Join the Plasma Physics and Fusion Energy Section at the DTU department of Physics, where we advance the fundamental understanding of plasma physics with a focus on fusion plasmas. We are looking for a skilled and motivated Computational Engineer to work on the development of numerical gyro-fluid edge turbulence models targeting magnetic confinement fusion devices. 

Our section conducts cutting-edge research in plasma transport, turbulence, and particle confinement, combining experimental studies with advanced numerical modelling. You will lead the software development of our three-dimensional 6-moment gyro-fluid simulation code and will focus on implementation of plasma-neutral interactions, improved gyro-average operations, and non-axisymmetric magnetic field geometries. 

You should have a strong background in gyro-fluid modelling of turbulent plasmas, the numerical methods used to discretise such models, as well as the technical skills to implement these algorithms on high performance computer architectures, specifically GPUs.

Responsibilities /Tasks

• Develop three-dimensional 6-moment gyro-fluid simulation code in particular to include plasma-neutral interactions, multispecies modelling, improved gyro-average operators, non-axisymmetric magnetic field geometries and sheath boundary conditions
• Maintain compliance with EUROfusion software specifications including documentation, CI/CD, user support, and training
• Setup and analysis of plasma edge turbulence simulations for present and future tokamaks specifically with the aim to validate simulation results against experimental findings in e.g. TCV, MAST-U, ASDEX-U, and NORTH.
• Improvement of the current 6-moment gyro-fluid model with respect to collisions and full-F gyro-average operators with a clear focus on optimising numerical implementations
• Monitor and improve the numerical and high-performance capabilities of the code

Qualifications

• PhD in computational plasma physics or similar
• Experience with GPU programming and high-performance computing
• Strong programming skills in C++ and experience with parallel computing (e.g., CUDA, MPI).
• Experience with tokamak edge gyro-fluid modelling
• Experience with continuous integration of scientific software

What we offer in return
We offer an exciting and challenging position in an international environment with the opportunity to make a significant impact on clean energy systems. You will work with state-of-the-art facilities and collaborate with leading researchers in the field. DTU provides excellent working conditions with a supportive and inclusive culture.

Salary and appointment terms
The appointment will be based on the collective agreement with the Danish Confederation of Professional Associations (AC). 

The position is a full-time position. Starting as soon as possible. 

The workplace is DTU Lyngby Campus.

Application and contact
Please submit your online application no later than Tuesday, 16 September 2025 (23:59 Danish time) .  Open the “Apply now” link, fill out the form and attach your motivated application, CV and exam certificates. 

If you would like additional information about the position, please contact Professor Stefan Kragh Nielsen on +45 2367 4489.

Applications received after the deadline will not be considered.

All interested candidates irrespective of age, gender, disability, race, religion or ethnic background are encouraged to apply. As DTU works with research in critical technology, which is subject to special rules for security and export control, open-source background checks may be conducted on qualified candidates for the position.

Technology for people
DTU develops technology for people. With our international elite research and study programmes, we are helping to create a better world and to solve the global challenges formulated in the UN’s 17 Sustainable Development Goals. Hans Christian Ørsted founded DTU in 1829 with a clear mission to develop and create value using science and engineering to benefit society. That mission lives on today. DTU has 13,500 students and 6,000 employees. We work in an international atmosphere and have an inclusive, evolving, and informal working environment. DTU has campuses in all parts of Denmark and in Greenland, and we collaborate with the best universities around the world.