AWS System Engineer
Core
Administer and optimise AWS, Microsoft 365, Windows, and Linux environments to ensure security, resilience, and operational efficiency for critical national infrastructure.
Role type
Senior AWS Systems Engineer (Infrastructure & Cloud Operations)
Builds
Secure, patched, and highly available cloud and on-premise infrastructure platforms
Domain
Telecommunications, utilities, transport, defence, and social infrastructure
Required skills
AWS administration (EC2, VPC, IAM, S3), Windows Server & Linux management, Microsoft 365 (Entra ID, Exchange, Teams, Intune), enterprise networking (DNS, VPN, firewalls), automation scripting (PowerShell, Python), vulnerability remediation, patch management, backup & recovery
Preferred skills
AWS Solutions Architect Associate or SysOps Administrator certification, Azure Administrator (AZ-104) or Security (AZ-500) certification, Microsoft 365 certifications (MS-102, MD-102), Cisco CCNA, ITIL Foundation, CompTIA Security+, Microsoft SC-200
Technologies
AWS (EC2, VPC, IAM, S3), Microsoft 365 (Entra ID, Exchange Online, Teams, SharePoint, Intune), Windows Server, Linux, PowerShell, Python, Active Directory, DNS, DHCP, SSL/TLS
Responsibilities
Administer and optimise AWS environments and cloud networking; Manage Windows Server, Linux, Active Directory, and Group Policy; Support Microsoft 365 services including Entra ID and Intune; Drive security improvement initiatives, vulnerability remediation, and patch compliance; Develop automation solutions using PowerShell and Python; Maintain monitoring, alerting, backup, and recovery processes; Support enterprise networking technologies and manage vendor relationships
Seniority
Senior, hands-on IC
