Efstratios (Stratos) Kehayas is the President of Gooch & Housego (G&H: https://gandh.com/) Photonics, leading the development of photonic solutions for Semiconductor, Life Sciences, and Aerospace & Defense. He has been part of the G&H executive team since 2018, serving as Group CTO and CCO, and President, helping the company expand into systems. Stratos founded Constelex, a space photonics startup acquired by G&H in 2013. He holds a BEng from Southampton University, an MSc from Imperial College London, and a PhD from the National Technical University of Athens. He is a senior member of OPTICA and IEEE, with over 100 peer-reviewed publications and six patents. Stratos lives with his family in Northern California.