OT Cybersecurity Architect - Reference Architecture Lead

Veridian Tech Solutions, Inc.; Cincinnati (OH); On-site; USD 120,000 - 180,000; Full time

Job summary

Veridian Tech Solutions, Inc. is seeking an OT security engineer to deploy and operate Nozomi Guardian, Zscaler ZIA/ZPA, and CyberArk PAM/PSM across OT environments.

You will define malware scanning and wireless security strategies, develop OT reference architectures, and support multi-site deployments. Responsibilities include design, validation, and handover to support, with emphasis on compliance readiness (CMMC/NIS2/IEC 62443) and remediation tracking.

Qualifications

• Hands-on experience deploying and operating Nozomi Guardian/CMC, Zscaler ZIA/ZPA, and CyberArk PAM/PSM in OT or IC environments.
• Experience with tool design, configuration, validation, stabilization, and handover to support across multiple sites.
• Experience defining OT malware scanning and OT wireless security strategies aligned with industrial operational constraints.
• Experience developing OT reference architectures, target-state diagrams, control mappings, and adoption guidance.
• Good working knowledge of compliance frameworks such as CMMC, EASA Part-IS, NIS2, IEC 62443, and NIST SP 800-82.
• Experience conducting compliance gap assessments, preparing evidence packages, and tracking remediation actions to closure.

Responsibilities

• Provide OT tools deployment support for Nozomi, Zscaler, and CyberArk across 15 partial OTN sites, including design, configuration, validation, and handover to support.
• Define the OT Malware Scanning Strategy and associated documentation aligned with cybersecurity policy and OT operational constraints.
• Define the OT Wireless Strategy and documentation covering RF planning, segmentation, and security controls.
• Publish the revised OT Reference Architecture Design, including target-state diagrams, control mappings, and adoption guidance for new sites.
• Provide CMMC, EASA Part-IS, and NIS2 compliance-readiness support, including gap assessments, evidence packages, and remediation planning.
• Drive OT defect remediation actions arising from Internal Audit findings, including root-cause analysis, corrective-action tracking, and closure evidence.
• Coordinate deployment and change activities through SNOW and provide stabilization, knowledge transfer, and handover to support.

Skills

Nozomi Guardian

Zscaler ZIA/ZPA

CyberArk PAM/PSM

OT malware scanning

OT wireless security

OT reference architectures

CMMC

NIS2

IEC 62443

NIST SP 800-82

ServiceNow

RF planning

AWS/Azure administration

Windows/Linux administration

Palo Alto / Check Point

Tools

Runzero

Maximo

ServiceNow

Algosec

Palo Alto

Check Point

Cisco Catalyst 9000

RF planning

Windows administration

Linux administration

AWS administration

Azure administration

Nozomi Guardian

Job description

Veridian Tech Solutions, Inc. is seeking an OT security engineer to deploy and operate Nozomi Guardian, Zscaler ZIA/ZPA, and CyberArk PAM/PSM across OT environments.

You will define malware scanning and wireless security strategies, develop OT reference architectures, and support multi-site deployments. Responsibilities include design, validation, and handover to support, with emphasis on compliance readiness (CMMC/NIS2/IEC 62443) and remediation tracking.