> Markdown version of [/jobs/ext/2260450-lead-security-architect](https://www.wearedevelopers.com/jobs/ext/2260450-lead-security-architect). 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). --- # Lead Security Architect - **Company:** Post Office Ltd - **Location:** UK - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Cloud Computing, Cyber Security, Cyber Threat Analysis, HybridCloud - **Published:** August 26, 2026 - **Apply:** https://www.collegerecruiter.com/job/2815169962-lead-security-architect ## About the Role * Professional experience in IT, with a focus on cybersecurity * Technical leadership experience, demonstrating the ability to lead security initiatives and collaborate across teams * Deep understanding of cybersecurity threats, technologies, and best practices * Experience with modern digital architectures such as cloud, data, API, digital, and mobile * Knowledge of security domains including endpoint, network, data, hybrid cloud security, and zero trust strategies * Experience in leading threat modelling sessions. * An enabler who can speak with knowledge and confidence in their subject matter, guiding their team to success. * Excellent influencing and communication skills with the ability to utilise a range of techniques to deliver messages effectively, make an impact, and drive a successful outcome. ## Description Lead Security Architect at Post Office Ltd Reporting Line: Head of Enterprise Security Architecture Contract type: Permanent Grade: 3A What to expect The Lead Security Architect will design and review system architectures, align with POL's technology principles, and collaborate across functional areas to develop a cohesive security strategy. Support transformation initiatives, establish design principles, and regularly update security measures to mitigate emerging threats and risks. Ensuring POL's Security Architecture capability is effective and minimises risks of compromise and disruption. The Lead Security Architect is a key member of the CISO team, responsible for the delivery of functional strategies, always modelling the Post Office behaviours and demonstrating a Postmaster first mindset. What we can do for you * 27.5 days annual leave that increases with tenure * Up to 18% on target bonus opportunity * Income protection after 12 months service * Full support from our employee assistance programme and access to our employee benefits platform * Ever-evolving learning and development opportunities What you'll need to succeed * Professional experience in IT, with a focus on cybersecurity * Technical leadership experience, demonstrating the ability to lead security initiatives and collaborate across teams * Deep understanding of cybersecurity threats, technologies, and best practices * Experience with modern digital architectures such as cloud, data, API, digital, and mobile * Knowledge of security domains including endpoint, network, data, hybrid cloud security, and zero trust strategies * Experience in leading threat modelling sessions. * An enabler who can speak with knowledge and confidence in their subject matter, guiding their team to success. * Excellent influencing and communication skills with the ability to utilise a range of techniques to deliver messages effectively, make an impact, and drive a successful outcome. About us Post Office is a community staple. We're trusted. We're relatable. We're reliable. We're steeped in tradition. But we're on a journey of transformation. We're focused on the future and working at pace to compete in a digital world to provide the same, personalised experience we've always been proud of - and we need fresh talent to help make it possible. We're looking for people to come to Post office to re-imagine. Authentic people who rise to big challenges and make big changes. We all have a genuine duty of care for the people we serve - a purpose that guides us forward, no matter what. We're looking for people who share in that purpose and show that now, and moving forwards, Post Office truly is Everybody's Business. Post Office is an equal opportunity employer. We value and celebrate the differences among our people, ensuring that our practices reflect our dedication to inclusivity and equal representation for all. Referrals increase your chances of interviewing at Post Office Ltd by 2x ## Related Videos - [Green Cloud Computing](https://www.wearedevelopers.com/videos/592-green-cloud-computing) - [Thinking Differently - How to Make Money from Cyber Attacks & Cheats](https://www.wearedevelopers.com/videos/745-thinking-differently-how-to-make-money-from-cyber-attacks-cheats) - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [Cyber Security: Small, and Large!](https://www.wearedevelopers.com/videos/259-cyber-security-small-and-large) - [Lessons learned from observing a billion API requests](https://www.wearedevelopers.com/videos/1574-lessons-learned-from-observing-a-billion-api-requests) - [WebAssembly: The Next Frontier of Cloud Computing](https://www.wearedevelopers.com/videos/972-webassembly-the-next-frontier-of-cloud-computing) ## 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) - [Understanding and Mitigating Common Web Vulnerabilities](https://www.wearedevelopers.com/magazine/565-understanding-and-mitigating-common-web-vulnerabilities) - [What Are The Top Skills Required For Azure Developers?](https://www.wearedevelopers.com/magazine/77-what-are-the-top-skills-required-for-azure-developers) - [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers) - [9 Ways to Make Money Hacking](https://www.wearedevelopers.com/magazine/333-9-ways-to-make-money-hacking) - [Navigating the AI Shift](https://www.wearedevelopers.com/magazine/629-navigating-the-ai-shift)