Vacant job

Company Description

Business Unit (BU) Vattenfall Power Solutions is a business unit of approximately 700 people within Business Area (BA) Vattenfall Generation. We train personnel in the Swedish nuclear power sector, deliver nuclear fuel to Vattenfall's nuclear power plants, develop and execute projects and assignments, and provide internal technical specialist services for all of Vattenfall's operations, corporate staff, and stakeholders. This involves activities such as developing and providing training, project management and support, analysis leadership and investigations, product development, and nuclear safety and containment safety assignments. The focus within the Vattenfall Power Solutions business unit is to develop our capabilities in project management and selected technical key disciplines. We actively work on continuous improvement initiatives and the development of our models, where our work and expertise create significant value for Vattenfall and its investments.

About the Role

Do you have an eye for numbers, a curiosity for smart solutions, and a heart that beats for sustainable energy? Then you might be exactly who we are looking for – whether you are at the start of your career or have a few years of experience under your belt.

Vattenfall Power Solutions is seeking Nuclear Calculation Engineers for our headquarters in Solna. As a Calculation Engineer here, you play a vital role in keeping our nuclear power plants running. Your work focuses on ensuring that our reactors receive safe and efficient nuclear fuel.

Here, you will have the opportunity to learn even more about reactor physics and develop into a specialist. We offer a clear development plan, created together with experienced experts, to help you grow in your career.

We believe in freedom with responsibility. This means you can plan your own work, as long as you meet set deadlines, collaborate with the team, and are clear about what you are doing. Join our team and help create a secure and sustainable energy future!

About Our Unit: Reactor Physics

We work with advanced reactor physics for both pressurized water reactors (PWR) and boiling water reactors (BWR). Our assignment is exciting and important; we:

• Develop core and fuel designs used in Vattenfall's reactors at Ringhals and Forsmark. This involves creating core designs for annual refueling outages in collaboration with safety analysis experts. We also review new fuel designs to ensure they are both safe and efficient.
• Collaborate with Svensk Kärnbränslehantering AB (SKB) and perform calculations for the safe transport of spent nuclear fuel.
• Perform radiation calculations for Ringhals and Forsmark, which is crucial for protecting both personnel and the surrounding environment.
• Perform calculations for various types of nuclear fuel, both new and existing, to ensure we always use the safest and most efficient fuel.

With our expertise and meticulous analysis, we help make Sweden's nuclear power plants both safer and more efficient. We work closely with our partners to develop innovative solutions and meet the challenges of the future in nuclear power.

As a Calculation Engineer, you will work with

• Optimization and analysis of nuclear fuel and core design for Vattenfall's reactors.
• Validation of calculation codes and models used to create safe and efficient core designs.
• Development of methods and analyses within reactor physics and criticality calculations.
• Advanced analyses to provide technical support in questions regarding reactor physics, both internally and to our partners.

You will collaborate closely with our colleagues at Forsmark and Ringhals, as well as with suppliers of nuclear fuel and calculation software.

We know that our employees are the key to our success, and your development is important to us. Therefore, we will always encourage you to use your knowledge and provide opportunities for growth through new challenges, training, and knowledge transfer.

Requirements

Whether you are new to the working life or have previous experience with calculation and optimization issues, we are looking for you who have a strong interest in sustainable electricity production and want to continue developing with us.

• You are a Civil Engineer or have a higher academic degree in science or engineering. A specialization in Technical Physics, Energy Technology, or Physics is an advantage.
• You have good knowledge of Swedish and English.
• Knowledge of Machine Learning/AI combined with nuclear and/or reactor physics is an advantage.
• A valid driver's license (Category B) is an advantage.

You thrive in collaboration and value teamwork where you create engagement and involvement. You are curious, enjoy learning new things, and are happy to share your knowledge.

Your stability and ability to prioritize make you a reliable and solution-focused colleague. You are proactive and turn ideas into action. With your proactive attitude, you contribute to the success of both the team and the company.

Additional Information

In addition to helping shape the smart energy society of the future, we offer you a developing and varied job with many points of contact. At Vattenfall, it is important that work and private life have a good balance, so we offer flexibility in work and the possibility to work from home when needed. We also offer a range of other employee benefits, such as reduced working hours, favorable occupational pension agreements, parental leave supplements, and more. Read more about our benefits here.

Location: Solna. Travel is a natural part of the work, but we actively work with technical aids to reduce this.

Contact Persons

For more information about the position, you are welcome to contact the hiring manager Malin Löwe, 076-139 87 62. For questions regarding the recruitment process, please contact the recruiter Jessica Dinkel, [email protected].

Union Representatives are Gustaf Treiber (Akademikerna), Jan Stigbert (Unionen), Philip Carendi (Ledarna), and Ingemar Eriksson (SEKO). All can be reached via Vattenfall's switchboard, 08-739 50 00.

Apply by June 21, 2026. We do not accept cover letters. You apply quickly and easily by answering selection questions and attaching your CV. We only accept applications via our website.