I am Joshiwa, an astronomer currently working as a researcher for the ALMA ARC Node, Allegro, in Leiden. I work on (sub-)mm observations of galaxies and galaxy clusters, pushing them towards the redshifts at which they form. Recently, I obtained my PhD (magna cum laude) — which I did at the European Southern Observatory in Garching — titled: The birth of cosmic structures as revealed by observations in the (sub-)mm bands.