Postdoc Position: Cosmic Ray Detection at the Square Kilometre Array Radboud University in Netherlands

Radboud University invites applications for a postdoctoral position in cosmic ray detection at the Square Kilometre Array (SKA), based in Nijmegen, The Netherlands. This ERC-funded role is embedded within the SKA High Energy Cosmic Particles Science Working Group and offers the opportunity to work at the forefront of astroparticle physics, collaborating with leading institutions across Europe and Australia.

The successful candidate will join the cosmic-ray group at Radboud University, renowned for its pioneering work in radio-based air shower detection and instrumentation. The group maintains close ties with ASTRON and the Radboud Radio Lab, which develops electronics for the SKA particle detector array. The position involves designing and commissioning particle detectors for the SKA, leading feasibility studies to distinguish between muons and electrons in cosmic-ray air showers, and characterising signals using Geant4 and CORSIKA simulations. The candidate will assess whether SKA's high-frequency electronics can enable novel separation techniques, directly influencing the detector upgrade path.

Additional responsibilities include developing the SKA radio data pipeline for cosmic-ray detection, building on LOFAR and NuRadioReco frameworks, and mentoring a PhD candidate working on complementary aspects. The role combines software development, detector physics, and observatory coordination, with expectations to present at international conferences and contribute to high-profile publications.

Applicants must hold a PhD in astroparticle physics, astrophysics, or a closely related field, with experience in cosmic particle detection, data analysis pipelines, and detector simulation tools (Geant4, CORSIKA). Strong interest in instrumentation, a publication record, and excellent English communication skills are required. Experience with radio telescope data, signal processing, or calibration techniques is advantageous. Candidates should be proactive, collaborative, and enthusiastic about mentoring junior researchers.

The position offers a two-year contract, gross monthly salary €3,546 - €5,538, 8% holiday allowance, 8.3% end-of-year bonus, flexible working hours, extra days off, choice of annual leave, sports and cultural discounts, pension plan, and training opportunities. Radboud University provides a supportive, inclusive environment with a vibrant international community.

Apply online by 14 June 2026 via the provided link, addressing your application to Dr Katharine Mulrey. Interviews are scheduled for 24 and 25 June 2026, with a preferred start date of 1 September 2026. For further information, contact Dr Katharine Mulrey at [email protected].