OT Network Security Specialist

hace 4 días

Perímetro Urbano Medellín, Colombia Unisys A tiempo completo
Job Summary

We are seeking a highly skilled OT Network Security Specialist to join our team at Unisys. As a key member of our cybersecurity team, you will be responsible for securing our operational technology networks and protecting our critical infrastructure.

Key Responsibilities
  • OT Network Monitoring and Analysis:
    • Monitor and analyze OT network traffic to identify potential security threats and vulnerabilities.
    • Utilize specialized tools to detect anomalies in industrial protocols and communications within OT environments.
    • Investigate and respond to security incidents in OT networks, ensuring minimal disruption to critical infrastructure.
  • Protocol Expertise and Threat Detection:
    • Leverage in-depth knowledge of industrial protocols (e.g., Modbus, DNP3, IEC to analyze network traffic and detect potential threats.
    • Develop and maintain detection rules and signatures specific to OT environments to enhance threat detection capabilities.
    • Work closely with OT engineers to understand the operational impact of security measures and ensure alignment with safety protocols.
  • Security Assessments and Vulnerability Management:
    • Conduct regular security assessments of OT networks to identify vulnerabilities and recommend remediation actions.
    • Implement and manage security controls within OT environments to mitigate risks, ensuring compliance with industry standards.
    • Collaborate with cross-functional teams to design and implement security architectures that protect OT systems.
  • Documentation and Reporting:
    • Document security incidents, analysis processes, and findings in a clear and detailed manner.
    • Provide regular reports to management and stakeholders on the security posture of OT networks, including any identified risks or incidents.
    • Maintain up-to-date records of OT network configurations, security controls, and threat detection mechanisms.
  • Collaboration and Continuous Improvement:
    • Collaborate with IT and OT teams to ensure seamless integration of cybersecurity measures across environments.
    • Stay current with the latest threats and vulnerabilities related to OT networks and industrial control systems.
    • Participate in ongoing training and professional development to enhance OT cybersecurity expertise.
    Requirements
    • Must Have Skills:
      • OT Network Security (2+ years): Proven experience in securing operational technology networks, with a focus on critical infrastructure such as electrical grids or water systems.
      • Industrial Protocol Expertise (2+ years): In-depth knowledge of industrial protocols (e.g., Modbus, DNP3, IEC and experience in monitoring and analyzing protocol traffic.
      • Incident Response in OT Environments (2+ years): Experience in responding to and mitigating cybersecurity incidents within OT networks, minimizing impact on operations.
      • Technical Documentation (3+ years): Proficiency in documenting technical processes, incident reports, and security assessments for OT environments.
    • Nice to Have: (Please indicate no more than 5 skills. If candidates do not have these skills would not be a reason for disqualifying. Be as concrete as possible.)
      • Certifications (e.g., GICSP, CISM, CISSP) (1+ years): Relevant certifications that demonstrate advanced knowledge in OT cybersecurity.
      • Experience with SCADA Systems (1+ years): Familiarity with SCADA systems and their role in OT environments, including security best practices.
      • Knowledge of Regulatory Compliance (1+ years): Understanding of regulatory requirements for OT security, such as NERC CIP, and how to ensure compliance.
      • Scripting and Automation (1+ years): Skills in scripting languages (e.g., Python, PowerShell) to automate security tasks within OT environments.
      • Advanced Threat Intelligence (1+ years): Experience in applying threat intelligence to protect OT networks from targeted attacks.
      • Vulnerability Management (3+ years): Strong ability to identify, assess, and remediate vulnerabilities within OT networks and industrial control systems.

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