Senior Infrastructure Engineer - DV

Job Title: Senior Infrastructure Engineer
Location: Hybrid, 60% in Milton Keynes or London, mainly Milton Keynes
Contract Duration: 6 months
Daily Rate: £629.92/day (Umbrella)
IR35 Status: Inside IR35

Security Clearance: DV

Platform Engineer - Azure Infrastructure, Monitoring & Endpoint Security

Role Overview

We are seeking a Platform Engineer with strong Azure, Windows Server, Linux, networking, and endpoint security experience to support enterprise infrastructure platforms across on-premises and cloud environments. The role will focus on deploying and supporting XDR agents, Azure Arc onboarding, Azure Monitor Agent (AMA) installations, infrastructure monitoring, and maintaining secure, reliable platform services across Windows and Linux server estates.

Key Responsibilities

Azure Infrastructure & Hybrid Cloud

• Deploy, configure, and support Microsoft Azure infrastructure services.
• Install and onboard Windows and Linux Servers to Azure Arc.
• Configure and manage Azure Arc-enabled Servers and associated extensions.
• Support Azure resource management, subscriptions, resource groups, and RBAC permissions.
• Assist with hybrid cloud integration and infrastructure modernization initiatives.

Monitoring & Observability

• Install, configure, and troubleshoot Azure Monitor Agent (AMA) on Windows and Linux Servers.
• Configure Azure Monitor, Log Analytics Workspaces, Data Collection Rules (DCRs), dashboards, and alerting solutions.
• Monitor infrastructure performance, availability, capacity, and security events.
• Support operational monitoring and reporting across enterprise environments.

Endpoint Security & XDR Deployment

• Deploy, configure, upgrade, and maintain XDR/EDR agents across Windows and Linux server environments.
• Perform large-scale security agent rollouts using automated deployment methods.
• Troubleshoot agent installation, connectivity, onboarding, and performance issues.
• Ensure endpoint security agents remain compliant and operational across the server estate.
• Support security operations teams with endpoint protection and monitoring requirements.

Windows Server Administration

• Install, configure, administer, and maintain Windows Server environments.
• Manage Active Directory, DNS, DHCP, Group Policy, and certificate services.
• Perform server patching, upgrades, security hardening, and life cycle management.
• Troubleshoot operating system, application, and infrastructure issues.

Linux Server Administration

• Install, configure, administer, and maintain Linux server environments.
• Manage system services, package repositories, storage, user access, and SSH configurations.
• Perform Linux patching, upgrades, and security hardening activities.
• Troubleshoot operating system, application, and networking issues.

Networking

• Configure and troubleshoot TCP/IP Networking in on-premises and Azure environments.
• Support DNS, routing, Firewalls, load balancers, VPNs, and Proxy services.
• Troubleshoot connectivity issues affecting Azure Arc, Azure Monitor Agent, and XDR agent communications.
• Support Azure networking technologies including:
  • Virtual Networks (VNets)
  • Network Security Groups (NSGs)
  • Azure Firewall
  • VPN Gateway
  • ExpressRoute
  • Private Endpoints

Automation & Platform Engineering

• Automate operational tasks using PowerShell and Bash Scripting.
• Support Infrastructure as Code (IaC) initiatives using Terraform, Bicep, or ARM templates.
• Develop deployment and validation scripts for Azure Arc, Azure Monitor Agent, and XDR solutions.
• Maintain technical documentation, standards, and operational procedures.

Security & Compliance

• Implement security best practices and hardening standards across Windows and Linux platforms.
• Support vulnerability remediation, compliance initiatives, and security audits.
• Investigate infrastructure and endpoint security alerts.
• Work closely with Cyber Security, Infrastructure, and Operations teams to maintain secure platforms.

Required Skills & Experience

Technical Skills

• Strong Microsoft Azure administration and support experience.
• Hands-on experience installing and managing Azure Arc-enabled Servers.
• Experience deploying and supporting Azure Monitor Agent (AMA).
• Experience deploying and supporting XDR/EDR security agents.
• Strong Windows Server administration skills.
• Strong Linux server administration skills.
• Knowledge of Active Directory, DNS, DHCP, and Group Policy.
• Strong networking fundamentals including TCP/IP, DNS, routing, VPNs, Firewalls, and proxies.
• Experience with PowerShell and Bash Scripting.
• Experience with Azure Monitor, Log Analytics, and infrastructure monitoring solutions.

Preferred Skills

• Experience with Microsoft Defender XDR, CrowdStrike, SentinelOne, Cortex XDR, or equivalent platforms.
• Experience with Microsoft Intune, SCCM, Ansible, or other deployment tools.
• Experience with Terraform, Bicep, or ARM templates.
• Knowledge of Microsoft Entra ID and Defender for Cloud.
• Familiarity with DevOps practices and CI/CD pipelines.
• Understanding of ITIL service management processes.

Disability Confident

As a member of the disability confident scheme, CLIENT guarantees to interview all candidates who have a disability and who meet all the essential criteria for the vacancy. In cases where we have a high volume of candidates who have a disability who meet all the essential criteria, we will interview the best candidates from within that group.

Armed Forces Covenant

CLIENT is proud to support the Armed Forces Covenant and as such, we guarantee to interview all veterans or spouses/partners of military personnel who meet all the essential criteria for the vacancy. In cases where we have a high volume of ex-military candidates/military spouses or partners, who meet all of the essential criteria, we will interview the best candidates from within that group.

If you qualify for the above, please notify us

We will be in touch to discuss your suitability and arrange your Guaranteed Interview.

Should you require reasonable adjustments at any point during the recruitment process or if there is a more accessible way for us to communicate, please do let me know.

To apply for this role please submit your latest CV or contact Aspect Resources