Short comment from my experience. I would say the difference between a junior and a mid is experience breadth of knowledge. Knowing what tools, patterns or arc

Short comment from my experience. I would say the difference between a junior and a mid is experience breadth of knowledge. Knowing what tools, patterns or architecture to use and when. The difference between a senior and a mid, is that a senior knows when NOT to use them. In other words, juniors and mids tend to focus their attention on technology. Seniors tend to focus on delivery.