OT Infrastructure Engineer - SCADA, Security & Networking

Inframark; Northern (KY); Hybrid; USD 95,000 - 125,000; Full time

Job summary

Inframark is hiring an OT Infrastructure Engineer to design, deploy, and secure OT infrastructure for water and wastewater systems. You will administer Windows servers/workstations, manage AD/DNS/DHCP, and support virtualization and industrial networks.

You will contribute to cybersecurity, remote access, SCADA/PLC/HMI support, and field deployments, while partnering with project teams and customers to optimize reliability and performance.

Qualifications

• Bachelor's degree or equivalent experience in IT or related field.
• 5+ years supporting IT/OT environments, industrial networks, 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.

Responsibilities

• Install, configure, maintain, patch, upgrade, and secure Windows Server and Workstation operating systems supporting OT environments.
• Configure and support 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 routing, switching, firewalls, VPNs, wireless, and cellular communications.
• Design, deploy, support, and migrate secure remote access solutions, including IPsec VPN technologies, BeyondTrust, and approved remote connectivity platforms.
• Support SCADA, HMI, PLC, alarming, telemetry, and OT 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.

Skills

Windows Server

Active Directory

DNS

DHCP

Group Policy

Patch Management

System Hardening

Virtualization

Industrial Networking

Fortinet Firewall

Cisco Networking

OT Cybersecurity

SCADA

HMI

PLC

Education

Bachelor's degree in IT/Cybersecurity/CS/Engineering

Tools

VMware ESXi

vSphere

Hyper-V

Veeam

Synology

FortiNAC

Job description

Inframark is hiring an OT Infrastructure Engineer to design, deploy, and secure OT infrastructure for water and wastewater systems. You will administer Windows servers/workstations, manage AD/DNS/DHCP, and support virtualization and industrial networks.

You will contribute to cybersecurity, remote access, SCADA/PLC/HMI support, and field deployments, while partnering with project teams and customers to optimize reliability and performance.