OT/IT Network Engineer - Secured Manufacturing

Vulcan Elements; Durham (NC); On-site; USD 90,000 - 130,000; Full time

Job summary

Vulcan Elements is seeking a Network Engineer to design, deploy, and maintain robust network infrastructure for office and manufacturing facilities. You will ensure secure, reliable connectivity across IT and OT environments, with hands-on experience in regulated or government-adjacent settings.

The role requires deep expertise in enterprise networking, strong security mindset aligned with CMMC/NIST 800-171, and the ability to support audits and government contract reviews.

Qualifications

• 3+ years of network engineering experience, preferably in manufacturing, defense, or government-regulated environment.
• Hands-on OT/IT converged network design experience including Modbus, EtherNet/IP, PROFINET and ICSe/SCADA architectures.
• Direct hands-on experience with Cisco Meraki (switching, wireless, security appliances) and Ubiquiti UniFi (switches, APs, gateways).
• Working knowledge of NIST 800-171, CMMC, and network-level controls; experience supporting or preparing for CMMC assessments preferred.
• Government contractor or DoD program experience with CUI handling and export-controlled environments (ITAR/EAR) preferred.
• Strong routing and switching fundamentals (BGP, OSPF, STP, VLANs, QoS, SD-WAN).
• Problem-solving skills to diagnose and resolve complex IT/OT network issues with minimal downtime.
• Ability to lift up to 50 lbs and perform hardware installation in a manufacturing setting.
• Cisco CCNA/CCNP and Meraki ECMS or CompTIA Network+/Security+ certifications are a plus.

Responsibilities

• Network Design and Deployment: Architect, implement, and maintain LAN/WAN/WLAN across office and manufacturing environments using Cisco Meraki and Ubiquiti UniFi.
• OT Network Management: Design and maintain segmented OT/IT networks for industrial control systems and manufacturing equipment with strict zone isolation.
• Security and Compliance: Implement controls aligned with NIST and CMMC, including access control, boundary protection, audit logging, and incident response.
• Firewall and Segmentation: Configure and manage firewalls, VLANs, ACLs, and micro-segmentation to protect CUI and sensitive data.
• Monitoring and Troubleshooting: Proactively monitor network health, respond to outages, and perform root cause analysis across IT/OT.
• VPN and Remote Access: Administer secure site-to-site and client VPNs with least-privilege access.
• Documentation: Maintain network diagrams, configuration baselines, change logs, and SSPs for CMMC assessments.
• Cross-Functional Collaboration: Work with Engineering, Operations, and IT to support automation, data acquisition, and production systems.
• Government and Compliance Support: Support internal audits, CMMC assessments, and government contract reviews with thorough documentation.

Skills

Networking

Cisco Meraki

Ubiquiti UniFi

OT/IT convergence

NIST 800-171

CMMC

BGP/OSPF

Security best practices

Troubleshooting

Documentation

Education

CCNA/CCNP

CompTIA Security+

Tools

Meraki

UniFi

Job description

Vulcan Elements is seeking a Network Engineer to design, deploy, and maintain robust network infrastructure for office and manufacturing facilities. You will ensure secure, reliable connectivity across IT and OT environments, with hands-on experience in regulated or government-adjacent settings.

The role requires deep expertise in enterprise networking, strong security mindset aligned with CMMC/NIST 800-171, and the ability to support audits and government contract reviews.