Bahadir Yesil is the R&D director at Baylan Water & Energy Meters, with over 25 years of experience in the development of advanced metering solutions. He holds a master’s degree in electrical and electronics engineering and specializes in flow measurement systems, prepayment and remote reading water meters, remote-controlled valves, and IoT technologies like LoRaWAN and NbIoT. He played a key role in the solid-state measurement revolution in energy meters, which began in the late 1990s. Starting his career in embedded design, he worked with 8-bit RISC processors and assembly language before advancing to 32-bit DSP and mixed-signal controllers using C and high-level IDE platforms. His work spans microcontroller-based measurement and control devices, from basic flow meters to next-gen IoT-enabled systems. One of his significant contributions was integrating ultrasonic Time of Flight (ToF) principles into the first ultrasonic residential water meters in the prepayment market, enhancing accuracy and reliability in water metering. He has also been involved in digital electricity metering projects, helping drive the transition to solid-state energy meters. Over the years, he has progressed from embedded software engineer to project manager and now R&D director. His leadership focuses on advancing signal processing, AI, and embedded systems design, continuing to push the boundaries of smart metering technology.