KTH Royal Institute of Technology in Stockholm has grown to become one of Europe’s leading technical and engineering universities, as well as a key centre of intellectual talent and innovation. We are Sweden’s largest technical research and learning institution and home to students, researchers and faculty from around the world. Our research and education covers a wide area including natural sciences and all branches of engineering, as well as architecture, industrial management, urban planning, history and philosophy.

Job description

The position entails further development of the computer code BELLA, for simulation of dynamic transients in liquid metal-cooled reactors. In particular, the work concerns both the behaviour of advanced fuels and response from the control and safety systems of the reactor. BELLA has been developed by researchers and scientists at the division of nuclear engineering and is used for safety informed design of liquid metal-cooled reactor concepts, with a special focus on lead-cooled reactors, such as SEALER and SUNRISE-LFR. Within this project, the selected candidate will implement modelling of minor actinide bearing fuels, as well as of both active and self-actuated passive control and safety systems. The work will be carried out within the frame of the EU-project PATRICIA and a Swedish Science Council project focused on Generation-IV reactors. You will work together with professor Janne Wallenius, Dr Sara Bortot, other postdocs, PhD students and MSc diploma students at the division. You can read more about what is included in a postdoctoral position in the Employment Regulations and on the Swedish Agency for Government Employers – postdoctoral agreement

What we offer

  • A position at a leading technical university that generates knowledge and skills for a sustainable future
  • Engaged and ambitious colleagues along with a creative, international and dynamic working environment
  • Exciting work within national and international projects.
  • A research environment focusing on the development of the nuclear power of the future.
  • Works in Stockholm, in close proximity to nature
  • Help to relocate and be settled in Sweden and at KTH

Read more about what it is like to work at KTH



  • A doctoral degree or an equivalent foreign degree, within nuclear engineering, physics or material science obtained within the last three years prior to the application deadline (With some exceptions for special reasons such as periods of sick or parental leave, kindly indicate if such reason exists in your resume).
  • Proven skills in terms of scientific publications in peer-reviewed journals, as well as experience from developing computer codes for simulation of dynamic systems.

Preferred qualifications

  • Experience in dynamic systems modeling and control theory is highly preferential, as well as the knowledge of Matlab-Simulink and Python. Pedagogical experience from teaching at universities is of merit. In order to succeed and enjoy your role, we prefer that you have a well-documented ability to cooperate, to work independently and that you are aware about diversity- and equality issues, with particular focus on gender equality.

Great emphasis will be placed on personal competency

Trade union representatives

You will find contact information to trade union representatives at KTH’s webbpage.


Log into KTH’s recruitment system in order to apply to this position. You are the main responsible to ensure that your application is complete according to the ad.

The application must include a CV with relevant work experience and competences, a short account of why you wish to conduct research, your academic interests and how they relate to your previous education and future goals (maximum 2 pages).

Your complete application must be received at KTH no later than the last day of application, midnight CET/CEST (Central European Time/Central European Summer Time).

About the employment

The position offered is for, at the most, two years.

A position as a postdoctoral fellow is a time-limited qualified appointment focusing mainly on research, intended as a first career step after a dissertation.


Striving towards gender equality, diversity and equal conditions is both a question of quality for KTH and a given part of our values.

For information about processing of personal data in the recruitment process please read here.

We firmly decline all contact with staffing and recruitment agencies and job ad salespersons.

Disclaimer: In case of discrepancy between the Swedish original and the English translation of the job announcement, the Swedish version takes precedence.

Type of employmentTemporary position longer than 6 months
Contract typeFull time
First day of employmentAutumn 2021 or according to agreement
SalaryMonthly salary
Number of positions1
Working hours100%
CountyStockholms län
Reference numberS-2021-1073
ContactProfessor Janne Wallenius, janwal@kth.seHead of Physics, Professor Pär Olsson, polsson@kth.se
Last application date01.Nov.2021 11:59 PM CET

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