability to lead and coordinate major/complex security and network incidents with cross-team collaboration

• Stakeholder management
• On-site client communication and coordination
• Leadership during incident scenarios
• Cisco Firewalls
• Checkpoint Firewalls/IPS
• F5 Load Balancing

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