Instrument Scientist For Freia
European Spallation Source Eric / Fysikjobb / Lund
2026-03-26
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hela Sverige 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, built from the ground up.
Come and shape the future of Science with us!
About the role:
ESS is at an exciting turning point. It is in transition from being a construction site, to being an operating facility. To help us realise our goal of being the most powerful neutron source in the world, we are now looking for an Instrument Scientist for the FREIA Instrument to join our Large Scale Structures Division.
FREIA is a horizontal sample neutron reflectometry instrument designed specifically with the needs of the soft matter, and bio-science communities in mind. The instrument is designed to enable fast kinetic measurements on free liquid surfaces. Supported by the FREIA team including the lead scientist, data scientist, operations engineer, and our in-kind partner, ISIS Neutron and Muon Source, you will be tasked with helping to deliver the FREIA instrument to hot commissioning and prepare the instrument for user operations.
The FREIA instrument team are responsible for commissioning of the instrument, both with and without neutrons, for planning and implementation of further developments and upgrades of the instrument. The team will make delivery of state-of-the-art scientific capabilities for internal and external users to enable the wider science community to advance science and technology, and for pushing the state-of-the-art capabilities of neutron reflectometry.
Responsibilities as an Instrument Scientist for FREIA:
• Work with the FREIA team, and our in-kind partner ISIS, to plan and execute the instrument cold and hot commissioning.
• Help to prepare "First Science" experiments to be carried out during the initial operation phase of ESS.
• Provide expertise in the scientific application of neutron reflectometry and in neutron reflectometry method development.
• Continue and develop your own research in line with the FREIA science case.
• Establish and maintain collaborations with universities, laboratories and other relevant actors.
• Engage with the international reflectometry community, e.g. through presentations at conferences/workshops and experiments at other facilities.
• Once in operation, support the user program at ESS by performing local contacting duties and collaborative research.
This is a full-time/fixed-term (around 3 years) position based at the ESS Campus in Lund, Sweden.
About you:
Requirements:
• PhD in the physical sciences with research interests and publication record aligned with the science focus of the FREIA instrument, which includes soft matter and biophysics.
• Experience and technical interest in neutron reflectometry, preferably using time-of-flight techniques, including knowledge of data treatment and modeling.
• The ability to work in a team with people of a variety of disciplines in an international collaboration.
• Excellent oral and written English skills
The project requires occasional travel between ESS and partner facilities, so it 's important that you have the flexibility to travel.
It's beneficial if you also have experience from operation and development of neutron instrumentation and/or instrument control, if you have programming experience in Python and/or complementary experience from and competence in X-ray reflectometry or grazing-incidence scattering.
To be successful in this position we believe you are a team player, you are used to taking and driving your own initiative, you work hands-on with problem solving in an organized way and you have a good structure in your daily work.
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, individualized compensation which is differentiated according to role, responsibilities, individual skills, abilities and achievements as well as monthly pension contributions on top of your salary. You can learn more about the exciting benefits of working at ESS on our careers page.
To apply:
If you see yourself in what we're looking for, please provide your CV and motivation letter in English by clicking on "apply" and following the instructions. Please be aware that we can only accept direct applications made via the ESS website. Submit your application as soon as you can, last day to apply is on the 26 of April 2026.
This role requires additional background screening processes and health and safety checks, which will be performed during the recruitment and onboarding processes.
For further information regarding the recruitment process, please contact Talent Acquisition Specialist Sofie Berg on
sofie.berg@ess.eu For information about the position, please contact Head of Division Large Scale Structures Andrew Jackson on
andrew.jackson@ess.eu For trade union information, please contact Unionen representative Nerusha Naicker on
Nerusha.Naicker@ess.eu or SACO/Swedish Association of Graduate Engineers representative Marc Kickulies at
marc.kickulies@ess.eu Ersättning Montly
Så ansöker du Sista dag att ansöka är 2026-04-26
Klicka på denna länk för att göra din ansökan Omfattning Detta är ett heltidsjobb.
Arbetsgivare European Spallation Source Eric,
https://www.europeanspallationsource.se Arbetsplats European Spallation Source Eric
Jobbnummer 9820604