Infrastructure System Engineer

Salary: £41,000 - 69,500 per year

Requirements:

• Experience with installations, builds, configuration, administration, and support of Windows Active Directory large-scale infrastructures
• Knowledge of Hyper-V and AWS
• Experience managing, maintaining, and securing on-premises Active Directory and Azure Active Directory (Entra ID)
• Experience troubleshooting complex Group Policy Object (GPO) issues, DNS, DHCP, and AD replication errors
• Experience with identity management, user provisioning, and multi-factor authentication (MFA) rollouts
• Experience performing Active Directory migrations, upgrades, and security hardening
• Experience building, configuring, and maintaining Microsoft Hyper-V clusters and virtual machine environments
• Experience monitoring resource utilization, storage performance, and system health
• Experience troubleshooting hypervisor failures, virtual machine performance bottlenecks, and network connectivity issues
• Experience implementing disaster recovery, backup solutions, and business continuity plans for virtual workloads
• Experience designing, deploying, and managing scalable cloud infrastructure on Amazon Web Services (AWS)
• Experience managing AWS core services including EC2, S3, VPC, IAM, Route 53, and RDS
• Experience monitoring cloud security, compliance, and cost optimization using AWS native tools
• Experience troubleshooting AWS networking, security groups, and hybrid cloud connectivity (VPN/Direct Connect)

Responsibilities:

• Manage, maintain, and secure on-premises Active Directory and Azure Active Directory (Entra ID)
• Troubleshoot complex Group Policy Object (GPO) issues, DNS, DHCP, and AD replication errors
• Execute identity management, user provisioning, and multi-factor authentication (MFA) rollouts
• Perform Active Directory migrations, upgrades, and security hardening
• Build, configure, and maintain Microsoft Hyper-V clusters and virtual machine environments
• Monitor resource utilization, storage performance, and system health
• Troubleshoot hypervisor failures, virtual machine performance bottlenecks, and network connectivity issues
• Implement disaster recovery, backup solutions, and business continuity plans for virtual workloads
• Design, deploy, and manage scalable cloud infrastructure on Amazon Web Services (AWS)
• Manage AWS core services including EC2, S3, VPC, IAM, Route 53, and RDS
• Monitor cloud security, compliance, and cost optimization using AWS native tools
• Troubleshoot AWS networking, security groups, and hybrid cloud connectivity (VPN/Direct Connect)

Technologies:

• AWS
• Active Directory
• Azure
• Cloud
• EC2
• Hyper-V
• IAM
• Support
• Network
• Security
• System Engineer
• VPN
• Web
• Windows
• DevOps

More:

We are recruiting an Infrastructure System Engineer for a 6-month contract at £400-450 outside IR35, with an ASAP start and 2 days a week onsite. The role focuses on large-scale Windows Active Directory infrastructure, Hyper-V virtualization, and AWS cloud infrastructure. This is a contract opportunity with a collaborative working setup and the chance to support a broad infrastructure environment.

last updated 36 week of 2026