OT Infrastructure Engineer - Southeast

Operational Technology Infrastructure Engineer

Step into the future with Inframark's award-winning Automation and Intelligence team. We deliver cutting-edge solutions in instrumentation and controls, industrial cybersecurity, data analysis, and remote network operations center services for water and wastewater plants. Elevate your career and join us ly today!

Our dedication to sustainability and community impact drives us to ensure clean, safe water for future generations. Whether you're at the start of your career or looking for advancement, Inframark offers purpose-driven work and opportunities for growth. We offer an attractive salary package, including a generous benefits package with health, dental, and life insurance, 401(k) plan, paid time off, sick leave, holidays, and wellness plan.

The OT Infrastructure Engineer serves as a hands on technical resource responsible for the design, deployment, administration, support, and standardization of secure Operational Technology (OT) infrastructure environments supporting water, wastewater, and other critical infrastructure systems. This role works closely with project teams, field personnel, customers, and cybersecurity resources to deliver reliable OT systems that support utility and industrial operations. Responsibilities include Windows server and workstation administration, industrial network design, firewall configuration, remote access technologies, virtualization platforms, SCADA, HMI, PLC, and operational technology system connectivity, cybersecurity hardening, communications infrastructure, and lifecycle management.

Responsibilities:

• Install, configure, maintain, patch, upgrade, and secure Windows Server and Workstation operating systems supporting OT environments.
• Configure and support Microsoft Active Directory, DNS, DHCP, Group Policy, and related infrastructure services.
• Install, configure, and support virtualization platforms including VMware ESXi, vSphere, and Hyper-V.
• Design, deploy, support, and troubleshoot industrial network infrastructure, including switching, routing, firewalls, VPNs, wireless, and cellular communications.
• Design, deploy, support, and migrate secure remote access solutions, including IPsec VPN technologies, Beyond Trust, and approved remote connectivity platforms
• Support SCADA, HMI, PLC, alarming, telemetry, and operational technology system communications and connectivity.
• Configure and support remote site communications technologies, including cellular modems, Sierra Wireless devices, enterprise text messaging services, and associated connectivity platforms.
• Provide technical input for infrastructure design, hardware selection, project estimates, and customer solutions.
• Evaluate and implement technologies that improve system reliability, maintainability, operational performance, and cybersecurity.
• Develop and maintain network diagrams, configuration standards, installation documentation, and support procedures.
• Implement and support cybersecurity controls including system hardening, vulnerability remediation, endpoint protection, certificate management, and secure remote access technologies.
• Provide remote and onsite support for customer OT infrastructure environments.
• Support startup, commissioning, warranty, managed services, and incident response activities.
• Perform troubleshooting and root cause analysis for infrastructure, communications, and system issues.
• Train customers, operators, and internal personnel on supported technologies, support processes, and security best practices.
• Support server, workstation, networking, firewall, and remote access standardization efforts across customer environments.

Education and Experience:

• Bachelor's degree in Information Technology, Cybersecurity, Computer Science, Engineering, or a related field preferred; equivalent experience may be considered.
• 5+ years of experience supporting information technology, operational technology, industrial network, or utility environments.
• Experience deploying, administering, and supporting server, workstation, network, and virtualization technologies.
• Experience supporting customer facing projects, field deployments, and operational support activities.
• Water, wastewater, industrial, SCADA, or critical infrastructure experience preferred.

Knowledge, Skills, and Abilities:

• Strong knowledge of Windows Server, Windows Workstation, Active Directory, DNS, DHCP, Group Policy, patch management, system hardening, and Microsoft infrastructure services.
• Strong knowledge of virtualization, backup, and recovery technologies, including VMware ESXi, vSphere, Hyper-V, Veeam, Synology, and related infrastructure platforms.
• Strong understanding of industrial and enterprise networking concepts including routing, switching, VLANs, VPNs, firewall policies, wireless networking, cellular communications, network security, and secure remote access technologies.
• Working knowledge of industrial networking and security platforms, including Fortinet Firewalls, Forti Switch, FortiAP, Forti Extender,…