Network Security Specialist

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Network Security Specialist

Posting Date: 27 Jul 2025

Function: Service

Unit: Business

Location:

Hatfield Business Park, Hatfield, United Kingdom

Function: Service

Locations: Hatfield, Belfast, Sheffield

Salary: Competitive + Benefits

This role requires the successful candidate to either hold or be eligible to obtain Security Check (SC) clearance

• Provide leadership on Agile / ITIL processes and be a decision maker within the security team; advising colleagues on best practices and supporting from a 3rd Line perspective.
• Develop peers and colleagues through mentoring and leadership, providing trustworthy, honest feedback.
• Produce and support policies, functions, and configuration builds for customer projects.
• Complete and own integration testing on new products and services, producing all relevant supporting documentation.
• Ensure full awareness of the need to safeguard sensitive customer information, maintaining BT's trustworthiness.
• Experience in agile, lean, evidence-based, and human-centered design frameworks.
• Able to simplify complex ideas and communicate them clearly.
• Design user journeys, service maps, documentation, user flows, and wireframes.
• Motivated team player, able to work collaboratively on features impacting customers.
• Own production platforms and products from inception to continuous improvement.

What we'd like to see on your CV:

• FCSS / CCNP or Fortinet Network Security Certification
• Nutanix Certified Associate (NCA)
• Experience with WAF/Load balancer
• Knowledge of Dynamic Routing Protocols
• Experience in prototyping and testing solutions, with a focus on lean and iterative development.
• Familiarity with designing user journeys, service maps, documentation, user flows, and wireframes.
• Salary with benefits, including a 10% on-target bonus, 25 days annual leave (plus holidays), flexible benefits, training opportunities, and employee schemes.
• Family leave: 18 weeks full pay, 8 weeks half pay, 26 weeks statutory.

Flexible Working - BT offers hybrid working, allowing 2 days remote work per week, with 3 days at the contractual location.

Part-time and job-share options are considered.

BT has a heritage of over 175 years, serving 1.2 million business customers globally, providing secure connectivity and collaboration platforms.

We value diversity and inclusion, promoting digital skills and a positive impact on society.

We encourage applications from all backgrounds, including those requiring flexible working arrangements or reasonable adjustments during the selection process.