Overview
The OT Security Engineer will be responsible for implementing and maintaining security controls across operational technology (OT) and industrial control system (ICS) environments for critical oil and gas infrastructure. This role requires the application of security standards specifically IEC 62443 into practical technical controls, while collaborating with operations teams to ensure systems are secure yet functional in live settings.
Responsibilities
- Implement and maintain security controls for OT and ICS environments.
- Apply IEC 62443 standards to develop deployed technical controls.
- Manage network segmentation and secure IT/OT boundaries using the Purdue model.
- Secure SCADA systems and associated industrial components.
- Conduct threat modelling and vulnerability assessments.
- Collaborate with operations teams to support security design reviews.
- Reduce risk by actively engaging with stakeholders during security tasks.
Requirements
- Active security clearance in regulated or critical national infrastructure environments.
- Proven experience in cybersecurity with a focus on OT/ICS security.
- Practical knowledge of implementing IEC 62443 standards.
- Strong understanding of the Purdue model and industrial network segmentation.
- Hands-on experience in securing SCADA systems and industrial protocols.
- Ability to collaborate effectively with engineers and operations teams.
- Experience in the oil and gas or energy sector is desirable.