> Markdown version of [/jobs/ext/4000384-application-security-architect](https://www.wearedevelopers.com/jobs/ext/4000384-application-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). --- # Application Security Architect - **Company:** CBS Butler Limited - **Location:** Bracknell, UK - **Salary:** £70,000.0 - **Contract:** Permanent contract - **Skills:** Microsoft Windows, Active Directory, Linux, Domain Name System (DNS), JSON, Lightweight Directory Access Protocols (LDAP), Windows Servers, Red Hat Enterprise Linux, Regular Expressions, Shell Script, Security Information and Event Management, VMware VSphere, Extensible Markup Language (XML), Software Security, Firewalls (Computer Science), Vmware - **Published:** October 29, 2026 - **Apply:** https://www.adzuna.co.uk/jobs/details/5944451744 ## About the Role * Experienced Security Application Architect * Strong design and development background * Proven experience with Gateway technologies * Knowledge of Infrastructure & Platforms (VMware/vSphere, RHEL, Windows Server) * Familiarity with Trellix SIEM platforms * Understanding of Identity & Directory Services (Active Directory, DNS, LDAP, LDIF) * Experience with Gateway appliances and associated software * Proficient in Email, Chat, and File standards * Knowledge of Web and Chat protocols (XML, JSON schema, TLS server/client certificates) * Understanding of digital file format handling * Familiarity with Linux & Networking * Proficient in Shell scripting and REGEX * Fluent in Firewall technologies * Self-motivated and able to work autonomously * Strong stakeholder engagement skills * Ability to communicate effectively at technical and leadership levels * Willingness to travel weekly within the South/Southwest region at short notice ## Description * Own and design technical changes required to maintain and enhance Gateway capability * Produce high-quality design documentation in collaboration with the customer and Programme Manager * Support solution governance and architectural integrity * Ensure ongoing availability, resilience, and security compliance * Provide architectural guidance during troubleshooting and incident resolution * Act as a key technical interface between engineering delivery and operational support teams Technologies: * Active Directory * Architect * Firewall * Support * JSON * LDAP * Linux * RHEL * Security * VMware * Web * Windows * XML