> Markdown version of [/jobs/ext/3296277-network-security-specialist](https://www.wearedevelopers.com/jobs/ext/3296277-network-security-specialist). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Network Security Specialist

- **Company:** BT Group
- **Location:** Sheffield, UK (Remote available)
- **Contract:** Permanent contract
- **Skills:** Agile Methodology, Cisco PIX, Complex Networks, Cyber Security, Computer Networks, Continuous Delivery, Network Security, Open Systems Interconnection (OSI), TCP/IP, Website Wireframe, Load Balancing, Firewalls (Computer Science), Fortinet, Firepower
- **Published:** September 4, 2026
- **Apply:** https://uk.indeed.com/viewjob?jk=0b2b100ca4f92100

## About the Role

Minimum of CCNP +/ Equal Certification plus the below Firewall Engineering Skillset:
o Fortinet
o Cisco ASA, ISE & FirePower
o Palo Alto
o Checkpoint
o ZScaler
o F5 Load balancer

 * 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
 * Always Maintain appropriate levels of clearance (MPS, NPPV3 & SC clearances at time of writing)
 * Design user journeys, service maps, documentation, user flows and wireframes
 * Collaborate with Product and Engineering colleagues. Facilitate workshops and design sprints.
 * Skilled in building strong relationships across multiple teams

## Description

This role exists to provide specialist technical support on complex network security operations for our UK secure contracts. Utilising Network Security, Firewall and load balancing skillsets. 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., * 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.

 * Provide leadership on Agile / ITIL processes and be a decision maker within the security team; Advising those who will be working directly with yourself on best practices and able to support from a 3rd Line Lead perspective.
 * Develop peers and colleagues within the team through mentoring and leadership providing trustworthy honest feedback.
 * Produce and support polices, functions and configuration builds to allow implementation of customer projects.


## Related Videos

- [WeAreDevelopers LIVE - Back to CODE100](https://www.wearedevelopers.com/videos/1909-wearedevelopers-live-back-to-code100)
- [An Applied Introduction to eBPF with Go](https://www.wearedevelopers.com/videos/1075-an-applied-introduction-to-ebpf-with-go)
- [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure)
- [Turning Container security up to 11 with Capabilities](https://www.wearedevelopers.com/videos/718-turning-container-security-up-to-11-with-capabilities)
- [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers)
- [Debunking the Top 10 Myths about Web 3](https://www.wearedevelopers.com/videos/634-debunking-the-top-10-myths-about-web-3)

## Related Articles

- [9 Ways to Make Money Hacking](https://www.wearedevelopers.com/magazine/333-9-ways-to-make-money-hacking)
- [Events like RSAC Get You CISOs. Developers Decide What Actually Gets Deployed.](https://www.wearedevelopers.com/magazine/693-events-like-rsac-get-you-cisos-developers-decide-what-actually-gets-deployed)
- [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again)
- [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers)
- [Understanding and Mitigating Common Web Vulnerabilities](https://www.wearedevelopers.com/magazine/565-understanding-and-mitigating-common-web-vulnerabilities)
- [7 Important Tips That Every Software Developer Should Know](https://www.wearedevelopers.com/magazine/101-7-important-tips-that-every-software-developer-should-know)