Expert in Thermal Hydraulics

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Expert in Thermal Hydraulics

Are you an expert in Thermal Hydraulics within the nuclear fuel field and are looking for an new challenge?  

The department Nuclear Design and Analysis is now looking for a new colleague to our competent team at our office in Solna.  

The department’s competence areas are reactor physics, thermal hydraulics and safety analysis. The main tasks of the department are nuclear design optimization for the fuel to be delivered to the Vattenfall’s nuclear power plants Ringhals and Forsmark. We also perform core design optimization and safety analysis for the coming operating cycle outages at the power plants, licensing analyses review and technical evaluation of new types of nuclear fuel. The department also provides analyses within its competence areas for Svensk Kärnbränslehantering.   

To perform these tasks, the department uses advanced computer codes such as POLCA, SIMULATE, SIMULATE-3K, BISON and TRACE to simulate both steady-state and transient conditions in the core. Assignments are performed individually or as a part of larger projects where several technical disciplines cooperate.  

Your main responsibilities

• Modeling and simulation of nuclear fuel thermal-hydraulic behavior

• Development of calculation methods and models

• Assessment of the nuclear fuel thermal-hydraulic performance

• Safety evaluation of fuel and core design for Forsmark’s reactors

• Expert support to the team and the power plants  

The work includes close contacts with our colleagues in Forsmark and Ringhals and with our suppliers of nuclear fuel and computer software. Together with the power plants and suppliers, we continuously work to improve our work processes and products.  

Your qualifications

• University degree, equivalent to a Master’s degree or similar

• Previous working experience within thermal hydraulics in the nuclear fuel field, preferably for boiling water reactors

• PhD within thermal hydraulics is a merit

• You can express yourself orally and in writing in both Swedish and English  

As a person you are analytical, thorough and quality-conscious. You work independently and take initiative. You get things done. Working together with others in various forms of project is also something you appreciate. You are skilled in documenting your work and to present it in a way that is understandable for a broader audience  

You will be part of a of a very competent and experienced team that values openness and collaboration and works for positive and inclusive working environment.

Our employees are our key to success. We care for our employees’ competence and personal development and we want to create the right conditions for you. Your development is important for us and we will always encourage you to use your competences and give you opportunities to develop through new challenges, training and transfer of competence. We offer you flexible hours and the opportunity to work from home.  


Solna, Arenastaden (Stockholm).  

For further information about this position, please contact the recruiting manager Céline Alberts, +46 70 739 70 63, celine.alberts@vattenfall.com. For information on the recruitment process, please contact recruiter Caroline Grammenos, +46 72 224 97 01.  

Union representatives – +46 8 739 50 00.

Malin Löwe (Sveriges Ingenjörer)

Jan Stigbert (Unionen)  

Welcome with your application no later than 29th of September 2019.

Diversity and inclusion – in everything we do

Read more on how we work with diversity and inclusion here.  

We look forward to your application!  

Our organization

Vattenfall Nuclear Fuel AB procures, optimizes and delivers nuclear fuel to Vattenfall AB´s nuclear power plants. The company provides technical analyses and services related to fuel and reactor operation. VNF has about 50 employees..  

Vattenfall Nuclear Fuel AB is part of (BU) Fuel, Engineering & Projects, a business unit with approximately 300 employees within (BA) Generation. Fuel, Engineering & Projects delivers nuclear fuel to Vattenfall AB´s nuclear power plants, develop and implement projects and provide internal technical specialists to all parts of Vattenfall.  

Since Vattenfall is a part of the Swedish critical infrastructure, many of our services are security classed. If this position is security classed the final candidates might be subjected to a security vetting process, according to the Swedish legislation.

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Expert in Thermal Hydraulics

Vattenfall AB