Senior System Administrator

Overview

Senior System Administrator

Server Administration

• Install, configure, maintain, and troubleshoot Windows Server environments.
• Manage physical and virtual servers, including performance monitoring and capacity planning.
• Perform system upgrades, patch management, and operating system maintenance.
• Administer server roles and services such as DNS, DHCP, File Services, Print Services, and IIS.
• Ensure server availability, redundancy, and disaster recovery readiness.

Active Directory & Identity Management

• Administer and maintain

Microsoft Active Directory

• infrastructure.
• Manage user accounts, security groups, Organizational Units (OUs), and Group Policies (GPOs).
• Implement and maintain identity and access management controls.
• Troubleshoot authentication, authorization, and domain-related issues.
• Manage Active Directory replication, domain controllers, and trust relationships.

Virtualization & Storage

• Manage virtualization platforms such as VMware vSphere, Hyper-V, or Nutanix.
• Administer enterprise storage solutions, SAN/NAS environments, and backup systems.
• Monitor storage utilization and optimize infrastructure performance.

Security & Compliance

• Implement and maintain security best practices for servers and infrastructure.
• Monitor security alerts and vulnerabilities and coordinate remediation activities.
• Manage endpoint protection, system hardening, and access control policies.
• Support compliance with organizational security standards and regulatory requirements.

Backup & Disaster Recovery

• Manage backup solutions and ensure successful backup completion.
• Conduct periodic backup restoration testing.
• Develop and maintain disaster recovery procedures and documentation.

Monitoring & Support

• Monitor server health, system performance, and infrastructure availability.
• Investigate and resolve complex infrastructure incidents and service outages.
• Provide Level 2 and Level 3 technical support for infrastructure-related issues.
• Coordinate with vendors and third-party support providers when required.

Documentation & Reporting

• Maintain accurate infrastructure documentation, network diagrams, and operational procedures.
• Prepare reports on system performance, capacity utilization, and infrastructure improvements.
• Develop and update standard operating procedures