Senior Systems Administrator

Job Title:            Senior Systems Administrator

Location:           Ayer, MA 01432 (Onsite)

Hire Type:          Permanent / Full Time

Schedule: This is a full time position, Mon-Fri. Some planned after-hours work may be required for critical outages, maintenance, system changes, and project cutovers.

Other: Travel as needed between Ayer, Devens, Brockton, and other Massachusetts locations.

Responsibilities:

• Manage and support Windows servers, virtualization platforms, and network infrastructure
• Administer Active Directory/Entra ID, Intune, Microsoft Teams, and SharePoint
• Provide Tier 3 technical support and troubleshoot complex infrastructure and application issues
• Manage enterprise backup, disaster recovery, and data protection systems
• Maintain patching, firmware, software updates, and endpoint compliance
• Support network upgrades, migrations, cybersecurity initiatives, and infrastructure modernization projects
• Manage user access, privileged access controls, security policies, and audit documentation
• Support business applications and coordinate troubleshooting and escalations with vendors
• Coordinate managed-service providers and technology vendors
• Administer physical security systems, including cameras and access control
• Maintain technical documentation and support compliance and audit-readiness activities
• Mentor and provide technical guidance to other Systems Administrators
• Support and train employees on company IT systems.