Enlightening Science

European XFEL is an international non-profit company located in the Hamburg area in Germany. It operates a 3.4 km-long X-ray laser, which produces X-rays of unique quality for studies in physics, chemistry, the life sciences, materials research and other disciplines. The diverse scientific facilities at European XFEL enable scientists from across the globe to carry out a wide range of experimental techniques. For our HED instrument we are looking for an

PhD Student (f/m/d) for Warm Dense Matter X-ray spectroscopy - part-time (29,25 hrs/week)

The Position

• Carry out the PhD research project “High resolution measurements of the electronic response of materials in Warm Dense Matter” at the HED instrument
• Plan, prepare, and perform x-ray heating experiments, and shock-compression experiments using the DiPOLE laser system
• Acquire, analyse, and interpret experiment data, combining spectroscopy and diffraction with theoretical models and simulations
• Present results at international conferences and workshops, and publish in peer-reviewed journals
• Actively participate in the collaborative research environment at HED, including interaction with external user groups and research consortia
• Successfully complete and defend a doctoral thesis within the project duration

Requirements

• Master’s degree (or equivalent) in Physics, Mathematics, Chemistry, or a related field, preferably with a background in experimental plasma physics, atomic physics, x-ray techniques or related areas
• Prior experience with experimental methods in x-ray optics, spectroscopy, or plasma physics is advantageous
• Strong interest in HED physics and motivation to work in large-scale international research collaborations
• Basic programming and data analysis skills; familiarity with python is beneficial
• Good communication skills and proficiency in written and spoken English
• Readiness to participate in experimental experiments, including shift work

For additional information, please contact Thomas Preston (thomas.preston@xfel.eu). Working place will be Schenefeld, in the Hamburg metropolitan area. General information on working in Germany, the Hamburg area and the European XFEL can be found on our Career Page.

Reference Number S-655

Duration This appointment is initially limited to 4 years.

Our offer Become part of a vibrant international and multi-cultural team of scientists, engineers, technical and administrative staff. Be involved in cutting edge scientific and technical progress and participate in our international networks. Experience our atmosphere of tolerance and respect.

Salary and benefits are similar to those of public service organizations in Germany, this includes for example:

• family friendly working environment (e.g. additional childcare days)
• flexible working times and option for work from home depending on tasks
• 30 days of vacation, 24th and 31st of December are free as a courtesy of the employer
• extensive relocation benefits
• generous company pension scheme (6,45% of monthly salary)
• monthly social events and subsidized company restaurant
• partially financed job-tickets for public transportation
• extensive training opportunities incl. subsidized English and German language classes
• Easy and free access to a mental health platform to support your wellbeing

Our company language is English.

Application Please provide your CV and a motivation letter in English as well as any reference letters.

The European XFEL GmbH is an equal opportunity and affirmative action employer and we promote and support diverse and heterogenous teams. Applicants with disabilities will be given preference over other equally qualified applicants.

Application Deadline: 10/06/2026