OT Cybersecurity Specialist

Puffer-Sweiven•Stafford, TX

About The Position

Puffer-Sweiven is seeking an OT Cybersecurity Specialist to lead deployment and integration of cybersecurity and platform integration solutions in operational technology environments. The role covers threat monitoring, secure remote access, endpoint protection, network monitoring, and data integration platforms. It also supports incident response, security architecture reviews, risk assessments, network security, compliance documentation, and cybersecurity integration throughout automation projects. The specialist works with customers, project teams, OEMs, and technology partners, providing technical recommendations and operational guidance. The role also supports factory and site acceptance testing, commissioning, and startup, and produces technical documentation, standards, and customer-facing reports.

Requirements

  • Bachelor’s degree in Engineering, Information Technology, Cybersecurity, or a related field, or equivalent experience.
  • At least 5 years of experience in OT cybersecurity and/or industrial networking.
  • Strong understanding of industrial control systems (ICS) and OT environments.
  • Hands-on experience with industrial networking technologies, including managed switches, firewalls, and routers.
  • Hands-on deployment experience with OT threat monitoring solutions, such as Dragos, Nozomi, or Claroty.
  • Knowledge of industrial protocols such as EtherNet/IP, Modbus TCP, PROFINET, and OPC UA.
  • Strong troubleshooting, analytical, and problem-solving skills.
  • Ability to communicate effectively with operations, engineering, and IT stakeholders.

Nice To Haves

  • Experience in oil and gas, chemicals, refining, power, or manufacturing industries.
  • Experience with Emerson, Honeywell, and Rockwell systems.
  • Cybersecurity certifications such as GICSP, GRID, CISSP, or ISA/IEC 62443.
  • Experience with secure remote access solutions.

Responsibilities

  • Lead on-site deployment and integration of OT cybersecurity and platform integration solutions, including threat monitoring, secure remote access, endpoint protection, network monitoring, and data integration platforms.
  • Identify critical logging and monitoring sources and develop monitoring strategies, baselines, alert tuning, correlation rules, and escalation paths.
  • Lead security event analysis and investigate alerts and anomalies.
  • Support OT incident response efforts.
  • Perform security architecture reviews and risk assessments of DCS, PLC, SIS, and supporting infrastructure.
  • Develop OT security procedures, standards, and playbooks; support management of change (MOC).
  • Support network segmentation, secure remote access, firewall configuration, and access control in industrial environments.
  • Assist customers with cybersecurity documentation, policies, and procedures for compliance and audits.
  • Collaborate with project teams to integrate cybersecurity into automation project lifecycle phases.
  • Serve as a technical advisor to customers, providing recommendations, best practices, and operational guidance.
  • Support FAT, SAT, commissioning, and startup activities related to OT cybersecurity.
  • Work with OEM and technology partners to deliver integrated solutions.
  • Develop and deliver technical documentation, standards, and customer-facing reports.
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