Job Req ID: 63673
Posting Date: 21/10/2026
Function: Cyber Security
Location: Manchester
Salary: Competitive + Benefits (Internal band E)
PLEASE NOTE BEFORE APPLYING: Role requires SC (security clearance) all candidates must be a sole UK national Passport holder with a minimum of 5 years UK working histrory.
About the role
As a Secure Networks Security Professional, you’ll play a hands-on role in protecting and supporting critical customer network environments.
Working within our Secure Networks team, you’ll provide 2nd-line technical support across a complex, multi-customer and multi-vendor security environment. You’ll diagnose and resolve network security incidents, implement approved changes and help ensure our customers’ services remain secure, stable and available.
You’ll work across technologies including firewalls, VPNs, secure connectivity and threat protection, taking ownership of operational issues and working with specialist teams when deeper technical expertise is required.
This is a great opportunity for an experienced Network Security Engineer who enjoys hands-on troubleshooting and wants to develop their security expertise in a large-scale operational environment.
Security requirement: This role supports a major UK defence security partnership. You must therefore be eligible to obtain the required UK Security Clearance and be a sole UK national passport holder.
What you’ll be doing
• Providing hands-on 2nd-line Network Security support, diagnosing and resolving incidents affecting customer services.
• Taking ownership of security incidents, including P1/P2 incidents, troubleshooting issues through to resolution and escalating to specialist teams where required.
• Implementing approved network security changes in line with established change, risk and governance processes.
• Supporting the security, stability and availability of customer environments, proactively identifying and resolving operational issues.
• Working across technologies including firewalls, VPNs, secure connectivity and threat protection.
Essential Skills / Experience
We're looking for three core areas of experience:
• Experience supporting network security technologies in a live 24/7 Network Security Operations environment, with practical knowledge of firewalls, VPNs, secure connectivity and associated network security technologies.
Network security incident troubleshooting and resolution
• Strong hands-on troubleshooting experience diagnosing and resolving network or network security incidents, including experience supporting high-priority P1/P2 incidents and taking issues through to resolution or appropriate technical escalation.
Technology
• Experience across some of the following technologies; Palo Alto Firewalls, Palo Alto, Panorama, F5 Load Balancers and Web Application Firewall, Forescout NAC, Netskope, VPN and secure connectivity technologies
Desirable Skills and Experience
It would be great if you have experience with some of the following:
• Experience implementing technical changes within established change, risk and governance processes, ideally within a complex, multi-vendor or multi-customer environment, with an understanding of ITIL/service-management practices.
• Industry-recognised networking or security certifications, such as Palo Alto qualifications, or equivalent practical experience
You’ll also be someone who takes ownership, remains calm when dealing with high-priority incidents and approaches troubleshooting in a structured and methodical way. You’ll communicate technical information clearly, collaborate well with others and be motivated to continue developing your network security expertise.
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
• Salary: Level E
• 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.
