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# Network Security 2nd Line Firewall Engineers

- **Company:** BT Group
- **Location:** Hatfield, UK
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Amazon Web Services, Microsoft Azure, Bash Shell, Cisco PIX, Complex Networks, CompTIA Network+, Cyber Security, Computer Networks, Continuous Delivery, Data Centers, Python (Programming Language), Open Systems Interconnection (OSI), SAP (Applications), TCP/IP, Load Balancing, Integration Tests, Fortinet, Firepower, Golang
- **Published:** August 13, 2026
- **Apply:** https://www.careerjet.co.uk/job/gba3dee40096b0730c8f593112ef010104/eaa

## About the Role

PLEASE NOTE BEFORE APPLYING: Role requies SC (Security Clearance) Minimum 5 years UK working history

## Description

Our purpose is to use the power of communication to make a better world. For each other, for our customers, for society and our communities.
This role exists to provide specialist technical support on complex network security and cyber security deployments for any and all of our UK contracts. Building intermate working relationships and trust through effective communication and meeting expectation and deadlines is key. Liaising with customer representatives or vendors and directing other support staff where appropriate will form part of the role.
What you'll be doing
One key thing that all of our engineers have in common is a desire to develop/deliver brilliant, industry redefining platforms as well as their own skills.
We need you to be a cyber incident decision maker, responsible for ensuring that mitigation controls and incident response are appropriate
Providing 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
Positively support team leader and line manager.
Ensure full awareness of the need to safeguard sensitive customer information at all times, so that customers perceive BT to be a trustworthy organisation.
Essential Skills / Experience
You're a hands on engineer with expertise in at least one platform or programmes below - if your experience doesn't match our stack exactly then don't worry, we hire based on engineering talent, not vendor or language-specific skillset. Interested in us? We're interested in you!
o Comptia Network + & Security +
o Fortinet
o Cisco ASA & FirePower
o Palo Alto
o Azure / AWS
o Python, Go, Bash
o Native Cloud Security
o Linux/Unix OS
o 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
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