Lead Infrastructure Engineer - Platforms

ZipRecruiter; Portsmouth; On-site; GBP 50,000 - 62,000; Full time

Job summary

A leading company in the Aerospace, Defence and Security sector is seeking an Infrastructure Engineer to ensure the reliability and performance of IT infrastructure. This role involves managing Active Directory, supporting various Microsoft technologies, and participating in transformation projects. The company values flexible work arrangements and is committed to diversity and inclusion.

Benefits

Car allowance

25 days annual leave

Private medical

Life assurance

Pension

Flexible benefits

Qualifications

• Expert Active Directory experience in enterprise-scale deployments.
• Production experience with Microsoft and/or Linux technologies.

Responsibilities

• Manage and maintain Active Directory, including Group Policy, DNS, and DHCP.
• Troubleshoot and resolve 2nd/3rd line infrastructure issues.
• Monitor system performance and ensure high availability.

Skills

Active Directory

Cloud experience

Network security

Tools

Microsoft Azure AD

VMware

SCCM

Job description

Job Description

Do you want to work in an environment where science and technology are at the forefront of safeguarding the UK?

We're looking for a skilled Infrastructure Engineer with a deep understanding of Active Directory and a solid background in supporting and maintaining a broad range of Microsoft technologies. You’ll play a key role in ensuring the reliability, security, and performance of our IT infrastructure while contributing to ongoing transformation projects.

What you will be doing:

• Manage and maintain Active Directory, including Group Policy, DNS, DHCP, and OU structure.
• Support and enhance infrastructure services across Windows Server, Microsoft Exchange, Office 365, and Azure AD.
• Implement and support patching strategies using tools like WSUS or SCCM/MECM.
• Troubleshoot and resolve 2nd/3rd line infrastructure issues.
• Monitor system performance and ensure high availability and security of systems.
• Participate in infrastructure upgrades, migrations, and project work.
• Contribute to documentation, change management, and process improvement initiatives.

What you will bring:

• Expert Active Directory experience in enterprise-scale deployments.
• Cloud experience using Microsoft Azure AD and/or Entra.
• Federation experience.
• Production experience working with Microsoft and/or Linux technologies across secure and highly available enterprise-scale environments.
• Experience in DNS, PKI, Active Directory, DHCP, and distributed file shares.
• Strong understanding of storage and backup technologies in physical and virtual environments.
• Working knowledge and hands-on experience building virtualization capabilities using Broadcom/VMware technologies.
• Experience supporting the design of complex systems and contributing to high-quality design documentation.
• Working knowledge of network security and TCP/IP networking.

If you are interested in this role but not sure if your skills and experience are exactly what we’re looking for, please do apply. We’d love to hear from you!

Employment Details:

• Type: Full-time
• Location: Salisbury or Portsmouth
• Security Clearance Level: To be eligible for Developed Vetting (DV)
• Salary: Up to £62,000
• Benefits: £5,400 car allowance, 25 days annual leave with the option to buy additional days, private medical, life assurance, pension, and flexible benefits.

Although this role is advertised as full-time, we believe that flexible work arrangements can promote work/life balance, increase motivation, reduce stress, and improve performance. We support various flexible working options and encourage candidates to discuss their needs during the application process.

About Us:

Sopra Steria’s Aerospace, Defence and Security business designs, develops, and deploys digital solutions for Central Government clients. Our work makes a real difference in security and operates in a unique environment. We prioritize professional development, mentoring, and fostering a culture where employees feel valued and supported. We are committed to diversity and inclusion, welcoming applications from all backgrounds and identities. We participate in the Vercida scheme to ensure accessibility and equal opportunity.

If you require adjustments to the recruitment process to perform at your best, please inform us in your application. We are committed to providing interviews for candidates with disabilities who meet the role’s minimum criteria.