Expert Developer and Extreme Programming Specialist. Over 30 years of experience in software development, focusing on iPhone and iPad since their launch. I apply XP principles to deliver high-quality solutions with minimal bugs and optimal logic, from mobile apps to enterprise client-server architectures. Technical stack: Swift, Objective-C, C#, ASP.NET, Node.js, T-SQL, P-SQL, HTML and JavaScript. I bring this same technical rigor and "clean code" mentality to functional 3D design and printing, ensuring every project is efficient and reliable.