The Stiel Lab at Helmholtz Munich invites applications for a PhD or Postdoctoral position focusing on photoswitching-optoacoustic imaging for medical diagnostics. The researcher will advance a novel surface acoustic wave–based photoacoustic detection technology toward demonstrator level (TRL 5–6), combining microfluidics, laser diode excitation, and optoacoustic signal detection. Responsibilities include technology implementation, proof-of-concept experiments with medically relevant cell types, publication preparation, and market and competitive analysis. The position offers a unique opportunity to contribute to translational research with strong commercialization and startup potential.