Senior Server Engineer

At Thorn SDS, we deliver specialist managed services to organisations operating across the Space, Defence and Security sectors. We're looking for an experienced Senior Server Engineer to join our team and help design, build and support secure, high-performance server infrastructure in a highly secure environment.

This is a hands-on technical role operating at SFIA Level 5, with opportunities to lead infrastructure projects, mentor engineers and work with enterprise technologies that make a real difference.

What You'll Do

• Design, deploy and support Windows and Linux server platforms

• Manage VMware, Hyper-V and virtualised infrastructure

• Support enterprise storage, backup and disaster recovery solutions

• Automate server provisioning, patching and configuration

• Implement server hardening and security best practice

• Monitor, troubleshoot and optimise mission-critical environments

• Work alongside cloud and security teams on hybrid infrastructure

• Mentor junior engineers and contribute to continuous improvement

What You'll Bring

• Strong experience supporting enterprise server infrastructure

• Expertise in Windows Server, Linux and virtualisation

• Knowledge of storage, backup and automation tools

• Strong troubleshooting and problem-solving skills

• Experience with security hardening and patch management

• Defence experience and relevant certifications

Why Thorn SDS?

• 25 days annual leave plus Bank Holidays

• Pension and Life Insurance

• Health, Dental and Wellbeing plans

• Cycle to Work Scheme

• Ongoing training and career development

• The opportunity to work on projects that really matter

Applicants must have the Right to Work in the UK and hold, or be eligible to obtain, a high level of UK National Security Clearance. Due to the nature of our work, nationality and previous nationalities may affect eligibility for certain roles.