Senior System Administrator (Windows)

Jobgether • United States

Remote

This Job is No Longer Active This position is no longer accepting applications

AI Summary

Senior System Administrator responsible for managing and enhancing large-scale Windows infrastructure supporting critical business operations. Key responsibilities include Windows Server administration, Active Directory management, automation, security, and infrastructure reliability across on-premises and cloud environments. Requires 5+ years of enterprise Windows administration experience, advanced PowerShell scripting, VMware expertise, and strong troubleshooting skills.

Key Highlights

Enterprise Windows Server administration and Active Directory management

Advanced PowerShell automation and scripting for provisioning and remediation

VMware vSphere and Windows virtual machine deployment expertise

Infrastructure modernization and cloud migration experience

Key Responsibilities

Administer and engineer large Windows Server environments across physical, virtual, on-premises, and public cloud platforms

Manage and optimize Active Directory environments including domain controllers, replication, Group Policy, DNS dependencies, authentication, trusts, and directory health

Design, plan, and implement system improvements, upgrades, migrations, and lifecycle management activities with minimal disruption

Perform advanced troubleshooting, root-cause analysis, and resolution of complex infrastructure issues while maintaining technical documentation and operational standards

Provide senior-level escalation support to improve system security, reliability, performance, recoverability, and supportability

Monitor Windows systems and services, analyze operational trends, and proactively address risks before they impact business operations

Implement security best practices including vulnerability remediation, access controls, certificate management, and secure administration processes

Support VMware environments by deploying, maintaining, and troubleshooting Windows virtual machines and assisting with virtualization platform initiatives

Develop PowerShell scripts, modules, and automation workflows to streamline provisioning, configuration, patching, reporting, and remediation processes

Contribute to infrastructure modernization efforts including cloud migrations, automated deployment models, and platform improvements

Support storage, backup, and recovery activities by validating system dependencies and ensuring recovery readiness

Participate in 24/7 on-call rotations and scheduled after-hours maintenance activities when required

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Technical Skills Required

Windows Server administration Active Directory management PowerShell scripting VMware vSphere

Benefits & Perks

Competitive annual salary range of approximately $106,000-$125,000

Fully remote work environment

Comprehensive medical, dental, and vision insurance

401(k) retirement plan

Paid time off and paid parental leave

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Nice to Have

Familiarity with Microsoft 365, Entra ID, Exchange Online, SharePoint Online, Teams, or Intune

Exposure to Linux administration

Experience with monitoring platforms and IT service management tools

Experience with cloud platforms such as Azure or AWS

Experience with automation, configuration management, Infrastructure as Code, or deployment tools such as Ansible and Terraform

Job Description

This role is responsible for managing and enhancing a large-scale Windows infrastructure environment supporting critical business operations.The position focuses on Windows Server administration, Active Directory management, automation, security, and infrastructure reliability.You will serve as a technical expert, helping design, troubleshoot, and improve enterprise systems across on-premises and cloud environments.The role offers the opportunity to influence infrastructure modernization, operational efficiency, and platform stability.Working closely with cross-functional infrastructure teams, you will contribute to resilient, secure, and scalable technology solutions.

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