As you may know by now, traditionally in the tech industry developers are divided into four gradations based on their qualification levels: Junior, Middle, Senior and Team Lead. Or five, if you include coding Interns as the lowest-ranked “soldiers” of the software development industry. Of course, these gradations are quite conditional and open to interpretations depending on the company or the country. Which is often confusing to programming beginners who are at the start of their professional careers in software development and are wondering what it really takes to grow from a Junior coder to Senior Developer.And this is exactly the question we will try to answer today. So how long does it take to become a Senior Java Developer?