OT Infrastructure Architect

Job Title: OT Infrastructure Architect

Role Type: 12 month contract

IV Process: 2 rounds – 1st video 30 minute, 2nd 1 hour video

Location: San Antonio, Findlay, Denver

MUST HAVE:

Operational Technology (OT) expertise,

Infrastructure Architecture background across:

• Windows & Linux systems
• Azure cloud
• Networking & system integrations

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OT Infrastructure Architect – Job Description

Overview

We are seeking an experienced OT-Focused Infrastructure Architect to design and optimize the architecture supporting critical operational technology (OT) environments. This role centers on understanding how systems interact, ensuring resiliency for critical control assets, and architecting secure, stable, and well‑segmented infrastructures across Windows, Linux, and Azure-based environments.

While this position requires a solid grounding in cyber principles, you will partner closely with a dedicated cyber infrastructure team.

Top Requirements

• SAFe Agile experience
• Operational Technology (OT) expertise, particularly within environments such as Honeywell or DeltaV
• Infrastructure Architecture background across:
  • Windows & Linux systems
  • Azure cloud
  • Networking & system integrations

Key Responsibilities

• Architect and implement OT and IT infrastructure that supports and protects critical operational systems.
• Define system-to-system interactions, data flows, and integration patterns to ensure a cohesive, high-performing OT environment.
• Design secure network architectures to minimize exposure, enhance segmentation, and support OT resiliency.
• Collaborate with cyber teams to incorporate security best practices while focusing on infrastructure design and reliability.
• Lead technical teams in installing, configuring, and maintaining infrastructure components.
• Monitor system performance, identify potential risks, and implement improvements to increase stability and fault tolerance.
• Develop comprehensive documentation covering architecture diagrams, operational procedures, and future-state design recommendations.

Required Skills & Experience

• Bachelor's degree in Computer Science, Information Technology, or a related field.
• Professional certifications such as:
  • Microsoft Certified: Azure Solutions Architect Expert
  • AWS Certified Solutions Architect (preferred but not required)
• Extensive knowledge of:
  • Infrastructure hardware and software
  • Networking and segmentation best practices
  • Windows and Linux operating systems
  • Security fundamentals applicable to OT and critical infrastructure
• Experience working with cloud platforms (Azure required; AWS/Google Cloud Platform beneficial).
• Several years of experience in infrastructure architecture, preferably supporting OT, industrial control systems, or other mission-critical environments.
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