Going freelance. I went from having worked with Java, C++ and PHP to a variety of languages, platforms, business situations and teams. I learned so much about J

Going freelance. I went from having worked with Java, C++ and PHP to a variety of languages, platforms, business situations and teams. I learned so much about JavaScript alone during this period that I wrote a book about it. Frequent, real business and engineering challenges. Exposure to a variety of people in organisations from the Netherlands to Silicon Valley, at startups and multinational corporations. There is no substitute for this kind of learning, and I am so thankful I was able to do it.