Summer trainee, New Nuclear Regulatory Affairs

Are you ready to power the future with a summer job at the heart of the energy industry? Apply now and join us for an impactful summer 2026!

About the role

We are looking for a Summer Trainee to join the Regulatory Affairs and Safety department of the New Nuclear business area. In this role, you will have an opportunity to be broadly involved in the development of Fortum’s New Nuclear initiatives by participating in and supporting the licensing efforts and assessments related to various light water reactor technologies in both Finland and Sweden. The position provides a possibility to learn more about nuclear regulatory requirements, ways of assessing compliance, and the overall development of a nuclear newbuild project.

As a Summer Trainee, New Nuclear Regulatory Affairs, your assignments may include:

• Analysing nuclear regulatory requirements in Finland and Sweden and their impact on plant designs

• Participating in developing ways to show compliance with the requirements and in assessing the acceptability of design solutions

• Contributing to the development of requirement management processes and methods

The exact focus areas and assignments will be determined based on your background, experience, and interests. The position is located at Fortum’s headquarters in Espoo, Finland.

About you

To be successful in this role, the following should resonate with you:

• At least three years of university studies in Engineering or Physics, e.g., Energy Technology, Nuclear Engineering, or Mechanical Engineering

• Outgoing personality with good communication and language skills; English (written and oral) is a must

• Swedish language skills are considered an advantage, but not required

• Strong interpersonal characteristics and social skills; working with different stakeholders in a multicultural environment comes naturally

• Questioning attitude and desire to learn; effective problem identification and solution skills, with a strong sense of responsibility

We offer you

In this role, you get a first-row seat to participate and contribute to the development of a new nuclear project. You will learn about licensing of nuclear power plants in two countries, different reactor technologies, and work with many very experienced and professional colleagues.

We value our summer trainees and want to make your experience rewarding. During the summer you will:

• Receive an introduction to your tasks and be supported by your team. As part of the Regulatory Affairs and Safety team, you get to work with experts from many different technical disciplines within Fortum, from technology vendors, and from nuclear safety regulators. We are committed to building a team where everyone feels valued. Mutual trust, believing in one another, and taking care of everyone’s well-being help us achieve better results

• Work with interesting and diverse tasks with real responsibility. Your tasks will contribute to forming an overall understanding of regulatory requirements and how to comply with them. Management of regulatory requirements and licensing can make or break a new nuclear project

• Enjoy a hybrid work model with flexible working hours, allowing you to balance remote and in-office work

• Learn about Fortum, the energy industry, and the sustainable solutions we are developing

• Network with other trainees

• Gain valuable experience that can lead to a career with us. Many trainees continue after the summer, working part-time while continuing studies or as thesis workers

Read more

Read more about Summer Energy, our recruitment process, and previous summer trainees’ experiences here:
Energetic summer job at Fortum | Fortum 

Interested?

If this sounds like the perfect opportunity for you, please submit your application, including your CV and cover letter, through our recruitment system by 8 February 2026.

We’d love to hear your own voice in the cover letter — tell us who you are and what you would bring to the team. Please avoid AI-generated content so we can get to know you personally.

We will begin reviewing applications and interviewing candidates already during the application period, so please apply as soon as possible.

Malla Jääskeläinen
Director, Regulatory Affairs, New Nuclear
📧 malla.jaaskelainen@fortum.com
📞 +358407497760 (please agree on a suitable call time via email)

We encourage you to apply as soon as possible! We will start reviewing applications already during the application period. The job ad will close as soon as the right candidate is found.

The summer traineeship is planned to take place between 4 May and 31 August 2026.

To be selected for the position, the applicant must go through background clearance and a health examination including drug testing.

We are Fortum

Fortum is a Nordic energy company. Our purpose is to power a world where people, businesses, and nature thrive together. Our power generation has one of the lowest specific CO₂ emissions in Europe, and our actions are guided by ambitious environmental targets. We generate and deliver energy reliably and help industries decarbonise their processes and grow. Our core operations in the Nordics comprise efficient, low-carbon power generation from renewable energy sources and nuclear sources, as well as reliable supply of electricity and district heat to private and business customers.