> Markdown version of [/jobs/ext/2174894-security-engineer-f5-zscaler-uk-wide-hybrid-outside-ir35](https://www.wearedevelopers.com/jobs/ext/2174894-security-engineer-f5-zscaler-uk-wide-hybrid-outside-ir35). 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). --- # Security Engineer (F5 - Zscaler) - UK Wide (Hybrid) - Outside IR35 - **Company:** iBSC - **Location:** UK - **Contract:** Temporary contract - **Skills:** IEEE 802.1X, Cyber Security, Data Centers, Dynamic Multipoint Virtual Private Networks, Domain Name System (DNS), Internet Protocol Security (IP SEC), Network Security, Routing, Wide Area Networks, Firewalls (Computer Science), Juniper, SC Clearance, Wireless Technologies, Cisco, SSL VPN - **Published:** August 22, 2026 - **Apply:** https://www.careerboard.com/pt/en/find-jobs-in-United-Kingdom/-38273E7B74667D997C/ ## About the Role * Recent hands-on experience with F5 * Recent hands-on experience with Zscaler * Recent hands-on experience with Palo Alto * Security infrastructure design and support * HLD/LLD production * Firewall rule base changes * Incident escalation and vendor support * Change management * Network and security life cycle management * SC clearance required * BPSS essential Desirable/Bonus Skills * Check Point * Juniper * Blue Coat * Cisco switching * Wireless technologies * Cisco IPT/QoS/802.1X * Infoblox DNS * IPsec, SSL VPN and DMVPN * WAN technologies and routing protocols ## Description We are looking for an experienced Security Engineer Authority to support a major data centre network build programme. The role will provide senior technical ownership across the security infrastructure estate, including design, change, incident escalation, Firewall rule changes, documentation and life cycle management. ## Related Videos - [How Cisco embraced a DevOps culture within its network engineering team](https://www.wearedevelopers.com/videos/99-how-cisco-embraced-a-devops-culture-within-its-network-engineering-team) - [Creating a routing app with Google Maps API from scratch](https://www.wearedevelopers.com/videos/831-creating-a-routing-app-with-google-maps-api-from-scratch) - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [Computer Vision from the Edge to the Cloud done easy](https://www.wearedevelopers.com/videos/263-computer-vision-from-the-edge-to-the-cloud-done-easy) - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) - [A Technical Introduction to Bitcoin's 2nd Layer- The Lightning Network](https://www.wearedevelopers.com/videos/15-a-technical-introduction-to-bitcoin-s-2nd-layer-the-lightning-network) ## Related Articles - [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk) - [Software Engineer Salary London](https://www.wearedevelopers.com/magazine/252-software-engineer-salary-london) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [9 Ways to Make Money Hacking](https://www.wearedevelopers.com/magazine/333-9-ways-to-make-money-hacking) - [IT Salaries in UK](https://www.wearedevelopers.com/magazine/288-it-salaries-in-uk) - [Best Companies to work for in London: Top 25 Companies in 2023](https://www.wearedevelopers.com/magazine/187-best-companies-to-work-for-in-london-top-25-companies-in-2023)