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Network Security Specialist
Network Security Specialist
Job Title
Network Security Specialist Cyber Security – Career Grade D – Competitive Salary + Benefits
Key Details
- Req ID: 57358
- Location(s): GBR Belfast, GBR Sheffield, GBR London (BT HQ One Braham), GBR Manchester
- Recruiter: Jayson Coley-Wynters
- Posting Period: 17/06/2026 – 01/07/2026
- Internal Closing Date: 12th June 2026
- Security Clearance Required: SC & NPPV (minimum 5 years UK working history)
About This Role
BT Business is expanding its Cyber Security capabilities, and we’re seeking an experienced Network Security Specialist to provide specialist technical support across our UK secure contracts.
At BT, collaboration, trust, and leadership are key. You’ll build strong working relationships with teams, clients, and vendors, delivering expert advice to meet deadlines while fostering a culture of mentorship and innovation.
If you’re driven by continuous improvement, possess client-focused and mental resilience skills, and thrive in dynamic environments, we want to hear from you.
Key Responsibilities
- Lead Agile / ITIL processes in network security, setting industry standards.
- Ensure end-to-end cyber security solutions through selective intervention from a 3rd-line lead perspective.
- Mentor and develop peers, offering constructive feedback and supporting career growth.
- Adapt to rapidly evolving threats, analysing risks, testing solutions, and deploying lean iterations.
- Collaborate with cross-functional teams to improve product designs—including journey maps, service blueprints, and documentation.
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What We Look For
Required Skills & Certifications
-
Professional certifications in security domains, including (but not limited to):
- Fortinet NSE 7
- Cisco CCNP (Cisco FirePower, ASA, CX)
- Checkpoint CCSE
- Palo Alto PCNSE
-
Technologies: Hands-on experience is expected, including:
- Firewalls: Fortigate, Cisco ASA/FirePower, Palo Alto Networks, Checkpoint NetScaler
- Networking: Cisco ISE, F5
- Security in Cloud: Native Cloud Security models
- Network Prototypes: Strength in Python, Go, Bash programming or scripting.
- OS Platforms: Linux / Unix, Windows environments
-
Process & Methodology Skilled:
- Rapid prototyping & testing of solutions
- Designing secure architecture and user flows
- Iterative, lean methodologies for change
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Experience & Mindset
- Strong foundation in network security operations with third-line decision-making ability.
- Ability to coach and support entry-level teams while ensuring high-quality, client-first outcomes.
- Must be detail-oriented, with a track record of predictable deliverables.
- Innovative problem-solver who can balance tactical execution against strategic network security improvements.
Who We Are
At BT Business, our 180-year heritage is built on empowering businesses of all sizes—from government agencies to startups—to thrive through secure cloud connectivity, collaboration, and future-ready technologies.
We live by values of being Customer-First, Committed, Clear, and Connected. We champion diversity, invest in equitable opportunities, and implement inclusive hiring practices. Our digital inclusion programme aims to equip institutions and individuals with the skills needed to succeed.
By joining BT, you contribute to extraordinary outcomes—where innovation is standard practice, and leader development is continuous.
Let’s secure the future, together.
Apply before the 12th June 2026.
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