OT Security Engineer: IT & OT Vulnerability Assessments

HMG AMERICA LLC

San Diego (CA)

On-site

USD 193,000 - 289,000

Full time

16 hours ago

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Job summary

HMG America LLC is seeking an OT Security Engineer to conduct IT & OT vulnerability assessments in San Diego, CA. The role requires deep hands-on experience with PLC/SCADA/HMI programming and a strong grasp of OT/ICS architectures and security standards.

You will lead onsite assessments, generate detailed reports, and present remediation recommendations to client stakeholders. Ideal candidates will have 8+ years in OT cybersecurity, familiarity with Nozomi, Claroty, and Tenable.ot, plus IT

Qualifications

8+ years of OT/ICS cybersecurity and industrial automation experience.
Hands-on experience with PLC, SCADA, and HMI programming and commissioning.
Strong understanding of Purdue Model, IEC 62443, and NIST 800-82.
Experience performing OT vulnerability assessments in critical infrastructure environments.
Hands-on experience with OT security tools (Nozomi Networks, Claroty, Tenable.ot).
Experience IT vulnerability assessments (Nessus Pro, Qualys, Rapid7).
Knowledge of industrial protocols (Modbus, DNP3, OPC-UA, Ethernet/IP, Profinet).
Strong report writing and client-facing communication skills.

Responsibilities

Perform onsite OT Vulnerability Assessments across industrial environments.
Conduct vulnerability scanning and risk assessments for OT and IT assets.
Utilize OT security tools such as Nozomi, Claroty, Tenable.ot, Microsoft Defender for IoT, etc.
Perform IT vulnerability assessments using Nessus Pro, Qualys, Rapid7, etc.
Review industrial networks, PLCs, SCADA, HMIs, engineering workstations, servers, and network devices.
Prepare assessment reports, risk ratings, remediation recommendations, and executive summaries.
Present findings and recommendations to client stakeholders and management teams.
Coordinate with plant operations, automation, and IT teams during assessments.