Systems Administrator / Infrastructure Engineer (OT & Azure)

About the Opportunity

We are seeking a Systems Administrator / Infrastructure Engineer to support and maintain critical server infrastructure and applications across Operational Technology (OT) and enterprise network environments. This role is ideal for a technology professional who enjoys troubleshooting complex systems, working with modern Microsoft technologies, and contributing to infrastructure modernization and lifecycle initiatives.

You will play a key role in deploying, supporting, and optimizing server platforms, cloud services, and infrastructure solutions while ensuring security, reliability, and operational excellence.

Key Responsibilities

• Support, troubleshoot, and maintain server-based applications across both OT and business network environments.
• Deploy, administer, and support Microsoft Windows Server environments.
• Participate in infrastructure projects, including system deployments, upgrades, migrations, and lifecycle management initiatives.
• Assist with the design, testing, implementation, and ongoing support of application platforms and infrastructure solutions.
• Analyze technical issues, identify root causes, and implement effective resolutions.
• Create and maintain technical documentation, procedures, and system records.
• Collaborate with cross-functional teams to ensure platform stability, security, and performance.
• Contribute to infrastructure security, compliance, and operational best practices.

Required Qualifications

• Experience supporting and troubleshooting server-based applications in both on-premises and Microsoft Azure environments.
• Hands-on experience deploying, supporting, and troubleshooting Microsoft Windows Servers.
• Experience participating in system implementation, deployment, upgrade, or lifecycle management projects.
• Strong analytical and problem-solving skills with the ability to diagnose and resolve complex technical issues.
• Excellent verbal and written communication skills.
• Ability to document infrastructure environments, configurations, and support procedures.

Preferred Qualifications

• Understanding of Operational Technology (OT) environments and security concepts, including:
  • Purdue Model
  • Air-gapped networks
  • Zero Trust architecture
• Experience with Microsoft Azure Infrastructure-as-a-Service (IaaS) and Software-as-a-Service (SaaS) offerings.
• Experience developing and maintaining PowerShell scripts for automation, monitoring, and system administration.
• Hands-on experience with VMware virtualization technologies, including:
  • VMware ESXi
  • VMware vCenter
  • VxRail (preferred)
• Associate degree or higher in Information Technology, Computer Science, Engineering, or a related field.
• Microsoft certifications related to Windows Server, Azure, or other relevant technologies.
• Experience deploying, administering, and troubleshooting Linux servers (RHEL, CentOS, or similar distributions).
• Experience administering infrastructure platforms while supporting cybersecurity, risk management, and compliance requirements.
• Familiarity with security and administration tools such as:
  • Tenable Nessus
  • Tanium
  • Similar enterprise management and security platforms
• Understanding of Agile methodologies and/or the SAFe framework.
• Experience using Azure DevOps (ADO) or similar DevOps project management tools.

What Will Make You Successful

• Ability to quickly learn and apply new technologies in a fast-paced environment.
• Strong experience supporting Microsoft Windows server environments.
• Experience supporting operational technology (OT) applications and systems.
• Proven analytical mindset with a demonstrated ability to identify, communicate, and resolve technical challenges.
• A collaborative approach and commitment to continuous improvement.