OT Network Security

Key Responsibilities:

• Conduct information-gathering workshops, stakeholder interviews, and coordinate system access for assessment activities
• Collect and analyze network traffic data (PCAP files) to understand and map current OT network architecture
• Perform OT network scanning, asset discovery, and vulnerability identification using OT security monitoring tools
• Define and validate assessment scope by identifying OT assets and reconciling existing asset inventories
• Conduct risk and gap assessments aligned with industry standards and frameworks such as IEC 62443 and NIST CSF
• Evaluate current OT security posture and assign risk ratings based on identified vulnerabilities and gaps
• Develop phased OT Security Roadmaps with prioritized short-, medium-, and long-term recommendations
• Prepare detailed remediation plans and provide recommendations for OT security architecture improvements
• Document findings, assessment outcomes, and technical recommendations in clear and professional reports
• Collaborate with internal teams and stakeholders to support project delivery and security improvement initiatives

Key Requirements:

• Minimum 2–7 years of experience in OT Security, Cybersecurity, Network Security, or related domains
• Hands-on experience working in OT/ICS/SCADA environments
• Strong understanding of OT network architecture, industrial protocols, and cybersecurity principles
• Experience in asset discovery, vulnerability assessment, and network traffic analysis
• Familiarity with OT security frameworks and standards such as IEC 62443 and NIST CSF
• Experience with OT security tools such as Nozomi Guardian or equivalent platforms is an advantage
• Strong analytical, problem-solving, and documentation skills
• Good communication and stakeholder management abilities
• Ability to work independently and collaboratively in project environments

Preferred Qualifications:

• Relevant cybersecurity certifications are an advantage (e.g., GICSP, CISSP, CEH, CompTIA Security+)
• Experience in security assessment, risk management, or OT security consulting projects
• Knowledge of OT security architecture and segmentation best practices