Thorn SDS Ltd
Senior Server Engineer

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Overview
Thorn SDS is a UK specialist Managed Service Provider. We empower technology professionals and organisations across the Space, Defence, and Security sectors — and now, we’re growing our team with a Senior Server Engineer who’s ready to make an impact.
This is a new opportunity for an experienced Server Engineer to join a team of dedicated IT professionals delivering a new and exciting IT platform into our customer’s environment. Working on site as part of a delivery team, you’ll take responsibility for the delivery, integration and support of a major IT system, working across VMware, Dell infrastructure and Microsoft technologies.
Security Clearance
Successful applicants will be required to obtain a high level of security clearance prior to appointment. (See: Gov.UK – United Kingdom Security Vetting)
What You’ll Be Doing
You’ll work as part of a medium-sized delivery team, taking ownership of technical tasks and helping to ensure solutions are delivered to the required quality, budget and timescales. Responsibilities include:
- Working on and leading tasks to ensure the delivered solution follows defined design processes, governance procedures and through-life processes
- Delivering business-as-usual, integration, support and development tasks across the current and new platforms
- Deploying, integrating and supporting VMware environments, including VCF, vSphere, automation, vSAN and NSX
- Working with Dell infrastructure, including PowerFlex, PowerScale and PowerProtect hardware
- Supporting Microsoft Server technologies alongside client and collaboration tooling such as SharePoint and Exchange
- Troubleshooting complex systems and resolving implementation and integration issues across multiple platforms and technologies
- Supporting secured enterprise infrastructure and applying appropriate security requirements throughout delivery
- Producing clear, comprehensive technical documentation to support delivery, governance and through-life support
- Keeping abreast of industry trends and advancements, while promoting technical and engineering excellence and building strong relationships with peers
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Graduate Consultant — 2026 Scheme
Why you're a good match
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Why you're a good match
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Experience fit
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What You’ll Bring
- Demonstrable in-depth experience as a Server Engineer within complex enterprise environments
- Strong technical capability across:
- VMware, including VCF, vSphere, automation, vSAN and NSX
- Hyper-V
- Dell hardware, including PowerFlex, PowerScale and PowerProtect
- Microsoft Server experience
- Microsoft client and collaboration tooling, including SharePoint and Exchange
- Systems integration, with an appreciation of networking requirements for hybrid cloud infrastructure
- A sound technical understanding of security requirements and experience deploying and supporting secured enterprise infrastructure
- Excellent troubleshooting skills with experience diagnosing complex, multi-platform systems
- Highly organised, with exceptional time and personal management skills
- Strong written communication skills and the ability to produce high-quality technical documentation
- Comfortable working within a medium-sized team, building relationships with peers and adapting to evolving technologies and industry trends


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Knowledge, Skills and Experience - Desired
- Knowledge and experience of automation and software-defined systems
- Knowledge of JSP 453, JSP 604 and JSP 440, together with associated guidance and policy
- Experience of working within a demanding customer environment
What’s In It For You
- Competitive salary
- 25 days Annual Leave (plus Bank Holidays)
- Employer Pension Contributions
- Group Life Insurance
- Dental & Health Cashback Plans
- Wellbeing Services (includes GP, Physio and Savings Benefits)
- Thorn Wellbeing Support Contribution
- Supported Training & Personal Development Opportunities
Ready to Take the Lead?
If you’re looking to push your career forward in a secure, technically demanding environment, we’d love to hear from you. Join Thorn SDS and play a key role in delivering, integrating and supporting resilient enterprise server infrastructure where it matters most.
All applicants must have the Right to Work in the UK.
Apply now and shape the future of secure server infrastructure.
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