Senior System Engineer - Windows

Key Responsibilities

• Administer, maintain, troubleshoot, and optimize Windows Server environments across on-premises, VMware, AWS, Azure, and private cloud platforms
• Manage server installations, configurations, upgrades, patching, performance monitoring, capacity planning, and lifecycle management
• Administer Active Directory, Group Policy, DNS, DHCP, IIS, PKI, file services, and hybrid identity integration with Microsoft Entra ID
• Manage Microsoft 365 services, including Exchange Online, Teams, SharePoint Online, OneDrive, user provisioning, licensing, and access controls
• Implement security hardening, vulnerability remediation, access reviews, MFA, Conditional Access, and Microsoft Defender security controls
• Develop PowerShell scripts and automation workflows to streamline system administration, patching, monitoring, reporting, and repetitive operational tasks
• Monitor infrastructure performance, investigate incidents, perform root cause analysis, and support high availability and service continuity
• Administer backup and recovery solutions, conduct restoration tests and disaster recovery drills, and support failover clustering and resilience initiatives
• Maintain infrastructure documentation, operational procedures, technical standards, asset records, and compliance evidence
• Support infrastructure upgrades, cloud migrations, modernization initiatives, audits, and continuous service improvement
• Collaborate with cybersecurity, network, cloud, application, and project teams to deliver secure and reliable infrastructure services

Person Specifications

• Bachelor's degree or diploma in Computer Science, Information Technology, Engineering, or a related field
• 4+ years of hands-on experience in Windows Systems Administration, Infrastructure Engineering, or Enterprise IT Operations
• Strong experience in Windows Server, Active Directory, Group Policy, Microsoft 365, and Microsoft Entra ID administration
• Working knowledge of DNS, DHCP, IIS, PKI, file services, virtualization, networking, storage, backup, and disaster recovery technologies
• Experience supporting hybrid environments across on-premises infrastructure, VMware, AWS, Azure, and Microsoft 365
• Proficiency in PowerShell scripting, automation, infrastructure monitoring, and troubleshooting
• Good understanding of Windows security, vulnerability management, patching, access control, and IT service management practices
• Experience in incident, problem, change, backup, and recovery management; exposure to regulated environments is an advantage
• Relevant Microsoft, cloud, virtualization, or IT service management certifications are desirable
• Strong analytical, documentation, communication, and stakeholder management skills
• Ability to work independently, manage competing priorities, and support business-critical systems in a 24/7 enterprise environment

Vendor submissions - 12 months