System Administrator
Role details
Job location
Tech stack
Job description
We are seeking an experienced Windows Systems & Infrastructure Administrator to lead and support our on-premises and hybrid infrastructure environments. This role focuses on Windows Server administration, virtualization, enterprise storage, data protection, and cyber resilience. You will be responsible for the stability, security, and lifecycle management of core infrastructure platforms supporting business-critical applications. This critical position plays a key role in operational reliability, system modernization, and cybersecurity resilience across data center and cloud-integrated environments. What You'll Do Core Systems & Infrastructure Administration
- Administer and support Microsoft Windows Server environments (2019, 2022, and 2025)
- Perform patching, upgrades, firmware updates, and lifecycle management to ensure system stability and security
- Deploy and manage new Microsoft server builds, upgrades, and role migrations
- Maintain Active Directory, DNS, DHCP, and domain controller infrastructure
- Provide front-line technical support and serve as an escalation point for infrastructure issues
Virtualization & Compute Platforms
- Administer and support VMware vSphere virtual infrastructure
- Perform monthly patching, upgrades, and lifecycle planning for VMware environments
- Support dHCI platforms, including patching and integrated infrastructure management
Enterprise Storage & Data Center Operations
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Administer SAN environments
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Storage provisioning
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Performance monitoring and tuning
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Capacity and growth planning
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Support data center operations including:
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On-site and remote "hands & eyes"
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Rack-and-stack of server and network hardware
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Tech refresh and equipment decommissioning
Data Protection, Backup & Cyber Resilience
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Administer Data Protection platforms
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Support and manage Zerto Data Replication
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Training and platform upgrades (including Zerto 10)
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Participate in data protection documentation, recovery planning, and resilience testing
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Manage email and endpoint protection platforms
Server Applications & Platform Support
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Support infrastructure and backend services for enterprise applications including:
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Deltek Vantagepoint
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Microsoft SQL Server
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Newforma Project Center
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Core IT management servers
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Manage and support:
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Microsoft Intune
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Microsoft Azure / Entra ID
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Network monitoring platforms
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IT management tools (Quest KACE, ManageEngine)
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Zendesk help desk
Networking & Operational Collaboration
- Support infrastructure initiatives involving networking platforms in collaboration with network engineers
- Assist with VLAN segmentation, firewall integrations, and DNS/DHCP cleanup initiatives
- Participate in disaster recovery testing, infrastructure audits, and security initiatives
- Maintain accurate technical documentation for systems, configurations, and change management
Frontline End User Support
- Provide occasional end user support with end point hardware and applications
- End user applications including Autodesk Revit, Adobe Creative Cloud, Sketchup, Revizto, Autodesk 3DS Max, and Chaos Group V-Ray render farm
- Meeting Room and Collaboration space technology support
Requirements
- 5-10 years of experience in Windows System Administration or Infrastructure Engineering
- Strong knowledge of Windows Server (2022 and 2025)
- Experience with Active Directory, Group Policy, DNS, and DHCP
- Experience with Microsoft Exchange Server (on-premises, Online, and hybrid)
Benefits & conditions
Type: Full-Time benefits package including healthcare options, dental, vision, life & disability insurance, 401k, Paid Time Off, etc. Location: Denver, Colorado - Hybrid / with four office days per week after training period is completed (subject to supervisor approval) Salary: $85,000 - $95,000 annually (Depending upon experience, knowledge, skills, certifications and education)