Senior OT Cybersecurity & CRA Compliance Architect
Arnex Solutions LLC
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Job Details
Skills
- SCADA
- PLC
- ROCKWELL
- OT SECURITY
Summary
- Lead CRA implementation and gap assessments for OT systems.
- Define and maintain global OT reference architecture (Purdue model, zones & conduits, DMZ).
- 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.
- Rockwell ControlLogix / CompactLogix
- Studio 5000
- EtherNet/IP
- Ignition SCADA configuration & security
- OPC / Industrial protocols
- IEC 62443 implementation
- Network segmentation & firewall design
- Secure remote access architecture
- Vulnerability & patch management (OT context)
- Threat modeling & risk assessment
- EU Cyber Resilience Act (CRA)
- GMP (Pharma manufacturing systems)
- FDA 21 CFR Part 11
- Computer Svstem Validation (CSV)
System Hardening
- Windows Server hardening (SCADA, Historian,
- Engineering Stations)
- Active Directory design and security for OT domains
- CIS benchmarks & security baseline implementation
- Group Policy (GPO) hardening and privilege management
- Application whitelisting (e.g., AppLocker)
- Secure service configuration & port minimization
- Local admin restriction & credential protection
- Secure RDP configuration & jump server model
- Patch validation in GMP-regulated environments
- Backup integrity verification & disaster recovery validation
- Log configuration, retention & audit trail protection
Experience Required
- 8+ years in OT / ICS cybersecurity
- 3+ years in Pharma or regulated industry
- Hands-on experience with Rockwell PLC and Ignition
SCADA
- Experience implementing IEC 62443 controls
Preferred Certifications
- IEC 62443 Cybersecurity Expert
- GICSP / CISSP
- Rockwell Automation certifications
- Dice Id: 91124621
- Position Id: 348-38988-
- Posted 22 hours ago
Company Info
About Arnex Solutions LLC
At Arnex Solutions LLC, we go beyond traditional consulting. We blend expertise with innovation to offer end-to-end solutions that bridge the gap between business challenges and technological advancements.
Our Services:
Strategic IT Advisory: Our experienced consultants collaborate with you to craft customized IT strategies that drive growth and efficiency. We transform technology into a competitive advantage.
Talent Resourcing: Access top IT talent with ease. Our staffing solutions connect you with skilled professionals who align with your unique business requirements.
Cloud Excellence: Leverage the power of the cloud with our tailored services. From strategy to execution, we help you harness cloud capabilities for innovation and scalability.
Why Choose Arnex Solutions LLC:
Holistic Approach: We're your all-in-one partner for both strategic consulting and talent acquisition. Our holistic solutions ensure your business stays ahead in a dynamic landscape.
Client-Centric Philosophy: Your success is at the heart of everything we do. Our collaborative approach ensures we understand your unique needs and deliver impactful solutions.
Innovation Infused: We embrace emerging technologies to drive innovation. Partnering with Arnex Solutions LLC means accessing solutions that position you for sustained success.
Enduring Partnerships: Our commitment extends beyond a single project. When you choose Arnex Solutions LLC, you choose a partner dedicated to your long-term growth.
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