Conduct OT asset inventories, risk assessments, and IEC 62443/NIST CSF gap analyses. Design zero-trust architectures, zones, conduits, DMZs, and IT/OT firewall rules. Implement secure vendor and engineer remote access, deploy OT monitoring tools, develop incident response playbooks, and train plant staff while protecting live industrial systems.
OT Cybersecurity Consultant (Contract)
Secure machinery that was never designed to be connected, without disrupting production.
What you'll do
- Perform OT asset inventories, risk assessments and gap analyses against IEC 62443 and NIST CSF
- Design zero-trust and zone/conduit architectures, DMZs and firewall rule sets between IT and OT
- Implement secure remote access for vendors and engineers
- Deploy and tune OT monitoring tools for threat detection
- Write incident response playbooks and train plant staff
Requirements
- 5+ years in cybersecurity, 3+ focused on ICS/OT
- Experience with OT security platforms (e.g., Claroty, Nozomi Networks, Dragos, Armis)
- Firewall configuration experience (Palo Alto, Fortinet, Cisco)
- Working knowledge of industrial protocols and safe testing practices on live systems
Nice to have: GICSP, GRID, ISA/IEC 62443 certification, CISSP; ability to obtain a security clearance for defense-sector clients.
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