Joshua Langberg has spent nearly two decades in software and hardware quality assurance, verifying that products actually do what their makers claim. He is QA Lead at Listen, Inc., which builds audio test systems, and previously spent nearly five years at Google as a test engineer on the Pixel Watch, joining through its acquisition of Fitbit. Earlier, he led DSP quality assurance for Cakewalk’s SONAR. Through Psychosonic Consulting, he now develops privacy-first Mac and iOS applications, including Bibliome, a document research tool whose AI runs entirely on-device with no network access.