Senior Systems Administrator

Description

Job Title: Senior Systems Administrator

Department: Information Services
Reports To: Director of Information Services
FLSA Status: Exempt
TS Range: 11/12 DOQ ($83,084.03)
Opening Date: January 30th, 2026
Closing Date: February 13th, 2026

Provide senior-level administration, maintenance, troubleshooting, and on-call support for the organization’s infrastructure systems and related applications. This position is responsible for the design, security, reliability, and performance of servers, virtualization, identity, and core infrastructure services. The Senior Systems Administrator provides technical leadership, mentors junior systems administrators, and works closely with the Director of Information Services to ensure systems are secure, resilient, and well-documented.

• Administer and support Nutanix AHV infrastructure, including virtual machines, storage, replication, and performance optimization
• Install new software releases, system upgrades, evaluate and apply patches, and resolve hardware and software issues
• Maintain and support Active Directory, including users, groups, GPOs, DNS, and authentication services
• Administer Microsoft 365 services, including Entra  (Azure AD), Exchange Online, SharePoint, Teams, and related security controls.
• Monitor system performance, capacity, and availability across all infrastructure platforms
• Perform system backups, recovery operations, and participate in disaster recovery testing
• Support and troubleshoot common network protocols and services including TCP/IP, DNS, DHCP, LDAP, HTTP/HTTPS, VPNs, and secure remote access.
• Assist with endpoint and network security monitoring and respond to security alerts and incidents
• Support phishing investigations, malware response, system isolation, and incident containment activities
• Maintain accurate system documentation, including server roles, configurations, dependencies, and procedures
• Follow change management processes for system modifications and maintenance activities
• Analyze infrastructure and make recommendations to IT management regarding improvements, risks, and future needs.
• Identify opportunities for automation and operational efficiencies.
• Serve as a technical escalation point for Help Desk and junior systems administrators.
• Mentor and provide technical guidance to junior systems administrators, promoting best practices, documentation, and skill development.
• Participate in audits, assessments, and security reviews as assigned.
• Provide professional customer service and collaborate effectively with internal and external team members.
• Perform other duties as assigned.

This position does not have formal supervisory responsibilities but provides technical leadership and mentorship to junior systems administrators and helpdesk.

To perform this job successfully, an individual must be able to perform each essential duty satisfactorily. The requirements listed below are representative of the knowledge, skill, and/or ability required. Reasonable accommodation may be made to enable individuals with disabilities to perform the essential functions.

Master’s degree and a minimum of three years of experience in the information technology field. Bachelor’s Degree and a minimum of five years’ experience in information technology field OR Associate of Arts and a minimum of seven years’ experience in information technology field OR High School Diploma/GED and a minimum of nine years’ experience in information technology field.

Ability to read, analyze, and interpret general business periodicals, professional journals, technical procedures, or governmental regulations. Ability to write reports, business correspondence, and procedure manuals. Ability to effectively present information and respond to questions from groups of managers, clients, customers, and the public.

Ability to calculate figures and amounts such as discounts, interest, commissions, proportions, percentages, area, circumference, and volume. Ability to apply concepts of basic algebra and geometry.

Ability to…