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OT/ ICS Systems Security Architect (Rockwell PLC & Ignition SCADA)

Siri Infosolutions IncBedford, MA🇺🇸United StatesPosted 9 Jul 2026

Why This Role Stands Out

This hybrid role offers a fantastic opportunity to architect cutting-edge OT/ICS security solutions, leveraging your expertise in Rockwell PLC and Ignition SCADA to ensure compliance with critical industry standards. You'll thrive here if you're a seasoned security professional with a passion for industrial control systems and a drive to shape secure operational environments. Apply now to make a significant impact within a forward-thinking company.

Quick Overview

Work Type
Hybrid
Level
Mid Senior

Job Description

Job title: OT/ ICS Syetms Security Architect (Rockwell PLC & Ignition SCADA)

Work Location: Bedford, MA- 01730 (Hybrid)

Duration: Long Term

 

Must Have:

  • The role focuses on Rockwell PLC (ControlLogix/CompactLogix) systems
  • Ignition SCADA
  • compliance with EU Cyber Resilience Act (CRA), IEC 62443/ISA99, ISA 95, GMP, and FDA 21 CFR Part 11.
  • Minimum years of experience needed in the required skills- 8-10 years
  • Minimum over all work experience required – 10 years

Certifications:

  • IEC 62443 Cybersecurity Expert
  • GICSP / CISSP
  • Rockwell Automation certifications
  • Complete job description

Detailed Job Description:

  • Define and maintain global OT reference architecture (Purdue model, zones & conduits, DMZ).
  • Lead CRA implementation and gap assessments for OT systems.
  • Secure and harden Rockwell PLCs and Ignition SCADA environments.
  • Perform OT cyber risk assessments and threat modelling.
  • Implement secure configuration baselines for servers and engineering workstations.
  • Ensure compliance with GMP & FDA 21 CFR Part 11 (audit trails, electronic records, RBAC).
  • Support Computer System Validation (CSV) documentation (URS/NFR/FS/DS/IQ/OQ/PQ).
  • Define patch management and vulnerability handling processes for validated OT systems.
Support audit readiness and regulatory inspections

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