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OT Security Architect

Asterism IT SolutionsBedford, IN🇺🇸United StatesPosted 5 Aug 2026

Quick Overview

Work Type
Hybrid
Level
Mid Senior

Job Description

Job title – OT Security Architect

Work location - Bedford, Indiana--Hybrid

Contract duration – 6 months
 
No CPT,OPT,H1B

Mandatory skills - The role focuses on Rockwell PLC (ControlLogix/CompactLogix) systems, Ignition SCADA, and 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

Domain – Cyber Security

Preferred Certifications

IEC 62443 Cybersecurity Expert
GICSP / CISSP
Rockwell Automation certifications

Complete 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.
Interview mode -  Virtual

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