Job Req ID: 63674
Posting Date: 23rd October 2026
Function: Cyber Security
Hours: Full Time (Shift)
Location: Manchester
Salary: Competitive + Benefits (Internal banding D)
BEFORE APPLYING PLEASE NOTE: All candidates must be commutable to Manchester, hold or able to hold SC (security clearance - minimum 5 years UK working history) and be a sole UK National Passport holder.
About the role
As a Secure Networks Security Specialist, you’ll be a senior technical expert within our Secure Networks team, helping protect and support critical customer network environments.
Operating from a 3rd-line subject matter expert perspective, you’ll provide deep technical expertise across complex network security services and act as a key escalation point when incidents, changes or technical challenges require specialist knowledge.
You’ll lead the technical response to complex and critical incidents, provide oversight of higher-risk changes and help guide technical decision-making across multi-customer and multi-vendor environments.
Beyond resolving immediate issues, you’ll use your expertise to strengthen service resilience, develop technical capability across the team and identify opportunities for automation and continuous improvement.
What you’ll be doing
• Providing 3rd-line technical leadership and SME expertise across Network Security Operations, acting as a key escalation point for complex technical issues.
• Leading the technical resolution of complex and critical P1/P2 security incidents, providing clear technical direction through to service restoration.
• Providing specialist troubleshooting where incidents cannot be resolved through standard operational or 2nd-line support.
• Leading or providing technical assurance for complex and higher-risk network security changes, ensuring they are appropriately assessed, peer-reviewed and risk-managed.
• Providing deep technical expertise across network security technologies and services, including firewalls, VPNs, secure connectivity and threat protection.
Desirable Skills / Experience
It would be great if you have experience across some of the following:
• Complex, multi-customer or multi-vendor security environments
• Industry-recognised security or networking certifications, such as Palo Alto PCNSE, or equivalent practical experience
• Automation or scripting within network or security operations
• Technical or service design and producing high-quality technical documentation
• ITIL incident, problem and change-management practices
You’ll be someone who remains calm when dealing with complex or high-impact incidents and can provide clear technical direction when others need your expertise.
You’ll be able to simplify complex technical information for different audiences, challenge constructively and build strong relationships across Engineering, Product, Operations and customer teams.
Essential Skills / Experience
We're looking for three core areas of experience:
3rd-line network security expertise
• Significant hands-on experience operating as a 3rd-line Network Security Engineer, escalation point or SME across a large scale or 24/7 Network or Security Operations environments, with strong technical knowledge of firewalls, VPNs, secure connectivity and associated network security technologies (Palo Alto, F5 Load Balancers and Web Application Firewall, Forescout NAC, Netskope).
Complex incident and change leadership
• Proven experience leading the technical resolution of complex or critical P1/P2 incidents and providing technical leadership or assurance for complex, higher-risk network security changes within live operational environments.
Technical leadership and continuous improvement
• Experience using deep technical expertise to solve recurring problems, improve service resilience and develop technical capability, including mentoring engineers and contributing to automation, technical design or operational improvements.
Our Package
• Competitive salary and on-target bonus plan
• Flexible and smart working
• Training and development opportunities
• Competitive share options and pension scheme
• Access to discounts on BT & EE products
• 25 days annual leave (not including bank holidays)
• 3 days paid volunteering a year
• Weekly Hours: 37.5 (Shift pattern)
• Salary: Level D
• Position Type: Full-time
• Contract: Permanent
Join us at a pivotal moment for BT Business. We are executing a multi-year transformation to restore growth, modernise at scale and unlock new markets beyond connectivity. Our ambition is clear – return to sustainable revenue and EBITDA growth, strengthen our market position, and deliver meaningful shareholder value through disciplined execution and bold reinvention.
We are fundamentally reshaping the business – simplifying our portfolio, digitising our customer experience and building market-leading capability across cyber, AI and managed services, all powered by the UK’s leading fixed and mobile networks. This is a shift from a legacy connectivity provider to a modern, solutions-led, AI-first business that can truly differentiate in a competitive and fast-moving market.
With execution momentum building and a clear path to growth, the opportunity now is to scale what works, accelerate performance and fully realise our potential. This is about delivering against ambitious financial outcomes while transforming how we operate – creating a business that is simpler, faster, more innovative and easier to do business with.
If you want to be part of the team shaping the turnaround of a multi-billion-pound business – and building a stronger, more competitive BT for the future – this is your moment.
