Sr. IT Systems Administrator I (II)

Location: Hybrid in Audubon, Pennsylvania, United States

Company

Critical infrastructure organization focused on secure, reliable, and compliant technology operations.

What you will do

• Design, implement, and manage highly available Windows Server infrastructure.
• Administer Active Directory and Entra ID, including Group Policy, identity governance, conditional access, MFA, and privileged access controls.
• Support Microsoft 365 services, including Exchange Online, SharePoint Online, Teams, and security and compliance configurations.
• Implement and maintain Azure services, including Azure AD Connect, Virtual Machines, Backup, Monitor, and role-based access controls.
• Automate provisioning, configuration management, compliance enforcement, patching, and operational workflows using PowerShell, Ansible, MECM, Intune, and DSC.
• Manage virtualization, system monitoring, troubleshooting, documentation, security hardening, vulnerability remediation, and audit evidence across on-premises and cloud environments.

Requirements

• Bachelor of Science in Computer Science, Engineering, or equivalent work experience.
• Experience with security practices for Windows Server, Azure, Entra ID, and Microsoft 365 environments.
• Strong attention to detail and ability to produce high-quality work products.
• Effective verbal and written communication skills.
• Experience with quantitative and qualitative analysis.
• Proficiency with Microsoft Office Suite, including Word, Excel, and PowerPoint.

Nice to have

• Advanced degree or MBA.
• Experience with PJM operations, markets, planning functions, or committees.
• Familiarity with NERC CIP compliance frameworks, evidence management, and audit preparation.
• Experience with hybrid identity environments and enterprise automation platforms such as PowerShell DSC, MECM, Intune, and Ansible.

Culture & Benefits

• Hybrid work arrangement based in Audubon, Pennsylvania.
• Work across on-premises and cloud Microsoft platforms.
• Collaboration with cross-functional teams on cloud integrations, application deployments, virtualization strategy, and infrastructure modernization.