Senior Systems Engineer

Spectrum IT Recruitment; England; On-site; GBP 60,000 - 90,000; Full time

Job summary

Spectrum IT Recruitment is seeking a Systems Engineer or Senior Systems Engineer with strong Microsoft infrastructure and cloud experience to join a technically diverse environment. This hands-on senior role combines engineering with project delivery, solution design and customer engagement, taking ownership of complex server and cloud infrastructure.

You will lead the technical delivery of infrastructure projects, design, implement and maintain Microsoft server and cloud solutions, and work

Qualifications

• 5+ years in a senior infrastructure/systems engineer role.
• Strong Microsoft server and cloud experience.
• Experience designing and implementing complex enterprise infrastructure.
• Ability to produce technical designs and documentation.
• Experience with stakeholder engagement.

Responsibilities

• Lead the technical delivery of complex infrastructure projects.
• Design, implement and maintain Microsoft server and cloud solutions.
• Work directly with internal and external stakeholders to understand requirements and scope technical solutions.
• Produce high- and low-level technical designs, project documentation and implementation plans.
• Provide technical input into estimates, Statements of Work and change requests.
• Configure and deploy infrastructure in line with agreed designs.
• Provide advanced troubleshooting and technical problem resolution.
• Support live environments, including planned maintenance and incident resolution.
• Manage service transition, documentation and knowledge transfer into support teams.
• Identify opportunities to improve infrastructure, processes and operational procedures.
• Take ownership of technical tasks from initial scoping through to successful delivery.

Skills

Senior infrastructure experience

Project delivery

Customer engagement

Advanced troubleshooting

Stakeholder communication

Tools

Active Directory (AD DS)

AD CS / PKI

Windows Server

Hyper-V

Job description

Are you a Systems Engineer or Senior Systems Engineer with strong Microsoft infrastructure and cloud experience?

We're looking for an experienced engineer to join a technically diverse environment, taking a leading role in the design, implementation and support of complex server and cloud infrastructure.

This is a hands‑on senior position where you'll combine technical engineering with project delivery, solution design and customer engagement.

What you'll be doing

• Lead the technical delivery of complex infrastructure projects
• Design, implement and maintain Microsoft server and cloud solutions
• Work directly with internal and external stakeholders to understand requirements and scope technical solutions
• Produce high- and low-level technical designs, project documentation and implementation plans
• Provide technical input into estimates, Statements of Work and change requests
• Configure and deploy infrastructure in line with agreed designs
• Provide advanced troubleshooting and technical problem resolution
• Support live environments, including planned maintenance and incident resolution
• Manage service transition, documentation and knowledge transfer into support teams
• Identify opportunities to improve infrastructure, processes and operational procedures
• Take ownership of technical tasks from initial scoping through to successful delivery

Technical expertise we're looking for

You’ll ideally have 5+ years' experience in a senior infrastructure/systems engineering role, working with Microsoft technologies within complex enterprise environments.

Microsoft Server & Infrastructure

• Active Directory Domain Services (AD DS)
• Active Directory Certificate Services (AD CS) / PKI
• Windows Server 2016, 2019, 2022 and/or 2025
• Hyper‑V, including clustered and standalone environments