Operational Technology Security Expert / Project Manager

Project overview

RET is looking for an experienced Operational Technology Security Expert / Project Manager who will play a central role in implementing the OT Security Roadmap (ROTS). From the Asset Management department, you will be the connecting link between technology, cybersecurity, and the organization. You will contribute to strengthening digital resilience and ensuring the safety, availability, and reliability of critical operational systems within RET.

The assignment focuses on translating the existing OT security roadmap into a concrete implementation plan and realizing prioritized measures. Additionally, you will be responsible for the substantive direction of OT security projects, increasing security awareness, and further professionalizing OT security governance. You will work closely with asset managers, project managers, maintenance engineers, technical specialists, and maintenance specialists within the Technology directorate. You will also regularly coordinate with the Security Office, consisting of the CISO and OT and IT security officers.

You will also play an important role in the collaboration with HTM, with whom RET jointly realizes parts of the OT security roadmap.

About the department

The Asset Management department within RET is responsible for the strategic and tactical management of all infrastructure and vehicle assets, including the associated Operational Technology (OT). Within this department, work is done to ensure the safety, availability, and reliability of critical systems that are essential for the daily operation of public transport. The combination of operational continuity, industrial automation, and cybersecurity makes OT security an important part of asset management within RET.

Result of the assignment

The assignment focuses on further implementing the OT Security Roadmap and structurally strengthening digital resilience within the technical organization. The following results must be achieved:

Activities

Implementation of OT Security Roadmap

OT security and technical advice

Project management and stakeholder management

OT security governance and awareness

Collaboration with HTM

Job requirements

The candidate possesses:

Competencies

Additional information

About RET

RET is responsible for a significant part of public transport in Rotterdam and its surroundings. The organization continuously works on safe, reliable, and future-proof transport facilities. Within this assignment, you will have the opportunity to make a direct contribution to strengthening the cybersecurity of critical operational systems. You will work in a socially relevant environment where technical innovation, operational continuity, and digital resilience converge.

• A concrete implementation plan for the OT Security Roadmap (ROTS), based on previously conducted desk research and including prioritization, planning, dependencies, and required resources.
• Implementation of the prioritized roadmap components within the agreed frameworks of time, budget, and scope.
• Substantive direction of OT security projects, including monitoring progress, risks, dependencies, and decision-making.
• Development and organization of activities aimed at increasing OT security awareness within the Technology directorate.
• Support for management in further establishing OT security governance and organizational assurance of OT security.
• Assurance of collaboration and coordination with HTM on joint roadmap components, including the establishment of working agreements.
• Translate the existing OT Security Roadmap into a concrete and executable implementation plan.
• Analyze the previously conducted desk research and translate findings into priorities and actions.
• Determine dependencies, required capacity, and resources.
• Coordinate and guide the implementation of prioritized OT security measures.
• Monitor planning, budget, scope, and progress.
• Provide substantive advice on OT security issues within infrastructure and vehicle-related systems.
• Assess security issues within industrial automation environments, including PLC and SCADA systems.
• Translate technical security risks into concrete and executable measures.
• Apply relevant cybersecurity legislation and security standards, including IEC 62443, the Cybersecurity Act, and the Critical Entities Resilience Act.
• Coordinate with technical specialists, asset managers, maintenance specialists, and the Security Office.
• Substantively manage and coordinate OT security projects.
• Monitor progress, risks, dependencies, and decision-making.
• Identify bottlenecks and organize appropriate solutions.
• Connect technical, organizational, and security interests.
• Coordinate with operational, tactical, and strategic stakeholders.
• Create support for necessary security measures and changes.
• Support management in further establishing OT security governance.
• Advise on organizational responsibilities, collaboration, and assurance of OT security.
• Develop and organize activities that increase OT security awareness within the Technology directorate.
• Stimulate collaboration between Asset Management, Technology, and the Security Office.
• Contribute to a structural and organization-wide approach to OT security.
• Coordinate and collaborate with HTM on joint components of the OT security roadmap.
• Coordinate joint activities and dependencies.
• Document working agreements and responsibilities.
• Monitor the progress and coherence of joint initiatives.
• Demonstrable WO (higher professional education) work and thinking level and at least 5 years of experience in OT cybersecurity.
• Knowledge of OT security architectures and industrial automation systems, including PLCs, SCADA systems, and similar OT environments.
• In-depth knowledge of IEC 62443, the Cybersecurity Act, and the Critical Entities Resilience Act.
• At least 3 years of work experience within RET or a comparable Dutch public transport organization, such as HTM, GVB, NS, or ProRail, in an OT security role.
• Experience with project-based work according to methodologies such as PRINCE2, Agile, and/or Scrum.
• Availability for the entire assignment period and flexibility in the number of hours deployable per week.
• Analytical: you possess strong analytical skills and can understand complex OT security issues.
• Solution-oriented: you translate technical and organizational security issues into concrete and executable solutions.
• Stakeholder management: you easily switch between operational, tactical, and strategic stakeholders.
• Proactive: you take initiative, identify improvement opportunities, and effectively initiate changes.
• Persuasiveness: you are a strong conversational partner and can create support within complex organizations.
• Connecting: you collaborate constructively and bring together people, processes, technology, and security.
• Results-oriented: you monitor the progress of implementation trajectories and steer towards concrete results.
• The selection interviews will take place on Friday, November 6, 2026.

Project details

• Start: 2026-11-15T23:00:00
• Location: Rotterdam Zuid-Holland, NL
• Languages: Dutch