IT Systems Administrator I/II — On‑Prem & Cloud Hybrid

GeoStabilization International®; Westminster (CO); On-site; USD 71,000 - 88,000; Full time

Job summary

GeoStabilization International (GSI) is seeking a Systems Administrator I/II to own reliability, performance, and security of on‑premises and cloud infrastructure at our Westminster, CO headquarters on a hybrid schedule. This hands‑on role demands excellence, resilience, and a proactive mindset to scale systems and automate routine tasks.

The candidate will manage Windows servers, AD, DNS, DHCP, and cloud environments (Azure), while supporting backups, patching, network gear, and security

Qualifications

• Associate's or bachelor's degree in computer science, information technology, or related field, or equivalent hands-on experience.
• Hands-on experience administering Windows Servers and cloud environments.
• Working knowledge of Active Directory, DNS, DHCP, and Group Policy.
• Working experience with Azure, Entra, and Microsoft Exchange.
• Knowledge of MDM for device management; Microsoft Intune a plus.
• Experience with virtualization platforms (VMware, Hyper‑V, or equivalent).
• Familiarity with networking fundamentals (TCP/IP, VLANs, routing, firewalls).
• Understanding of ZTNA for local infrastructure.
• Understanding of backup/disaster recovery tools and practices.
• Strong troubleshooting skills and ability to work independently under time pressure.
• Clear written and verbal communication skills for documentation and end-user support.
• Willingness to work occasional off-hours for maintenance windows or emergencies.

Responsibilities

• Install, configure, and maintain Windows servers, virtualization platforms, and cloud infrastructure (e.g., Azure).
• Monitor system performance, capacity, and availability, and proactively resolve issues before they impact users.
• Administer Active Directory, Group Policy, DNS, DHCP, and identity/access management systems.
• Manage system backups; perform regular updates and file/server recovery testing.
• Apply security patches and best‑practice configurations to servers and appliances.
• Support network infrastructure including switches, firewalls, VPNs, and wireless access points.
• Maintain accurate documentation of systems, configurations, and standard operating procedures.
• Provide Tier 2/3 escalation support for end‑user hardware, software, and connectivity issues.
• Ensure compliance with organizational security policies and relevant regulatory requirements.
• Identify and drive opportunities to automate routine administration, monitoring, and support work, including through AI‑assisted tools.
• Bring a team‑based, solutions‑first approach to cross‑functional problem solving, and exercise strategic judgment under pressure rather than simply escalating.

Skills

Windows Servers

Azure

Active Directory

DNS

DHCP

Group Policy

VMware

Hyper-V

Networking fundamentals

Intune

PowerShell

ZTNA

Security patches

Education

Associate's or Bachelor's degree in CS/IT or related field

Tools

Azure

Intune

Exchange

MDM

Job description

GeoStabilization International (GSI) is seeking a Systems Administrator I/II to own reliability, performance, and security of on‑premises and cloud infrastructure at our Westminster, CO headquarters on a hybrid schedule. This hands‑on role demands excellence, resilience, and a proactive mindset to scale systems and automate routine tasks.

The candidate will manage Windows servers, AD, DNS, DHCP, and cloud environments (Azure), while supporting backups, patching, network gear, and security