OT Security Expert (w/m/d)

Our Mission

Quest One is a global pioneer in PEM electrolysis. Our goal is clear: we want to make a decisive contribution to reducing greenhouse gases with our electrolyzers. We have grown since our beginnings as a research project in 1997 – today we are a subsidiary of Everllence with around 500 employees at three locations worldwide.

Our mission: Drive climate protection and actively shape the energy transition. Are you ready to accompany us on this path?

Our goal: Save 1% of global greenhouse gases by 2050. Quest One.

Your Tasks

• Development, implementation, and maintenance of security concepts for OT environments (Industrial Control Systems, SCADA, PLCs).
• Ensuring compliance with relevant standards and legal requirements (e.g., Cyber Resilience Act, EU Data Act, IEC 62443, Machinery Regulation, and NIS 2).
• Conducting risk analyses and threat assessments for OT systems and advising on the selection and integration of secure components and architectures.
• Advising on the selection and integration of secure components and architectures.
• Creating security policies, training employees in OT security, and collaborating closely with internal teams and external partners.

What you bring

• Completed degree in Computer Science, Electrical Engineering, Automation Technology, or comparable qualification.
• Several years of experience in OT Security, Industrial Cybersecurity, or related fields.
• In-depth knowledge of the following standards and laws: IEC 62443 (esp. 3-3 and 4-2), Cyber Resilience Act, EU Data Act, Machinery Regulation, and NIS 2.
• Experience with risk and vulnerability analyses in OT environments.
• Knowledge of network architectures, firewalls, IDS/IPS for industrial systems.
• Strong communication skills and ability for interdisciplinary collaboration.

Why Quest One?

• OWNERSHIP – We grow together with Quest One and you can actively take responsibility.
• ONE TEAM – A strong team that sticks together and shapes the future.
• LEARNING – Personal growth is our focus – with numerous development opportunities.

Your Benefits

• Flexible working for good work-life balance.