Senior OT Network Engineer: Industrial Security & SDA

Gtatelecom; Georgetown (KY); On-site; USD 120,000 - 180,000; Full time

Job summary

Gtatelecom is seeking a Senior OT Network Engineer to design, implement, and maintain secure OT networks across manufacturing environments in the Georgetown, KY area. You will lead Cisco SD-Access deployments, apply zero-trust principles, and collaborate with IT and plant teams to ensure resilient operations on the plant floor.

You will mentor local technical teams, troubleshoot complex incidents, and drive secure networking initiatives across Purdue Model layers, IDMZ, and segmentation

Qualifications

• 10+ years of progressive network engineering experience.
• Hands-on routing, switching, LAN/WAN, and high-availability networks.
• Experience designing or securing OT networks in manufacturing.
• Knowledge of segmentation, zero-trust, and IDMZ design.
• Strong communication and stakeholder collaboration.
• Bachelor’s degree in STEM or equivalent.

Responsibilities

• Deploy and manage OT network infrastructure across industrial environments.
• Design secure architectures using IDMZ and segmentation across Purdue Model layers.
• Implement Cisco SD-Access for fabric automation and identity-based access.
• Troubleshoot complex network incidents and coordinate upgrades and maintenance.
• Collaborate with IT and plant teams to translate needs into secure solutions.
• Mentor local technical teams on OT networking and security.

Skills

10+ years experience

Routing & Switching

OT networks

Network segmentation

Zero-trust security

Communication & stakeholders

Bachelor's degree in STEM

Education

Bachelor’s degree in STEM

Tools

Cisco SDA

DNA Center

Cisco ISE

Catalyst Center

Job description

Gtatelecom is seeking a Senior OT Network Engineer to design, implement, and maintain secure OT networks across manufacturing environments in the Georgetown, KY area. You will lead Cisco SD-Access deployments, apply zero-trust principles, and collaborate with IT and plant teams to ensure resilient operations on the plant floor.

You will mentor local technical teams, troubleshoot complex incidents, and drive secure networking initiatives across Purdue Model layers, IDMZ, and segmentation