Network Security Specialist

Salary: £36,000 - 67,000 per year

Requirements:

• Comptia Network + & Security +
• Fortinet
• Cisco ASA & FirePower
• Palo Alto
• Azure / AWS
• Python, Go, Bash
• Native Cloud Security
• Linux/Unix OS
• Windows OS
• Knowledge and understanding of TCP/IP & OSI seven-layer model and how data networks are structured and operate.
• Knowledge of the best engineering practices and continuous delivery.
• Always maintain appropriate levels of clearance (MPS, NPPV3 & SC clearances).

Responsibilities:

• Develop and deliver brilliant, industry redefining platforms as well as your own skills.
• Act as a cyber incident decision maker, ensuring that mitigation controls and incident response are appropriate.
• Provide security advice and remediation to Lines of Business within BT and external customers.
• Complete and own integration testing on new products and services, producing all relevant supporting documentation.
• Support the team leader and line manager.
• Ensure full awareness of the need to always safeguard sensitive customer information.

Technologies:

• AWS
• Azure
• Bash
• Cloud
• Cisco
• Support
• Linux
• Network
• Python
• Security
• TCP/IP
• Unix
• Windows
• LESS
• Mobile

More:

At BT, our purpose is to use the power of communication to make a better world for our customers and communities. We provide specialist technical support on complex network security and cyber security deployments for all our UK contracts. Our team fosters intermate working relationships and trust through effective communication. We offer 10% on target bonus, a BT Pension scheme with generous contributions, and 25 days of annual leave that increases with service. Our diverse and inclusive environment encourages innovation and the opportunity to make a significant impact. Join us in London, Sheffield, or Belfast to be part of a B2B powerhouse that serves millions globally.

last updated 35 week of 2026