Marc Witzke is the Chief Technology Officer for the Bitfury Group. Marc brings more than 20 years of experience in global R&D, engineering and manufacturing of semiconductors and electronic products. Prior to joining Bitfury, he served Yota Devices, the inventor of the dual-screen YotaPhone as the CTO and led the HW and SW R&D teams in Finland, Moscow and China developing consumer electronics and connectivity devices. Prior to Yota Devices, he served Plastic Logic - a pioneer in flexible and organic electronics technology - for more than 6 years as the Director of Manufacturing and General Director of Plastic Logic’s Russian entity. Prior to this, Marc was the Senior Manager of Technology in AEMtec, a spin-off of Infineon Technologies, for 7 years. He was one of the start-up management team members of AEMtec and has led technology development through rapid growth. Marc started his career with Siemens, Fibre Optics business unit, where he served as a Process Engineer and later Operations Manager. He has led various novel technology, start-up businesses and manufacturing projects in many countries.