Industrial OT/ICS Network Engineer — 50% Travel

Prime Controls Lp; Lewisville (TX); On-site; USD 90,000 - 120,000; Full time

Benefits offered by this job

Health, Dental, Vision

ESOP Program

401(k) matching

Job summary

Prime Controls seeks an ETS Network Specialist to design, configure, and support industrial control system networks across customer sites. You will ensure secure, high‑performance communications between control devices, servers, and remote systems to support project execution and long‑term infrastructure planning.

The role requires hands-on experience with Layer 2/3 networks, industrial switches (Cisco, Stratix, Hirschmann), VPNs, and VLANs, plus knowledge of cyber security standards such as

Qualifications

• 3+ years of hands-on experience in industrial networking or OT environments.
• Working knowledge of routing, switching, and VLAN management.
• Ability to terminate and troubleshoot Ethernet cables and fiber optics.
• Strong understanding of control system communication protocols and architecture.
• Familiarity with industrial network security standards.
• Excellent documentation and communication skills.
• Industry certifications (e.g., CCNA, CompTIA Network+)

Responsibilities

• Design Layer 2/3 network architectures for control systems, including switch, router, and firewall configurations.
• Install, configure, and support industrial switches, VPNs, and VLANs.
• Implement network segmentation and security per NIST 800-82 and ISA/IEC 62443 standards.
• Troubleshoot connectivity issues in client networks.
• Document network diagrams, IP schemes, and device inventories.
• Coordinate with project engineers and field personnel to deploy and validate networks during FAT/SAT.
• Maintain firewall rules and access control policies for control system integrity.
• Participate in client meetings to discuss networking strategy and schedules.
• Travel up to 50%.

Skills

OT networking

Layer 2/3 design

Cisco/Stratix/Hirschmann

VPNs & VLANs

Security mindset

Education

Associate's or Bachelor's in CS/Networking/Engineering

Tools

Cisco devices

Stratix switches

Hirschmann switches

Job description

Prime Controls seeks an ETS Network Specialist to design, configure, and support industrial control system networks across customer sites. You will ensure secure, high‑performance communications between control devices, servers, and remote systems to support project execution and long‑term infrastructure planning.

The role requires hands-on experience with Layer 2/3 networks, industrial switches (Cisco, Stratix, Hirschmann), VPNs, and VLANs, plus knowledge of cyber security standards such as