OT Cybersecurity Specialist

Puffer-Sweiven; Corpus Christi (TX); On-site; USD 90,000 - 130,000; Full time

Job summary

Puffer-Sweiven is seeking an experienced OT cybersecurity professional to lead on-site deployment and integration of cybersecurity and platform solutions for process control environments.

The role requires 5+ years in OT cybersecurity or industrial networking, hands-on experience with Dragos/Nozomi/Claroty, and strong knowledge of ICS protocols. Collaboration with operations, engineering, and IT teams is essential for successful FAT/SAT and commissioning.

Qualifications

• Bachelor's degree in Engineering, IT, Cybersecurity, or related field (or equivalent).
• 5+ years of experience in OT cybersecurity and/or industrial networking.
• Strong understanding of ICS and OT environments.
• Hands-on experience with industrial networking technologies (switches, firewalls, routers).
• Hands-on deployment experience of OT threat monitoring solutions (Dragos, Nozomi, Claroty).
• Knowledge of industrial protocols (EtherNet/IP, Modbus TCP, PROFINET, OPC UA).
• Strong troubleshooting and communication skills.

Responsibilities

• Lead on-site deployment and integration of OT cybersecurity and platform integration solutions.
• Identify logging sources; develop monitoring strategies, baselines, alerts, 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 MOC.
• Support network segmentation, secure remote access, firewall configuration, and access control in industrial environments.
• Assist customers with cybersecurity documentation, policies, and procedures for audits.

Skills

OT cybersecurity

Industrial networking

Stakeholder communication

Analytical problem solving

Education

Bachelor's degree in Engineering/IT/Cybersecurity

Tools

Dragos

Nozomi

Claroty

Job description

Company Description:

For over 80 years, Puffer-Sweiven has set the standard in equipment and services for process control, automation, safety, and reliability. We help process-intensive facilities run more efficiently and safely by delivering quality products, technical support, and knowledgeable staff to implement the needed process solutions — with the goal of exceeding customer expectations. Our dedication brings the most advanced products and services to our customers throughout the Central and Gulf Coast regions of Texas.

Specialties:

• Process Control & Safety Systems
• Control Valves & Regulators
• Isolation Valves & Actuation
• Oil & Gas Automation
• Reliability Solutions & Services
• Pressure Management
• Specialty Pumps & Rotating Equipment
• Instrumentation
• Maintenance & Repair Services

Duties and Responsibilities:

OT Cybersecurity

• 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 corresponding 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 MOC.
• Support network segmentation, secure remote access, firewall configuration, and access control in industrial environments.
• Assist customers with cybersecurity documentation, policies, and procedures to support compliance and audits.

Project & Customer Support

• 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 closely with OEM and technology partners to deliver robust integrated solutions.
• Develop and deliver technical documentation, standards, and customer-facing reports.

Required Qualifications

• Bachelor’s degree in Engineering, Information Technology, Cybersecurity, or a related field (or equivalent experience).
• 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 of OT threat monitoring solutions (e.g. Dragos, Nozomi, Claroty).
• Knowledge of industrial protocols such as EtherNet/IP, Modbus TCP, PROFINET, OPC UA, and similar.
• Strong troubleshooting, analytical, and problem-solving skills.
• Ability to communicate effectively with operations, engineering, and IT stakeholders.

Preferred Qualifications

• Experience in oil & 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.