> Markdown version of [/jobs/ext/1557073-principal-security-engineer](https://www.wearedevelopers.com/jobs/ext/1557073-principal-security-engineer). 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). --- # Principal Security Engineer - **Company:** LA International Computer Consultants - **Location:** UK - **Salary:** £91,000.0 - £93,600.0 - **Contract:** Temporary contract - **Skills:** IEEE 802.1X, Cyber Security, Dynamic Multipoint Virtual Private Networks, Domain Name System (DNS), Internet Protocol Security (IP SEC), Routing, Remote Access Technology, Wide Area Networks, Computer Networking Systems, Firewalls (Computer Science), Juniper, SC Clearance, Wireless Technologies, Cisco, SSL VPN - **Published:** July 9, 2026 - **Apply:** https://www.careerboard.com/pt/en/find-jobs-in-United-Kingdom/-D5CE5811C0CACF15F1/ ## About the Role Must Have F5, Zscaler & Palo Alto knowledge and recent hands on with these technologies. - Nice to have is Checkpoint, Juniper, Bluecoat, and knowledge of Cisco networking solutions including all the major switching families and understanding of Wireless Technologies and Cisco IPT/QoS/802.1x/Inflobox DNS. - VPN Technologies (ipsec, SSL VPN, DMVPN and Wide Area network technologies including routing protocols. ## Description This is a 6 months contract initially and the role is outside IR35. Vast majority of work is expected to be remote - however there may be occasional travel to customer sites: Warwick/Wokingham/Corsham/Farnborough. Please note that due to the nature of the role SC clearance is required. Deliverables: -Technical Ownership of the Customers Security infrastructure estate, processes procedures, documentation and life cycle management. -Senior Technical point of reference for all Security related projects, Changes or modifications to Firewall rule bases - Senior technical point of reference/escalation and interface into vendor support for all Incidence related to the security infrastructure. - Design of customer networks including the support of High Level and Low Level designs. Providing technical support, Change management, for hard (physical) and soft (remote) changes. Customer inventory management, Hardware software, EOL. ## 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) - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [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) - [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) - [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) - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) ## Related Articles - [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) - [Dev Digest 134 - Where pixels sing?](https://www.wearedevelopers.com/magazine/477-dev-digest-134-where-pixels-sing) - [Understanding and Mitigating Common Web Vulnerabilities](https://www.wearedevelopers.com/magazine/565-understanding-and-mitigating-common-web-vulnerabilities) - [The Overflow: Security and Privacy](https://www.wearedevelopers.com/magazine/715-the-overflow-security-and-privacy) - [The Overflow: 5 Security and Privacy Tools for Developers](https://www.wearedevelopers.com/magazine/710-the-overflow-5-security-and-privacy-tools-for-developers) - [9 Ways to Make Money Hacking](https://www.wearedevelopers.com/magazine/333-9-ways-to-make-money-hacking)