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ICS Security Engineer
Houston, Texas  |  Onsite
Direct Hire Position
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Applied on September 23, 2023
Job Id #64067 Posted August 16, 2023

Job Description:
We are currently seeking a self-motivated ICS Security Engineer to join the Technologies team. The successful candidate will work directly with technical leaders across the digital products group in the selection, deployment, and validation of cybersecurity controls to reduce exposure and ensure security and compliance requirements are maintained. The position also entails analyzing our product groups' network designs and software implementations as specified for our customer's requirements. This position will ensure that controls are relevant, properly documented, and maintained for associated products and services.

  • Collaborate internally and externally with business organizations to create solutions meeting our customer needs while minimizing Cyber security risks.
  • Guide technical leaders and business functions on OT network architecture, Compliance, and security-related matters.
  • Develop, document, and execute cybersecurity execution plans and schedules.
  • Triage and address security alerts reported by OT security systems
  • Continually develop OT vulnerability and remediation capability to drive faster patching and mitigation cycles
  • Evaluate and make recommendations to continuously improve the cybersecurity posture of digital products.
  • Analyze network designs and software implementation
  • Proactively identify risks and active threats to the OT systems, and applications
  • Perform incident response tasks including evidence preservation, forensics, and malware/exploit analysis
  • Participate in developing and implementing new products to ensure the design and functionality required to support security and compliance.
  • Develop and maintain cyber security technical documentation and guidelines.
  • Conduct OT security workshops and awareness training sessions as required.
  • Perform other work-related tasks as assigned.
  • Comply with all Company and HSE policies and procedures.

  • Bachelor's degree in Information Security (IS) or Information Assurance (IA) or related field. Master's degree a plus.
  • Security or OT-related certifications are strongly desired. CISSP, CISA, CISM, CRISC, and/or other information security-related certifications also a plus.
  • 3 years of work experience in information security or compliance frameworks.
  • Knowledge of design, deployment, and assessment of DCS/SCADA systems.
  • Experience with PLCs (Allen Bradley, Siemens, Wago), Embedded Windows, Embedded Linux, and RTOS control systems.
  • Experience with industrial network protocols such as Modbus, PROFINET, OPC, EtherCAT.
  • Experience with Windows Servers, Linux/UNIX, enterprise anti-virus, endpoint security, application whitelisting technologies, SIEM, logging configurations, IDS/IPS, authentication methods, TCP/IP, packet capture, and analysis
  • Familiar with OT/ICS cybersecurity relevant accreditation such as ISA/IEC 62443, NIST
  • Familiar with IT-related ISO/IEC 27000, OWASP top 10, CSA, and DoD Risk Frameworks.
  • Knowledge of network infrastructure, including routers, switches, firewalls, and the associated network protocols and concepts.
  • Experience in organizing or leading the security and risk assessment will be preferred
  • Demonstrated ability to apply IT-related knowledge and experience in product compliance issues.
  • Ability to communicate effectively with various levels of technical expertise or non-expertise (written, verbal, presentation skills).
  • Organized and detail-oriented, able to work well under deadlines in a changing environment and complete multiple projects effectively and concurrently.

Horizontal is proud to be an Equal Opportunity and Affirmative Action Employer. We seek to provide employment opportunities to talented, qualified candidates regardless of race, color, sex/gender including gender identity and/or expression, national origin, religion, sexual orientation, disability, marital status, citizen status, veteran status, or any other protected classification under federal, state or local law.

In addition, Horizontal will provide reasonable accommodations for qualified individuals with disabilities. If you need to request a reasonable accommodation in order to complete the application or interview process, please contact

All applicants applying must be legally authorized to work in the country of employment.


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Horizontal is proud to be an Equal Employment Opportunity/Affirmative Action Employer providing a drug-free workplace.


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