OT Security Engineer / Platform Engineer

Location: Urbana, Maryland, USA (Onsite)

Employment Type: Full-time | Permanent

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The Role

NETbuilder is looking for an experienced OT Security Engineer / Platform Engineer to support a newly awarded U.S. government cybersecurity project based in Urbana, Maryland.

You will play a hands-on role in securing operational technology (OT) environments, focusing on asset discovery, network monitoring, security platform integration, and technical risk assessment.

As this is a new project, you will also help establish the team's cybersecurity governance, processes, and ways of working, working closely with engineers, security specialists, and government stakeholders.

What You Will Do

• Perform passive asset discovery across OT/ICS environments, ensuring minimal disruption to operations.
• Develop and maintain network architecture diagrams, asset inventories, and data-flow documentation.
• Deploy, configure, and integrate OT security monitoring platforms such as Claroty, Dragos, or Nozomi Networks.
• Integrate OT monitoring solutions with network infrastructure, SIEM, and other cybersecurity tools.
• Analyze industrial network traffic using tools such as Wireshark to identify anomalies and potential security threats.
• Support network segmentation and security improvements in line with the Purdue model.
• Conduct technical security assessments and provide evidence to support Risk Management Framework (RMF) requirements.
• Identify vulnerabilities and recommend remediation measures while considering operational safety and system availability.
• Help establish security governance, technical processes, and best practices for the newly formed project team.
• Collaborate with technical teams and government stakeholders to support project delivery.

What You Bring

• 2-5 years of relevant experience in network engineering, cybersecurity, or OT/ICS security, including practical experience in industrial environments.
• Hands-on experience with OT asset discovery and monitoring platforms such as Claroty, Dragos, or Nozomi Networks.
• Strong understanding of industrial control systems (ICS), industrial network protocols, and OT security principles.
• Knowledge of network segmentation, the Purdue model, and industrial network architecture.
• Experience with packet capture and network traffic analysis tools such as Wireshark.
• Ability to create clear technical documentation, including network diagrams and data-flow maps.
• Familiarity with cybersecurity risk assessments, vulnerability management, and remediation activities.
• Strong problem-solving, communication, and collaboration skills.
• Ability to work onsite in Urbana, Maryland
• Eligibility to work in the United States.

Nice to Have

• Relevant certifications such as GICSP, Security+, CCNA, GIAC GRID, or GCIP.
• Active U.S. security clearance or eligibility to obtain one.
• Experience supporting RMF compliance and security authorization activities.
• Familiarity with SIEM integration and OT security telemetry.
• Previous experience working on U.S. federal government cybersecurity projects.
• Experience helping establish cybersecurity processes and governance within new teams. xhyhwjd

About NETbuilder

NETbuilder is a specialist technology partner founded in 1999. We help enterprises and mid-market organizations lead technology transformation through specialist consulting, managed services, and enterprise insourcing across security, ServiceNow, observability, and agentic automation.

Work Location: Onsite – Urbana, Maryland, USA.