Postdoctoral Researcher in the X-ray Operations group

Big Science Sweden; Deutschland; On-site; USD 50,000 - 70,000; Full time

Job summary

Big Science Sweden is seeking a highly motivated Postdoctoral Researcher in the X-ray Operations group. The successful candidate will further develop and optimize the XFELO demonstrator setup and contribute to experiments and publications.

The role involves collaborating with a team of scientists and engineers at European XFEL and DESY, aiming to advance the XFELO program through innovative research and experimentation.

Qualifications

• PhD in a related field such as physics, engineering, or related disciplines.
• Experience with X-ray systems or free-electron lasers is desirable.

Responsibilities

• Develop and optimize the XFELO demonstrator setup.
• Execute XFELO-related experiments and analyze data.
• Support workshops and meetings related to XFELO.

Job description

Postdoctoral Researcher in the X-ray Operations group

Datum: 25 mars, 2026 Tid: 11:59

Placering: XFEL

Mer information

Recent advances at the European XFEL have enabled lasing in a cavity-based X-ray free-electron laser oscillator (XFELO). This milestone opens new perspectives for X-ray generation and high-precision experiments. To advance the XFELO program to the next level, we are seeking a highly motivated Postdoctoral Researcher to support a joint team of scientists and engineers from European XFEL and DESY.

Key responsibilities:

• Further develop, optimize, and operate the existing XFELO demonstrator setup (hardware, beamline components, and experimental procedures). Contribute to the conceptual design of a tunable XFELO device, including performance studies, technical trade-offs, and interface definitions.
• Plan, prepare, and execute XFELO-related experiments—both internal measurements and experiments in collaboration with internal and external user groups.
• Analyze experimental data, document results, and contribute to publications, internal reports, and technical notes.
• Co-organize and support workshops and meetings related to XFELO science, technology, and future development (agenda, speakers, documentation, follow-up actions).