Onsite in Bracknell
Eligible for DV clearance
65-70k per annum + benefits package
We are seeking an experienced Security Application Architect to support the delivery and ongoing evolution of a secure Gateway capability for a strategic UK defence customer. This role combines architectural ownership, secure design governance, and operational assurance within a high-security, mission-critical environment. You'll shape technical direction, drive change, and ensure resilient, compliant solution delivery across engineering and support teams.
What you'll be doing;
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
Assist in maintaining secure, resilient and scalable infrastructure components across Windows and Linux environments
Support monitoring and investigation of communications platforms such as email and XMPP-based chat, including the ability to review underlying conversation data where required for security analysis
Contribute to file validation and inspection processes, ensuring transferred files conform to expected formats and security controls
Your technical background;
Core Infrastructure
VMware / vSphere
RHEL & Windows Server
Microsoft Services
Active Directory, including Group Policy (GPO), DNS integration, LDAP directory structures, and directory management/maintenance
Resource management of server platforms and optimisation of system performance
Trellix / McAfee security platforms
SIEM integration, including syslog creation, forwarding and reporting pipelines
Email security standards and protocols
Linux & Platform Engineering
Experience working within Red Hat Enterprise Linux environments
Ability to write scripts to automate operational or security processes
Familiarity with pattern matching techniques and regular expressions (Regex), particularly within security or antivirus tooling
Configuration and management of the standard RHEL firewall
Exposure to Linux-based security tooling and antivirus technologies
Gateway Technologies
Understanding of Gateway appliances and associated software
Knowledge of secure communications protocols, including messaging platforms such as XMPP
Security & Web
Experience supporting file validation, inspection, and content verification within secure transfer environments
If you are interested in discussing this Application Security Architect role further, please reply back with a copy of your updated CV.