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 Theory group we are looking for an

PhD student (f/m/d) in Theoretical and Computational Physics - part-time (29,25 hrs/week)

The Position
  • Develop and apply rotational-invariant methods for x-ray scattering and single-particle imaging at XFELs, with a focus on biological and nanoengineered particles
  • Advance theoretical and computational approaches for extracting and analyzing angular cross-correlation functions and rotational invariants in x-ray scattering
  • Analyze and interpret experimental XFEL datasets—primarily from the European XFEL—and participate in relevant beamtimes and collaborative research projects with internal and external user groups
  • Contribute to the development of in-house software for invariant-based structural analysis and disseminate research results through scientific publications, conference presentations, and a PhD thesis.
Requirements
  • A master’s degree in physics or a related discipline
  • A strong background in mathematics
  • Programming skills (Python or C/C++ will be considered an asset)
  • Proficiency in spoken and written English
  • Strong communication skills and an interest in collaborating with experimentalists and theorists

For additional information, please contact Dr. Ruslan Kurta (ruslan.kurta@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-685

Duration
This appointment is limited to 3 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.
Work-life balance & flexibility
  • A family-friendly working environment (e.g. additional childcare days)
  • Flexible working hours and options to work from home (depending on your role and tasks)
  • 30 days of paid vacation, plus December 24th and 31st off (granted by the employer)
Compensation & long-term security
  • Transparent compensation aligned with public service organizations in Germany
  • PG 13/1 with 3,676.28€ (75% position), here is the link to the current valid tariff table
  • Depending on the pay group, we offer an annual special payment of 75-95% of one month’s salary. 
  • Partially funded public transportation Deutschlandticket
  • Generous company pension scheme (6.45% of your monthly salary)
Support from day one
  • Extensive relocation benefits to help you settle in smoothly
  • English as company language, enabling easy collaboration in our international environment
Learning, wellbeing & community
  • Extensive training opportunities, including subsidized English and German language courses
  • Subsidized sports membership with access to over 7,000 sport clubs
  • Monthly social events and company restaurant with employee discounts
  • Free access to a professional mental health support platform

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: 23/11/2026