Summary
Stephen Lumenta is a Berlin-based Chief Technology Officer with 16 years of experience leading engineering teams and building AI-driven products. As CTO at Phrase since 2021 he drives automation and machine‑learning powered localization to scale language for teams of any size. He previously led technology at Opinary and STOR.ES, combining IoT, ML and SaaS to analyze customer behavior and deliver data-driven products. Earlier work as an independent consultant for clients such as AUDI, BMW and major art institutions, plus a lecturing stint at Bern University of the Arts teaching software, hardware hacking and creative algorithms, gives him a rare mix of enterprise rigor and experimental interdisciplinary thinking. Known for turning prototypes and technical strategy into production systems, he bridges research, product and engineering to move language and sensor-driven insights from concept to market.
17 years of coding experience
19 years of employment as a software developer