We seek excellent, highly motivated Ph.D.-candidates with strong mathematical skills in one or more of the field of numerical analysis to fill a doctoral position associated with the subproject C04. Employment of the doctoral candidate will be three years.  ​ Candidates for the doctoral positions should hold a master’s degree in Mathematics (or closely related subject). Applications may be submitted before the master's degree is completed, but the degree must be finalized before the start of the position. Applications for these positions may be written in English or German and should be emailed as a single pdf-file to ​ reusken@igpm.rwth-aachen.de    and    best@ians.uni-stuttgart.de and include: Application form (download here: word, pdf) Cover letter explaining motivation and specifying research interests Curriculum Vitae Transcript (list of all courses including grades) Copies of degree certificate Master’s thesis Summary of master’s or doctoral thesis ​ In addition to the above, at least one letter of recommendation by a senior scientist, commenting on the applicant’s qualifications, should be sent directly by the letter writer to the email address above. Additional potential reviewers may be listed in the CV. We will start reviewing applications until the position is filled.