I am a Software Engineer with 15 years of experience. Around ten years ago, I switched from writing ANSI C for embedded systems to mobile development. Yeap! Those were the good ol' days with iOS 3, Interface Builder, Eclipse, the iPhone 3GS, Java, and Objective-C. I have worked in small projects where I was the sole engineer, and in big apps with multiple teams and 50+ developers, supporting millions of users worldwide. I have interviewed hundreds of candidates and I have done several dozens of interviews as a candidate myself during all this time from small start-ups to Big Tech companies.