Company description

KSU, Kärnkraftsäkerhet och Utbildning AB, ensures the competence of the Swedish nuclear power plants' personnel through both theoretical education and practical training in full-scale simulators. The company is in a development phase and we see an exciting future to ensure competence for long-term and new nuclear power operations.

Operations are conducted from our head office in Nyköping and from our training facilities located close to the nuclear power plants in Forsmark, Oskarshamn and Ringhals. KSU, with about 180 employees, is co-owned by Forsmarks Kraftgrupp AB, OKG AB, Ringhals AB and is part of the Vattenfall Group.

You are stepping into an exciting time and have the opportunity to be an important cog in creating KSU's future to contribute to a fossil-free future and competence for the nuclear power of the future.

About the role

With over 50 years of experience, KSU is a key player in ensuring competence for both new and long-term nuclear power operations. Through customized training, simulation environments and innovative solutions, we meet the needs of the future.

Do you want to contribute to a fossil-free future and ensure competence for the nuclear power of the future? Kärnkraftsäkerhet och Utbildning AB (KSU) is now looking for a technically interested simulation engineer in power system modeling.

Who are we? In this position, you will belong to the Process Models group. We are responsible for developing and maintaining a large number of modeled systems in KSU's nuclear simulators. Depending on modernizations at the nuclear power plants, project activities are extensive. You are entering an exciting time and have the opportunity to be an important cog that contributes to a fossil-free future and competence for the future of nuclear power.

We offer you a mix of high technical content, learning and development. You will be part of a team of 11 people who have extensive experience in modeling nuclear power plant processes in thermodynamics, electric power, control and logic systems and accident simulations. We work independently and in internal teams, supporting each other when needed. With good working conditions and mutual trust, we offer you high flexibility and work-life balance.

Your tasks

As a Simulation Engineer, you will model advanced systems using various tools or software code, to make the simulators mimic real processes in nuclear power plants. This position focuses on real-time electrical dynamics simulation and can cover all systems in and around nuclear power plants from external grids, generators and entire systems down to the dwarf switch level.

In this role, you are responsible for adapting and further developing our simulators in line with changes in the nuclear power plants. You translate technical needs into concrete model changes in the simulator and ensure that these maintain high quality and functionality.

The work also includes:

• Maintenance and improvement of existing simulation models,
• Testing of systems, troubleshooting and remediation of reported errors,
• Documentation of the work,
• Participate in investigations and development of the department's working methods,
• Participate in projects or be responsible as a technical sub-project manager.

Requirements

We are looking for you who

• Have education in electrical engineering, electrical power or equivalent
• You master both Swedish and English in speech and writing
• Have a B-driving license

More advantageous is:

• Work experience from simulators and nuclear safety
• Experience working with sub-project management or project management
• Knowledge in performing design, construction and debugging of simple programs in for example C, C++, Fortran or similar in some type of development environment (Visual Studio, Delphi etc).
• Experience with real-time simulation and modeling tools

You have a genuine interest in technology and enjoy understanding and simplifying complex problems. You are curious, analytical and have a good understanding of data. You enjoy working both independently and with colleagues, taking responsibility for your own development and contributing to the common goals of the team. You plan and structure your work taking into account the big picture and how it affects others in the organization. You like to improve products and deliveries and are happy to share your knowledge to create value together.

Further information

Location: Nyköping

For further information about the position, you are welcome to contact recruiting manager Pierre Andersson Ankartun tel 070-318 47 31 or technical manager Sofia Klefbom tel 070-550 10 17.For questions about the recruitment process, please contact recruiter Ida Fågelqvist, 070-048 76 82

Union representatives for this position are: Lillian Christiansson, Lillian.Christiansson@ksu.se (Akademikerna), Johan Kjellberg, johan.kjellberg@ksu.se (Ledarna), Ingemar Eriksson, ingemar.eriksson@vattenfall.com (SEKO), Mikael Stenmark, msk@ksu.se (Unionen)

Please send your application no later than October 10, 2025. We do not accept personal letters in the application. You apply quickly and easily by answering selection questions and attaching your CV. We only accept applications via our website.

At Vattenfall, we value being active, positive, open and safety conscious. We are looking for employees who share our vision and can contribute to strengthening our corporate culture. We are convinced that diversity helps build a more profitable and appealing company and strive to be good role models when it comes to diversity. Vattenfall works actively to ensure that all employees have the same opportunities and rights regardless of age, ethnic or cultural background, gender, religion/belief, sexual orientation or disability.Read more about how we work with diversity and inclusion here.

Vattenfall is part of Sweden's critical infrastructure and our operations are subject to rules on security protection, nuclear non-proliferation and export control. Due to these rules, a check of the candidate is carried out for many of the positions in our operations before employment takes place. For those positions that lead to participation in security-sensitive activities or placement in a security class, this control means that security clearance is carried out in accordance with the Security Protection Act.