Sign upLog in
See more jobs

Sr. OT Network Engineer

Intone Networks

  • Liberty, NC
  • 4 days ago

    Highlights

    The successful candidate will design and deploy secure, resilient industrial networks-leveraging Cisco SD-Access and microsegmentation strategies-to ensure zero unplanned downtime across manufacturing environments. Architect secure industrial networks incorporating IDMZ, macro-segmentation, and granular microsegmentation policies across Purdue Model layers using zero-trust network design principles.

    Numbers & Facts

    LocationLiberty, NC

    Description

    We are seeking a hands-on Sr. OT Network Engineer for a contract position (6+ months) based in Liberty, North Carolina. This onsite role serves as the critical bridge between IT and plant engineering. The successful candidate will design and deploy secure, resilient industrial networks-leveraging Cisco SD-Access and microsegmentation strategies-to ensure zero unplanned downtime across manufacturing environments.

    Responsibilities

    • Lead the deployment, modernization, and day-to-day lifecycle management of OT network infrastructure.
    • Architect secure industrial networks incorporating IDMZ, macro-segmentation, and granular microsegmentation policies across Purdue Model layers using zero-trust network design principles.
    • Drive the adoption of Cisco SD-Access (SDA) within the OT environment to automate fabric deployment and enforce identity-based access control.
    • Provide tier-3 troubleshooting for complex network incidents and coordinate major cutovers, upgrades, and maintenance windows.
    • Translate production requirements for IT and plant teams, while mentoring local IT support on OT network and security fundamentals.

    Qualifications

    • Required

    • Bachelor's degree in a STEM field or equivalent experience.

    • 10+ years of progressive network engineering experience.

    • Proven track record securing manufacturing, industrial, or plant-floor networks using zero-trust frameworks, IDMZ, and segmentation.

    • Strong hands-on experience troubleshooting complex routing, switching, and fabric-based network issues in high-availability environments.

    • Hands-on experience with enterprise LAN/WAN and industrial OT network environments.

    • Experience with Cisco SD-Access (SDA) fabric architectures, DNA Center / Catalyst Center, and Cisco ISE.

    • Proficiency with VLANs, routing, switching, redundancy, and Next-Generation Firewalls (NGFW).

    • Knowledge of industrial wireless networks and high-availability design.

    • Understanding of plant-floor, automation, and edge systems utilizing industrial protocols such as EtherNet/IP and Modbus.

    • Exceptional interpersonal skills with a strong ownership mindset to guide cross-functional technical and non-technical stakeholders.

    • Preferred

    • Active certifications such as CCNP, CCIE, CISSP, or GICSP.

    Similar Jobs