The Chair of Applied Mathematics at the Faculty of Mathematics and Geography at the KU Eichstätt-Ingolstadt invites applications for a part-time position (75 %) asDoctoral candidatein Applied Mathematics/ Approximation Theoryto be filled by the earliest possible starting date with an initial contract duration of 3 years (with possibility for extension). The place of work will be Ingolstadt. The successful candidate will be employed in a private-law employment relationship, in which case remuneration will be according to pay grade E 13 TV-L provided that the requirements are met.The Chair of Applied Mathematics, headed by Prof. Marcel Oliver, is part of the Mathematical Institute for Machine Learning and Data Science (MIDS) at the KU Eichstätt-Ingolstadt.The research group works at the intersection of analysis, modeling and simulation. The advertised position is partly funded by the German Research Foundation (DFG) project "Kernel interpolation on Riemannian manifolds", led by Dr. Janin Jäger. The project focuses on the mathematical analysis of kernel-based methods, in particular their interpolation and approximation properties when applied to approximation on spherical surfaces and other Riemannian manifolds.Your tasks Contribution to current research projects of the ChairOwn mathematical research in the context of the project as part of the candidate's doctoral thesisKnowledge transfer through publications and participation in conferencesTeaching duties at the University as part of the subject-specific orientation of the Chair of Applied MathematicsYour profile University degree (Diplom, Master's or equivalent degree) in mathematics, preferably with a focus on one of the following areas:Numerical analysis(High-dimensional) probability theoryReal and functional analysisSpatial statisticsFourier analysisA university degree at Master's level is a prerequisite for pursuing the doctorate and must be completed when starting the position (not necessarily when submitting the application).Interest in mathematical analysis of approximation algorithmsPreferably practical experience in programming (not mandatory)Interest in teaching in our Data Science program (experience desired, but not mandatory)German language skills are not required, but candidates are encouraged to acquire them while holding the positionOur offer Attractive and team-oriented workplace in the center of IngolstadtOpportunity to pursue own research interests and obtain a doctoral degree in mathematicsOpportunity to gain teaching experienceInteresting and versatile range of responsibilities and tasksInternational contactsYour applicationPlease send your detailed application with the usual documents by September 21, 2025, via our online application portal to Dr. Janin Jäger. All submitted application documents will be destroyed in accordance with data protection regulations after the hiring process has been completed.All employees are obliged to acknowledge the nature and mission of the KU as stipulated in its Mission Statement and Foundation Charter. The University is therefore interested in receiving applications with relevant information in this regard. Other than that, there are no denominational requirements for employment at the KU.The KU is committed to promoting equal opportunities and aims to ensure that its members are able to balance work and family life. Candidates with severe disabilities who are equally suitable to other applicants will be prioritized.