JobbMagasinet.se

The European Spallation Source is one of the largest science and technology infrastructure projects being built today.
The project includes the most powerful linear proton accelerator ever built, a five-tonne, helium-cooled tungsten target wheel, 15 state-of-the-art neutron instruments, a suite of laboratories, and a super-computing data management and software development centre.
In the context of its history and future as a scientific organisation, however, it is more than the sum of its parts.
It is a brand-new Big Science organisation, and we are building it from the ground up.Come and shape the future of science with us!

The ESS Science Directorate invites applications for a Postdoctoral Fellow position in the Diffraction & Imaging Division.
The Diffraction and Imaging Division is home to the instrument scientists and instrument operations engineers working on designing, constructing, and operating the DREAM, MAGiC, BEER, HEIMDAL, ODIN, and TBL beamlines.
This position is associated with the powder diffractometer DREAM.

About the role:

ESS is searching for an engaged and motivated Postdoctoral Fellow to work within the Diffraction & Imaging Division.
The work will be focused on experimental studies of novel nanoparticle electrode materials for Li/Na-ion batteries.
In particular, the correlation between crystal structure/morphology of nanoparticles and battery performance will be studied by a combination of neutron powder diffraction (NPD), neutron pair-distribution function (nPDF), and small-angle neutron scattering (SANS) measurements.
Design of the experiments, data reduction, and data analysis are essential responsibilities for this position.

Day-to-day, you will:

• Prepare and participate in NPD, nPDF and SANS experiments at ESS and other facilities

• Analyze collected data

• Contribute to the development and commissioning of the electrochemical cell at the DREAM instrument

• Travel to partner institutions to collaborate on data analysis and cell design

• Document and communicate results through clear notes, reports, and presentations
• Present results at national and international conferences

Essential qualifications:

• PhD, within the subjects of physics, material science, or chemistry

• Hands-on experience in NPD and nPDF measurements

• Solid foundation in crystallography

• Demonstrated ability to conduct high‑impact research, evidenced by publications in peer‑reviewed journals and/or presentations at scientific conferences

• Ability to work collaboratively and independently

• Good interpersonal communication and presentation skills

• Flexibility to requests to work out-of-hours

• Responsible attitude to personal safety and the safety of others

• Willingness and availability to travel internationally
• Excellent oral and written English skills

Desirable experience:

• Experience with the software for diffraction data analysis (GSAS/FullProf, PDFgui, RMCprofile)

• Experience with time-of-flight neutron scattering

• Experience in designing sample environment equipment for neutron scattering experiments

Duration & Location

The position is a fixed term role for about 3 years and the workplace will be situated in Lund (Sweden), with frequent travels to Uppsala and Essen.

Application & Contact

A career at ESS gives you the opportunity to contribute to the future discoveries within neutron science at a stunning, brand-new workplace filled with innovative minds and brilliant people from across the globe.
We offer market competitive, individualised compensation which is differentiated according to role, responsibilities, individual skills, abilities and achievements as well as monthly pension contributions on top of your salary.

If you see yourself in what we’re looking for, please provide your CV and motivation letter in English by clicking on “apply” and follow the instructions.
Please submit your application as soon as you can, the latest day of application will be June 8, 2026.

First round of interviews (via Zoom) will take place on June 11 and 12, 2026.

For further information regarding the position, please contact Talent Acquisition Specialist Louise Jönegård on louise.jonegard@ess.eu or Hiring Manager Mikhail Feygenson on mailto:mikhail.feygenson@ess.eu.

For trade union information, please contact Unionen representative Nerusha Naicker on mailto:erusha.Naicker@ess.eu or SACO/Swedish Association of Graduate Engineers representative Marc Kickulies at mailto:marc.kickulies@ess.eu 

We look forward to receiving your application!Please be aware that we can only accept direct applications made via the ESS website.Certain roles require additional background screening processes and health and safety checks, which will be performed during the recruitment process.
For more information regarding the ESS recruitment process in general, please follow this link: https://europeanspallationsource.se/careers

We have made our media choice regarding recruitments and kindly decline contact with media sellers.