IT Systems Administrator

IT Systems Administrator

The Role

Own the reliability, security, and continuous improvement of Crest Operations’ hybrid IT environment. You will administer core infrastructure, solve complex technical problems, automate repetitive work, and maintain the documentation and controls required for stable operations.

This role is suited to a systems expert who works independently, moves quickly, and expects technical decisions to be supported by logic, evidence, and defined standards.

What You’ll Own

Administer Windows Server, Active Directory, Group Policy, Microsoft 365, and Microsoft Entra

Maintain hybrid infrastructure across VMware, Azure IaaS, and on-premises environments

Manage identity, access, conditional-access policies, permissions, and Okta integrations

Configure endpoints, compliance policies, applications, and software deployments using Intune and Workspace ONE

Execute upgrades, patching, migrations, backups, recovery testing, and system retirements

Monitor system health, investigate alerts, and resolve root causes

Use PowerShell, APIs, and automation to improve reliability and reduce manual work

Maintain accurate system configurations, network records, procedures, and compliance documentation

Support infrastructure modernization, lifecycle planning, and platform optimization

Manage tickets, changes, and service commitments in accordance with ITIL practices

Identify security, reliability, licensing, and capacity risks before they affect the business

What Success Looks Like

Systems remain stable, secure, current, and recoverable

Technical issues are resolved accurately and at the root-cause level

Changes are tested, documented, and implemented with minimal disruption

Repetitive processes are standardized or automated

Leadership receives clear, evidence-based recommendations on risk, cost, and system improvements

Required Experience

3–7 years of systems-administration experience in a Windows enterprise environment

Strong knowledge of Windows Server, Active Directory, Group Policy, Microsoft 365, and Entra

Experience with VMware or Azure-based virtual infrastructure

Experience managing endpoints through Intune or Workspace ONE

Working knowledge of identity security, access controls, backup, recovery, and monitoring

PowerShell scripting or comparable automation experience

Ability to diagnose complex issues and make sound technical decisions independently

Strong documentation practices and attention to configuration accuracy

Preferred Experience

Okta administration and SaaS provisioning

API-based integrations and SaaS connectors

Exchange Online, SharePoint Online, Teams, Power BI, and Power Automate

Veeam, PRTG, SolarWinds, ServiceNow, or Zendesk

Infrastructure migrations, modernization, or cloud-transition projects

ITIL v4 Foundation certification

Microsoft, Azure, VMware, Okta, Network+, or Security+ certifications

Technical Environment

Windows Server 2012–2022 | Active Directory | Group Policy | Microsoft 365 | Entra | Azure IaaS | VMware vSphere | Intune | Workspace ONE | Okta | PowerShell | Veeam | PRTG | SolarWinds

Why Join Crest Operations?

You will have meaningful ownership of a diverse technical environment and the opportunity to improve how it operates. The work is hands-on, technically demanding, and visible. Strong performance can lead to senior systems administration, cloud engineering, infrastructure architecture, or IT operations leadership.