Aalto University invites applications for Doctoral and Postdoctoral Researchers to join the Engineered NanoSystems (ENS) research group working on compound semiconductor energy converters. The position focuses on developing electroluminescent and thermophotonic devices based on III–V semiconductors, covering epitaxial growth, device fabrication, characterization, and modelling. The role offers the opportunity to work in a highly interdisciplinary team of theoreticians and experimentalists within a state-of-the-art cleanroom environment, contributing to breakthrough research in optical cooling, solid-state energy conversion, and thermophotonics.