Doctoral Researcher (f/m/d), Scientific Staff Member (f/m/d) - High-Field EPR Spectroscopy, Millimeter-Wave Resonators, and Optoelectronic Detection Systems

Your Tasks

• Design, simulation, and optimization of advanced microwave and millimeter-wave resonators for high-field electron paramagnetic resonance (EPR) spectroscopy.
• Development of topologically optimized multi-resonance EPR detectors capable of simultaneous measurements on multiple samples with minimal crosstalk.
• Electromagnetic modeling and numerical optimization using COMSOL Multiphysics, CST Studio Suite, and related simulation tools.
• Fabrication and experimental characterization of microwave and millimeter-wave resonators operating from X-band frequencies up to 263 GHz.
• Development of novel interferometric microwave circuits for suppression of excitation-signal background and enhancement of EPR detection sensitivity.
• Integration of optoelectronic signal-generation and signal-readout modules with EPR resonators to realize compact fiber-coupled high-field EPR systems.
• Development and implementation of multi-sample and multi-resonance EPR detection platforms for operation at magnetic fields up to 9.4 T.
• Design and integration of radiofrequency (RF) coils for electron-nuclear double resonance (ENDOR) and dynamic nuclear polarization (DNP) experiments.
• Experimental validation of the developed hardware through EPR, ENDOR, and DNP measurements on model paramagnetic samples.
• Publishing research results in leading international journals and presenting findings at international conferences.

Your Profile

• A completed university degree (Master’s level) in Electrical Engineering, Photonics, Physics, Microsystems Engineering, Telecommunications Engineering, or a related field
• Strong knowledge of RF, microwave, or millimeter-wave engineering.
• Experience with electromagnetic simulation tools such as COMSOL, CST, HFSS, ADS, or equivalent software.
• Experience in micro fabrication and micro manufacturing.
• Knowledge of magnetic resonance techniques (EPR, NMR, MRI), microwave photonics, or microwave integrated circuits is advantageous.
• Excellent English communication skills, both written and spoken.

We Offer

• Career‑Building and Developmental Opportunities : We provide you with a structured onboarding program, a broad spectrum of continuing‑education options, and personalised support, thereby fostering your individual growth.

• Flexible Working Hours : Take advantage of flexible‑hours schemes, remote‑work options, and a 30‑day annual leave entitlement to achieve an optimal work‑life balance.

• Family-friendliness : The “KIT‑Family +” program assists you in reconciling work and family life by offering childcare services, holiday activities, a parent‑child office space, and assistance with caring for relatives.

• Stay Healthy : Under the motto “Fit at KIT – Body, Mind and Soul,” we promote your well‑being through fitness classes and mental‑health programmes.

• Individualised Extra Benefits : Enjoy a corporate pension (VBL), a €25 monthly contribution toward a JobTicket BW, plus a broad selection of cultural and recreational programmes.

• Excellent Research Conditions & State-of-the-art Infrastructure : Benefit from a unique environment that combines university and large-scale research, and gain access to state-of-the-art equipment and interdisciplinary projects. This environment enables you to conduct both basic and applied research at the highest level.

Job location Eggenstein-Leopoldshafen (and Karlsruhe)

Salary Salary category EG 13 TV-L; classification is based on personal and professional qualifications. Contract duration 3 years

Contact person in line-management Dr. Mazin Jouda mazin.jouda@kit.edu

## If you have general questions about the application process, please contact Bärbel Gätcke Personalservice (PSE) baerbel.gaetcke@kit.edu +49 721 608-25010 Please include the following documents with your application: A detailed curriculum vitae (CV) A motivation letter / cover letter B.Sc. and M.Sc. degree certificates, including transcripts of records Any additional relevant supporting documents At KIT we value the diversity of our employees; different perspectives and backgrounds enrich our work. We therefore welcome applications from all candidates. Women are especially encouraged to apply. Applications from recognized severely disabled individuals are given preferential consideration when qualifications are equal.

Application up to: 2026-09-30 Job posting number: 380/2026