Salary: £65,000 - 70,000 per year Requirements: Design and development background in secure or Gateway-based environments Experience with core infrastructure technologies Proficiency in VMware / vSphere Familiarity with RHEL & Windows Server Knowledge of Trellix and SIEM Understanding of Microsoft Services, Active Directory, and DNS Experience with RDS and networking technologies Familiarity with Citrix NetScaler and Wireshark Knowledge of storage solutions like NetApp SAN and NAS Experience with backup solutions Understanding of security protocols, Gateway appliances, and PKI management applications Strong documentation skills Self-motivated and able to work under guidance Strong interpersonal skills Willingness to travel weekly within the South / Southwest region Responsibilities: Contribute to infrastructure and Gateway design changes to maintain availability and performance Produce structured design documentation alongside the customer and Programme Manager Support architectural governance and ensure alignment to solution intent Provide technical oversight during incident troubleshooting with SOC and 3rd Line teams Assist in maintaining secure, resilient, and scalable infrastructure components Technologies: Active Directory Architect Citrix Support RHEL Security VMware Windows Web More: We are recruiting an Application Architect to support the ongoing evolution of a Gateway solution for a strategic UK defence customer in Bracknell. This is a development opportunity for an aspiring architect looking to build design authority and architectural experience in a high-assurance setting. We offer a competitive salary of £65-70K per annum along with a benefits package. You will work in a mission-critical environment alongside senior solution leaders, contributing to secure design, controlled change, and operational resilience. last updated 8 week of 2026