IT Systems Administrator

crestoperations; Pineville (LA); Hybrid; USD 65,000 - 90,000; Full time

Job summary

Crest Operations seeks an IT Systems Administrator to own the reliability, security, and continuous improvement of a hybrid IT environment. You will administer core infrastructure, solve complex issues, automate repetitive work, and maintain documentation and controls for stable operations.

You will manage Windows Server, AD, Microsoft 365, Entra, VMware and Azure-based infra, plus Intune and Workspace ONE.

Qualifications

• 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.
• Knowledge of identity security, access controls, backup, recovery, and monitoring.
• PowerShell scripting or automation experience.
• Ability to diagnose complex issues independently and make sound technical decisions.
• Strong documentation practices and attention to configuration accuracy.

Responsibilities

• Own the reliability, security, and continuous improvement of Crest Operations' hybrid IT environment.
• Administer core infrastructure, solve complex technical problems, automate repetitive work, and maintain documentation and controls for stable operations.
• Manage tickets, changes, and service commitments in alignment with ITIL practices.
• Configure endpoints, compliance policies, applications, and software deployments using Intune and Workspace ONE.
• Perform 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.
• Identify security, reliability, licensing, and capacity risks before they affect the business.

Skills

Windows Server

Active Directory

Group Policy

Microsoft 365

Entra

VMware

Azure

Intune

Workspace ONE

PowerShell

Identity security

Backups

Monitoring

Documentation

Education

ITIL v4 Foundation

Microsoft / Azure / VMware certifications

Security+ / Network+ certifications

Okta certifications

Job description

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.

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.