Senior Scientist, Modelling And Simulation Of Nuclear Power Plants

Are you interested in modelling and simulation focused R&D work in the field of nuclear energy, and looking for a new job opportunity in the field? Would you like to develop innovative technology with superb colleagues who are top experts in their field? Do you want to build an excellent science career and work at the interface of academy and industry? Are you enthusiastic about working with fascinating projects in the state-of-the-art research facilities? VTT might be just the place for you.

VTT is one of the leading applied research organisations in Europe. What unites us are curiosity, a passion for learning and a purpose: to solve the biggest challenges of our time and turn them into sustainable growth and well-being. Our cross-disciplinary community of over 2400 brilliant minds from 60 different nationalities focuses on creating impact through science-based innovation.Get to know us further by exploring VTT's tech & infra.

We are now looking for a Senior Scientist to join our Nuclear power plant analysis team.

As a Senior Scientist, your key goals are conducting impactful high-quality research and managing projects related to analysis of nuclear power plants with the help of modelling and simulation. In this position you will have an essential role in development of safe and efficient utilization of nuclear energy to provide carbon-free energy for the society.

Our team, Nuclear power plant analysis works on R&D related to analysing the behaviour of nuclear power plants by means of numerical simulation, to ensure their safety and efficient operation. At the centre of our operations is the Apros software, that is used for safety assessment, optimization and design of nuclear installations as well as other industrial systems. We are currently working with major renewal and enhancements to the software.

Read more about our research:

• www.apros.fi
• www.sane-euratom.eu

Your responsibilities as Senior Scientist:

• You’ll participate as key expert or project manager in research and developments projects focused on computational analysis of nuclear power plants, both from the points of view of safety assessment and operational efficiency
• You’ll use your deep understanding of and wide knowledge on nuclear technology, safety and regulation to assess and interpret simulation results, to derive impactful conclusions from the simulation studies
• You’ll participate in active role in ideation and preparation of domestic and international research projects on nuclear safety, including securing research funding
• You’ll actively disseminate your research results in reports, scientific, publications and conferences

Who we are looking for:

• You have a Doctoral or Master’s degree from a relevant branch of technology or science (e.g. nuclear, mechanical, automation or chemical engineering, or engineering/applied physics or mathematics)
• You have a firm understanding and knowledge on topics including nuclear safety, licensing of nuclear power plants, preparation of safety analysis reports, and nuclear regulation
• You have at least three years of experience in applying system-scale safety analysis codes (e.g. Apros, RELAP5, TRACE) in modelling and safety assessment of nuclear power plants
• You have experience in managing projects and delivering impactful high-quality results
• You express yourself clearly in English, both in writing and spoken, and are able to convey complex ideas, concepts and meaning to stakeholders of different backgrounds. Mastery of the Finnish language is not mandatory but beneficial.

As a person, we hope that you are:

• A goal-oriented individual, with analytic approach to problem solving and business mindset
• Capable of working in a flexible and independent manner, and collaborating with colleagues across different fields of science and technology. We appreciate curiosity, passion as well as the ability to take the long-term perspective and find beyond-the-obvious solutions

With VTT, you’ll enjoy: / What we offer you:

• Visionary work in technology. We offer positions at the cutting-edge of technology and engineering from next generation microelectronics and quantum technology to automation and robotics, energy systems and more. Our research agenda is dedicated to creating sustainable growth by solving systemic and technological challenges, so your work will go towards creating real, positive impact. Read more about our strategy – the path of exponential hope.
• Fascinating projects, excellent research environment. Our researchers get to work on a combination of cutting-edge academic research and applied customer projects, both locally and internationally. At VTT, you’ll have state-of-the-art research facilities at your disposal, such as Micronova, the Finnish research infrastructure for micro-, nano- and quantum technologies.
• Great career opportunities, superb colleagues. At VTT, excellence in research is a strategic priority. We offer long-term positions and stable career paths in top-level research. People tend to stay with us over 10 years since there are always new roles and responsibilities to grow into. Collaborating in a cross-disciplinary community with superb colleagues is a source of learning, inspiration, and fun. Read more about our organisational culture as the builder of the world's most meaningful place to work.
• Support for your well-being. Our people are our main asset, so we take good care of them. We aim to nurture great team spirit and leadership and offer versatile well-being services to enable a good work–life balance. On top of annual 6 weeks of paid holidays (after one year), we offer exercise and culture benefits, hobby clubs, and other versatile services aiming to support your occupational wellbeing.

Apply now and join our community of brilliant minds!

Please send your CV with your salary request via our recruitment system at the latest by the 1st of March 2026. A security clearance procedure is conducted during the recruitment process.

Interested and want to hear more?

For further information, please contact Research Team Leader Joona Kurki, joona.kurki@vtt.fi, 020 722 5041 on February 13, 10:00-11:00 or February 20, 10:00-11:00.

We look forward to hearing from you!

VTT

VTT is a visionary research, development and innovation partner. We drive sustainable growth and tackle the biggest global challenges of our time and turn them into growth opportunities. We go beyond the obvious to help the society and companies to grow through technological innovations. We have over 80 years of experience of top-level research and science-based results.VTT is at the sweet spot where innovation and business come together.

VTT – beyond the obvious.