Location: Hybrid – 60% onsite, primarily Milton Keynes (some London)
IR35: Inside IR35
Security Clearance: Current DV Clearance – Essential
Role Overview
We are seeking an experienced Senior Platform Engineer to support secure, enterprise‑scale infrastructure across Microsoft Azure and on‑premises environments.
The role focuses on Azure infrastructure, Azure Arc, Azure Monitor/AMA, Windows and Linux administration, networking, endpoint security/XDR and automation. You will work closely with Infrastructure, Cyber Security and Operations teams to maintain resilient, secure and highly available platforms.
Key Skills & Experience
- Azure & Hybrid Infrastructure: Strong Azure administration with hands‑on experience deploying and managing Azure Arc‑enabled servers, subscriptions, resource groups, RBAC and hybrid infrastructure.
- Monitoring & Observability: Experience with Azure Monitor Agent (AMA), Log Analytics, Data Collection Rules (DCRs), dashboards, alerting and infrastructure monitoring across Windows and Linux.
- Endpoint Security/XDR: Hands‑on deployment and support of XDR/EDR agents across enterprise Windows and Linux estates, including troubleshooting onboarding, connectivity and agent health.
- Windows & Linux: Strong enterprise server administration covering Windows Server, Active Directory, DNS, DHCP, Group Policy, certificates, alongside Linux services, packages, SSH, storage, patching and hardening.
- Networking: Strong TCP/IP and enterprise networking knowledge including DNS, routing, firewalls, proxies, VPNs and load balancers, plus Azure VNets, NSGs, Azure Firewall, VPN Gateway, ExpressRoute and Private Endpoints.
- Automation & IaC: Experience with PowerShell, Bash and Infrastructure as Code, ideally using Terraform, Bicep or ARM templates, with a focus on automating deployment, validation and operational tasks.
Additional Experience
Experience with Microsoft Defender XDR, CrowdStrike, SentinelOne, Cortex XDR, Intune, SCCM, Ansible, Terraform, Bicep, Entra ID, Defender for Cloud, CI/CD, DevOps or ITIL would be advantageous.
- Current DV Security Clearance
- 5+ years' experience in Platform, Infrastructure, Cloud Engineering or Systems Administration
- Strong hands‑on Azure and hybrid infrastructure experience
- Enterprise Windows and Linux administration
- XDR/EDR deployment and support experience
- Strong networking and troubleshooting skills
- PowerShell and Bash scripting experience
- Excellent communication and stakeholder management skills
- Strong focus on security, reliability and operational excellence
Please note: This is a hands‑on engineering role within a complex, secure enterprise environment, with DV clearance essential.
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