Onsite in Bracknell
Eligible for DV clearance
£50-55K per annum + benefits package
Join a high-impact engineering team delivering a secure Gateway solution for a major UK defence customer. This is a hands-on Security Application Architect role where you'll design, implement and troubleshoot mission-critical infrastructure in a live, security-sensitive environment. Working alongside senior architects and engineering leads, you'll play a key role in maintaining availability, supporting operational teams, and driving technical change across complex systems.
What You'll Be Doing
Identify and implement infrastructure and application changes to support Gateway functionality and availability
Produce detailed technical designs for change alongside the customer and Programme Manager
Work daily with the Solution Owner and Engineering Lead to deliver engineering outcomes
Provide technical support to SOC and 3rd Line teams, troubleshooting complex incidents
Configure and support Gateway appliances and associated software
Maintain high availability, resilience and security posture
Your Technical Background
You'll bring strong hands-on experience across:
Infrastructure
VMware / vSphere
RHEL & Windows Server
Trellix
SIEM platforms
Linux & Scripting
Shell scripting
REGEX
Firewall configuration
Microsoft Stack
Active Directory
DNS
RDS
Applications & Protocols
LDAP
Email, Chat & File standards
Web & Chat protocols
XML & JSON schema
LDIF
TLS server/client certificates
File type digital formats
Gateways
Deployment, configuration and support of Gateway appliances and their software
What We're Looking For
A self-starter comfortable working independently and collaboratively
Strong troubleshooting mindset
Clear written and verbal communication skills
Comfortable interacting with stakeholders at all levels
Willing and able to travel weekly within the South / Southwest at short notice
If you are interested in discussing this Application Security Design Engineer role further, please reply back with a copy of your updated CV