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Josef Martinec is a seasoned software developer with a substantial background in web and mobile application development. Currently serving as a Senior Developer at Keboola since March 2021, Josef previously held the position of CTO at Spendee from May 2017 to March 2021, where responsibilities included overseeing development across multiple platforms and ensuring security and compliance with business requirements. Josef's career began as a Junior PHP Developer at LazyHeads, followed by roles as a PHP & JS Developer at Hlaváček Webdesign, Inspirio, and a PHP Developer at Ušetřeno.cz s.r.o., focusing on various web-based solutions and technology implementations. Josef holds two degrees from Czech Technical University in Prague, a Bachelor's in Computer Science and Engineering and a Master's in Web Engineering.