Senior System Administrator

Job Summary : seeking an experienced Senior Systems Administrator to manage enterprise infrastructure, provide advanced Tier III technical support, and ensure system security, reliability, and performance.

Key Responsibilities

Systems Administration & Infrastructure Support (50%)

• Administer Active Directory and Group Policy (GPO).
• Manage Microsoft 365 and Exchange Hybrid environments.
• Support system monitoring, backup, recovery, and security.
• Provide technical guidance and mentor team members.

Technical Support & Incident Resolution (25%)

• Troubleshoot and resolve complex Tier III incidents.
• Perform software installation, configuration, and support.
• Maintain ITSM documentation and technical records.
• Provide desk-side support and coordinate vendor escalations.

Documentation, Compliance & Projects (15%)

• Develop and maintain Standard Operating Procedures (SOPs).
• Maintain knowledge base articles and technical documentation.
• Support security compliance, reporting, and process improvements.
• Assist with infrastructure projects and technical implementations.

Customer Service & Service Management (10%)

• Communicate effectively with customers and stakeholders.
• Track tickets and manage Service Level Agreement (SLA) requirements.
• Provide user training and maintain support documentation.

Education

Bachelor’s degree in Information Technology, Computer Science, or a related field, or an equivalent combination of education and experience.

Ideal Candidate

• Strong hands-on experience with Active Directory, GPO, Microsoft 365, and Exchange Hybrid administration.
• Experience with enterprise monitoring, backup and recovery, and Tier III support.
• Excellent troubleshooting, documentation, communication, and customer service skills.