OT Security Engineer

OT Security Engineer
San Diego, CA
Contract Position

Job Summary

We are looking for an experienced OT Security Engineer with strong expertise in OT/ICS cybersecurity, industrial automation, and vulnerability assessments. The candidate will perform onsite security assessments across industrial environments, evaluate both OT and IT assets, identify vulnerabilities and risks, and provide actionable remediation recommendations.

The ideal candidate should have hands-on experience with Nozomi, Claroty, Tenable.ot, Microsoft Defender for IoT, and traditional IT vulnerability assessment tools such as Nessus, Qualys, and Rapid7.

Key Responsibilities

• Perform onsite OT/ICS vulnerability assessments across industrial environments.
• Conduct vulnerability scanning, security assessments, and risk analysis for both OT and IT assets.
• Assess industrial environments including PLCs, SCADA systems, HMIs, engineering workstations, servers, and network devices.
• Utilize OT security platforms such as Nozomi Networks, Claroty, Tenable.ot, and Microsoft Defender for IoT.
• Perform IT vulnerability assessments using Nessus Professional, Qualys, and Rapid7.
• Review OT/ICS network architecture and identify security vulnerabilities and potential risks.
• Analyze findings and assign appropriate risk ratings based on business and operational impact.
• Develop detailed assessment reports, remediation recommendations, and executive-level summaries.
• Present security findings and recommendations to client stakeholders and management.
• Work closely with plant operations, automation, engineering, and IT teams during onsite assessments.
• Support identification and prioritization of vulnerabilities while considering industrial safety and operational requirements.