SRE Windows Engineer with On-prem Experience

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are seeking an experienced Windows Engineer with strong hands-on experience supporting Windows Server and on-premises enterprise infrastructure. The ideal candidate will have experience managing, troubleshooting, monitoring, patching, and maintaining Windows environments within corporate data centers.

The candidate should be comfortable working with Windows Server, Active Directory, DNS, DHCP, Group Policy, VMware, PowerShell, and enterprise infrastructure, along with supporting hybrid environments where on-premises systems integrate with cloud platforms.

Location: New Jersey/ Columbus, OH

Key Responsibilities

• Administer and support Windows Server 2016/2019/2022 environments across on-premises data centers.
• Install, configure, maintain, and troubleshoot physical and virtual Windows servers.
• Manage Active Directory, Group Policy, DNS, DHCP, and Windows authentication services.
• Perform server patching, upgrades, vulnerability remediation, and configuration management.
• Troubleshoot Windows OS, application, networking, performance, and connectivity issues.
• Manage VMware vSphere/ESXi virtual machines and support server provisioning and migrations.
• Monitor server health, CPU, memory, disk, network, and application performance.
• Perform root-cause analysis for production incidents and implement corrective actions.
• Develop and maintain PowerShell scripts to automate server administration and operational tasks.
• Support enterprise backup, disaster recovery, and high-availability environments.
• Work with networking, storage, security, database, application, and DevOps teams to resolve infrastructure issues.
• Participate in production deployments, maintenance activities, and after-hours support when required.
• Maintain infrastructure documentation, operational procedures, and knowledge-base articles.
• Support hybrid infrastructure connecting on-premises systems with AWS/Azure environments.
• Participate in incident, problem, and change management processes.
• Ensure infrastructure meets security, compliance, availability, and operational standards.

Required Skills

• 5+ years of experience as a Windows Engineer / Windows Systems Administrator.
• Strong hands-on experience with Windows Server 2016/2019/2022.
• Strong on-premises data center infrastructure experience.
• Hands-on experience with:
• Active Directory
• Group Policy
• DNS/DHCP
• PowerShell
• VMware vSphere/ESXi
• Windows Server administration
• Server patching and upgrades
• Performance monitoring and troubleshooting
• Experience supporting production enterprise environments.
• Strong knowledge of TCP/IP, networking, firewalls, and server connectivity.
• Experience with enterprise monitoring and ticketing tools.
• Strong troubleshooting and problem-solving skills.
• Ability to work with cross-functional infrastructure and application teams.

Preferred Skills

• Experience with AWS or Azure in hybrid environments.
• Knowledge of Microsoft Failover Clustering.
• Experience with SCCM/MECM or other endpoint/server management tools.
• Experience with enterprise backup technologies.
• Knowledge of Active Directory Federation Services (ADFS).
• Experience with automation using PowerShell, Ansible, or Python.
• Knowledge of Windows security hardening and vulnerability remediation.
• Experience with ServiceNow and ITIL processes.
• Exposure to infrastructure-as-code and DevOps practices.