OT Security Architect - Arden Hills - Ventures Unlimited Inc

    Ventures Unlimited Inc
    Ventures Unlimited Inc Arden Hills

    4 days ago

    $130,000 - $210,000 (USD) per year * Technology / Internet
    Description

    Job Description

    Must Have Technical/Functional Skills


    • Proven leader with a strong background in OT cybersecurity architecture and execution, capable of designing and driving implementation of complex, multi-site solutions in manufacturing environments.


    • Strong foundation in network engineering and infrastructure, with experience in network design, segmentation, and secure architecture—especially in hybrid IT/OT environments.


    • Delivered full lifecycle solutions including:

    o Secure remote access

    o Network and OT segmentation (macro and micro)

    o OT IDMZ design and deployment

    o Proxy integrations

    o Legacy asset protection and internet restriction policies


    • Hands-on experience with OT security platforms such as Claroty, Nozomi, or Ordr, integrated with NAC (Aruba or Cisco), firewalls, and identity-based controls.


    • Deep experience in infrastructure implementation, including routing, switching, and zoning technologies within modern and legacy manufacturing networks.


    • Expertise in domain architecture best practices for OT, including designing isolated OT domains, proper Active Directory (AD) trust models, and secure domain controller (DC) placement and hardening strategies.


    • Experience addressing domain controller patching challenges in OT environments, including:

    o Developing segmentation strategies to isolate legacy systems from fully patched domain controllers

    o Designing dedicated legacy-supporting domain controllers with restricted access

    o Aligning firewall rules, DNS, and authentication flows to reduce risk from unpatched or constrained systems


    • Skilled in developing and enforcing zoning and segmentation strategies, aligned with ISA/IEC 62443, NIST CSF, and the Purdue Model.


    • Strong ability to coordinate across global sites, driving standardization of architecture, tooling, and governance.


    • A vocal and assertive leader who can influence decisions, rally teams, and gain alignment across cybersecurity, IT, OT, and operations stakeholders.


    • Excellent communicator with the ability to document strategy and architecture clearly and drive adoption from the boardroom to the plant floor.


    • Demonstrated ability to manage technical debt, balance operational risk, and deliver scalable, resilient security solutions in production environments.

    * This salary range is an estimation made by beBee
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