OT Security Engineer

Vattenfall is a European energy company with approximately employees. For more than 100 years we have electrified industries, supplied energy to people's homes and modernized our way of living through innovation and cooperation. We are looking for talented individuals who, in addition to their passion for their own role, also have strong team spirit and want to contribute to supporting a meaningful corporate mission. 

We are looking for an OT security Engineer who wants to work more in the line of adviser and compliance within the field of OT security. The OT Security Engineer is responsible for overseeing activities to establish secure OT environment. He/she collaborates with cybersecurity teams, system owners, operational personnel to implement secure system architectures, mitigates cyber threats and vulnerabilities and conducts routine reviews of OT systems related to security standards and regulations. Additionally, he/she maintains security documentation, procedures support to setup relevant security controls. He/she is familiar with modern security technologies such as firewall, log management (SIEM), IDS, endpoint protection, access control systems, and other related security technologies within the OT environment. Ideally familiar with security frameworks such as IEC62443, ISO 27001 or similar.

Manage quality and continuous improvement of OT security architecture:

• Perform testing and assessment of new cybersecurity technologies and controls
• Recommend security products, services and procedures to improve OT system architecture designs
• Provide inputs to OT security product roadmaps

Support and sparring partner in developing OT security architecture / Support the OT security system integration:

• Collaborate with architects to shape security controls, systems, remote access and architecture for the organisation's OT infrastructure according to specified requirements
• Implement IT/OT controls to safeguard the OT environment
• Through guidance and control, to ensure our IT/OT setup follow our zoning model (based on the Purdue Model)

Support and enable our OT teams to improve and maintain cybersecurity posture of OT systems:

• Collaborate with cybersecurity and operational teams to implement vulnerability mitigations, patches, or compensating controls on OT systems.
• Identify potential risks (operational, safety, business etc.).
• Through guidance and a set of controls, ensure the OT operations are compliant with our policies and standard.

Respond to OT security incidents:

• Provide inputs to support the fulfilment of incident response processes
• Partner with other stakeholders to shape mitigation strategies for cybersecurity threats

Location  

Kolding, Amsterdam, Stockholm or Hamburg.

As a key member of our cybersecurity team, you'll bring a robust blend of technical expertise and soft skills to help us safeguard our digital and operational environments. Your role will span across a wide range of responsibilities, from verifying controls, to overseeing asset inventories and supporting the incident response.

You'll play a vital role in our cyber incident response efforts, ensuring swift and effective management of threats. Your deep understanding of communication networks and security—combined with your ability to design and maintain segmented, resilient infrastructures—will be essential in protecting both IT and OT environments.

You'll lead initiatives in security governance, risk assessment, and vulnerability management. You'll evaluate OT products and solutions for security compliance, contribute to the design of secure architectures, and help us maintain a strong cybersecurity posture across our supply chain.

Your knowledge of international standards such as ISO27001 and IEC62443, along with familiarity with regulations like KRITIS 2.0, NIS2, and the Swedish Protective Act, will ensure our practices remain compliant and forward-thinking. Holding certifications such as CISSP, GICSP, IEC62443 Cybersecurity Expert, or Security+, as well as network credentials like CCNA or CCNP, will further demonstrate your commitment to excellence.

Beyond technical skills, we value your ability to communicate clearly, think critically, and solve problems creatively. You'll thrive in a collaborative environment where teamwork, inclusivity, and transdisciplinary thinking are key. Your sense-making abilities and computational thinking will help you navigate complexity, while your innovative mindset will drive continuous improvement.

Our offer 

Good remuneration, a challenging and international work environment, and the possibility to work with some of the best in the field. You will be working in interdisciplinary teams and you can always count on support from committed colleagues. We offer attractive employment conditions and opportunities for personal and professional development. 

More Information 

We welcome your application in English, no later than, October 31st 2025. We kindly request that you do not send applications by any means other than via our website and that you refrain from submitting a cover letter with your application. You apply quickly and easily by answering screening questions and attaching your CV.

For more information about the recruitment process you are welcome to contact our recruiter [email protected] 

At Vattenfall we are convinced that diversity contributes to build a more profitable and attractive company and we strive to be good role model regarding diversity. Vattenfall works actively for all employees to have the same opportunities and rights regardless of gender, ethnicity, age, transgender identity or expression, religion or other belief, disability or sexual orientation. 

We look forward to receiving your application