Job Description:

Job Summary
The Lead - System Administration will be responsible for the overall operation, availability and improvement of the organization's internal server and systems infrastructure. The role will lead day-to-day infrastructure operations, coordinate the system administration team and ensure that enterprise platforms are secure, reliable, monitored, backed up and maintained.
Key Responsibilities
• Lead day-to-day internal IT infrastructure operations across servers, virtualization, storage, backup, cloud and related platforms.
• Oversee administration of Windows and Linux servers, Active Directory, DNS, DHCP, Group Policy and identity-related services.
• Oversee Microsoft 365, Exchange Online, Entra ID, Azure and other internal cloud services as applicable.
• Manage VMware/Hyper-V or equivalent virtualization environments and ensure appropriate capacity and availability.
• Ensure timely patching, vulnerability remediation, security hardening, monitoring and performance management.
• Oversee backup, restore, disaster recovery and business continuity activities, including periodic recovery validation.
• Drive resolution of critical infrastructure incidents and ensure Root Cause Analysis and preventive actions for recurring issues.
• Plan and coordinate server upgrades, migrations, infrastructure refresh and lifecycle management activities.
• Coordinate with network, security, application,



database and business teams for infrastructure requirements and issue resolution.
• Maintain infrastructure inventory, licensing records, SOPs, diagrams and operational documentation.
• Ensure changes are planned and implemented through defined change management processes.
• Coordinate with OEMs and support partners for escalations, renewals and technical support.
• Identify opportunities for standardization and automation using Power Shell/scripting or suitable tools.
• Guide and mentor system administrators and support engineers and review operational work where required.
• Ensure infrastructure services meet agreed SLA, availability and security requirements.
Required Skills
• Windows and Linux administration
• Active Directory, DNS, DHCP and Group Policy
• VMware/Hyper-V virtualization
• Microsoft 365, Entra ID and Azure
• Backup and disaster recovery
• Server security, hardening and vulnerability remediation
• Monitoring, performance and capacity management
• Power Shell/scripting
• Incident, problem and change management
• Team coordination and technical leadership
Qualification & Experience
• Bachelor's degree in IT, Computer Science, Engineering or equivalent.
• 8-12 years of relevant experience in enterprise IT infrastructure operations.
• Microsoft, VMware, Red Hat or Azure certifications preferred.
• ITIL certification preferred.

📌 Lead - IT Infra (India)
🏢 Trigyn Technologies
📍 India