Inframark · 16 hours ago
OT NETWORK AND SYSTEMS ADMINISTRATOR
Raleigh, NC
Full-time
Hybrid
Mid Level
3+ years expInframark is seeking an Operational Technology (OT) Network and Systems Administrator to assist in the design and deployment of IT/OT infrastructure. The role involves configuring and deploying servers, workstations, and network equipment while ensuring system security, reliability, and performance in industrial environments.
InfrastructureTransportationWaste ManagementWaterWater Purification
Responsibilities
Configure and deploy Windows and Linux servers in IT/OT environments
Configure and deploy workstations and thin clients for operators, engineers, and technicians
Install and configure virtualization solutions (VMware, Hyper-V)
Implement system updates, patches, and security hardening for IT/OT assets
Develop and maintain system documentation and configuration guides
Configure, deploy and troubleshoot networking devices (managed switches, routers, firewalls, cellular gateways)
Implement network segmentation and security best practices (e.g., firewalls, VLANs, ACLs)
Design and implement secure remote access solutions for customers and support teams
Maintain accurate network documentation including topology diagrams, IP address schemes, and device configurations
Assist in deployment and integration (SCADA for high-level monitoring, DCS for complex process control, PLC for individual machine control, HMI for operator interaction) and IT/OT Network infrastructure
Support industrial automation projects by ensuring proper data flow between field devices and enterprise systems
Work with cloud and edge computing solutions for data analytics and industrial IoT (IIoT) applications
Assist in evaluating and integrating new technologies and systems as part of digital transformation initiatives
Implement security best practices aligned with IEC 62443, NIST CSF, and other industry standards
Conduct system hardening and vulnerability assessments for IT/OT environments
Implement firewalls, intrusion detection/prevention, and endpoint security
Ensure compliance with industry regulations and customer security requirements
Provide on-site and remote support for IT/OT systems, including incident response and root cause analysis
Collaborate with operators, engineers, and IT teams to troubleshoot and diagnose system failures
Train end users and plant personnel on system functionality and best practices
Qualification
Required
Bachelor's degree in Electrical Engineering, Computer Science, Information Technology or a related field (or equivalent experience)
3+ years of experience in network/system administration, preferably in an industrial/OT environment
Strong understanding of Ethernet/IP networks, TCP/IP, routing, switching, and firewall configuration
Experience with Windows Server administration, Active Directory, and virtualization (e.g., VMware, Hyper-V)
Experience configuring Cisco, Fortinet, Palo Alto networking equipment, a plus
Hands-on experience with industrial networking (Hirschmann, Siemens, Allen-Bradley), a plus
Knowledge of cybersecurity principles for IT/OT environments
Strong troubleshooting skills and ability to work in fast-paced industrial settings
Preferred
CompTIA Network+, Security
Cisco CCNA/CCNP (Industrial Networking)
ISA/IEC 62443 Cybersecurity Certificate
Fortinet, Rockwell Automation, Siemens, or Hirschmann Certifications
Company
Inframark
Inframark is an Water Infrastructure Operations and Infrastructure Management Services.
1001-5000 employees
H1B Sponsorship
Inframark has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (2)
2024 (2)
2023 (2)
2021 (1)
2020 (1)
Funding
Current Stage
Late StageTotal Funding
unknown2020-12-21Acquired
Leadership Team
O
Ozong Etta
Chief Financial Officer
Recent News
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