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Adnan Tresnjo is a technology leader with extensive experience in software development and engineering. As Chief Technology Officer (CTO) at SmartChange GmbH from July 2023 to February 2024 and at Vertragswechselservice GmbH from July 2021 to July 2023, Adnan oversaw technical strategy and innovation. Prior to these roles, Adnan served as a Senior Software Developer and Softwareentwickler at various companies, including ESE Engineering und Software-Entwicklung GmbH and heinekingmedia GmbH, where work primarily focused on C# development and SaaS offerings. Adnan's career also includes a position as a Software Engineer at adesso AG and a .NET-Softwareentwickler at medsolv GmbH, showcasing a strong foundation in software engineering and internet marketing. Additionally, Adnan freelanced as a Softwareentwickler from May 2009 to March 2015.