Job

Job

Application Design Engineer

Job type:Perm
Town/City:Bracknell
County:Berkshire
Salary/Rate:£50000 - £55000 per annum + Benefits package
Business Sector:IT
Job ref:LFI - 153992
Post Date:February 23, 2026

Application Design Engineer
Onsite in Bracknell
Eligible for DV clearance
£50-55K per annum + benefits package

Step into architecture while staying hands-on. We're seeking an Application Design Engineer to support delivery of a secure Gateway solution for a major UK defence customer. This is an opportunity for a strong infrastructure/design engineer to broaden into architecture while working on mission-critical systems in a high-security environment. You'll help implement change, maintain availability, and support operational teams within a live, complex infrastructure landscape.

What You'll Be Doing

  • Identify and implement technical changes to support Gateway capability and maintain availability

  • Produce designs for change in collaboration with the customer and Programme Manager

  • Work daily with the Solution Owner and Engineering Lead on technical delivery tasks

  • Support SOC and 3rd Line teams in troubleshooting incidents and resolving complex issues

  • Assist with configuration and ongoing support of Gateway appliances and associated platforms

Your Technical Background

You'll bring solid hands-on experience across infrastructure and gateway environments, including:

Infrastructure

  • VMware / vSphere

  • RHEL & Windows Server

  • Trellix

  • SIEM platforms

Microsoft Stack

  • Active Directory

  • DNS

  • RDS

Networking

  • Citrix NetScaler

  • Wireshark

Storage

  • NetApp SAN

  • NAS

  • Backup technologies

Security & Gateway

  • Gateway appliances and software

  • PKI management applications

  • Web applications and protocols

What We're Looking For

  • A proactive self-starter who can work independently and within a team

  • Strong troubleshooting and analytical skills

  • Clear communication skills across technical and non-technical audiences

  • A desire to move from engineering into architectural responsibilities

  • Willingness to travel weekly within the South / Southwest at short notice

If you are interested in discussing this Application Design Engineer role further, please reply back with a copy of your updated CV.