Senior Systems Administrator

Agate Software

. Own and improve Windows Server, Active Directory, Group Policy, DNS, DHCP, Microsoft 365, Entra ID, and related infrastructure .

Posted 10/15/2026full-timeOkemos • Michigan • United StatesSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in Windows Server, Active Directory, Microsoft 365, and Azure cloud administration, with a strong focus on automation using PowerShell and a commitment to security and infrastructure resilience.

Highest-signal resume keywords

Windows Server AdministrationMicrosoft Azure AdministrationPowerShell AutomationTroubleshooting SkillsInfrastructure Security

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Windows ServerActive DirectoryGroup PolicyDNSDHCPMicrosoft 365AzureVirtualizationBackup and RecoveryMonitoring

Soft Skills

Problem-SolvingIndependent WorkContinuous Improvement

Tools & Technologies

PowerShellAzure GovernmentAzure Commercial

Certifications & Qualifications

DegreeCertifications

Industry Keywords

Infrastructure ResilienceSecurityVulnerability RemediationCloud ArchitectureNetworking

Tech Stack

Tools & technologies

AzureCloudDNS

About the role

Key responsibilities & impact

Own and improve Windows Server, Active Directory, Group Policy, DNS, DHCP, Microsoft 365, Entra ID, and related infrastructure
Administer and expand the Azure environment across compute, networking, storage, monitoring, backup, and identity
Modernize aging infrastructure and help shape the evolving cloud architecture
Automate repetitive administration and reporting using PowerShell and other tools
Troubleshoot complex production issues, identify root causes, and implement durable solutions
Strengthen security, patching, vulnerability remediation, backup, recovery, and infrastructure resilience
Partner across Security, Development, Service Desk, and business teams on infrastructure projects and operational challenges
Help migrate the production environment from Azure Government to Azure Commercial and modernize its architecture

Requirements

What you’ll need

3–5+ years of hands-on systems administration experience in a production environment
Strong Windows Server, Active Directory, Group Policy, DNS, networking, and Microsoft 365 experience
Hands-on cloud administration experience, ideally with Microsoft Azure
Working knowledge of virtualization, storage, backup and recovery, monitoring, and infrastructure security
Practical PowerShell automation experience
Strong troubleshooting skills and experience owning technical problems through resolution
Security-minded, continuous-improvement approach and judgment to work independently
Degree, certifications, or equivalent practical experience

Benefits

Comp & perks

Hybrid schedule eligible after the first 90 days (3 days onsite/2 days remote)
Equal opportunity and inclusive work environment
Meaningful autonomy and broad technical exposure
Opportunity to directly influence infrastructure evolution
Opportunity to introduce better approaches and see direct impact of work