This allows you to discuss a set of expectations for a particular role. But such labels have to be used to simplify the picture of the world and increase the effectiveness of communication - they are familiar to both clients and colleagues.
If you think about it, "junior", "middle", and "senior" are just labels. After all, we hire the whole person for a team, with all their pros and cons, and not just buy the required function from the labor market. Initially, DataArt did not have a formal gradation in terms of qualification. But it will be useful to those who are just starting out in IT or do not really understand how and where to develop further, feel undervalued, or just want to expand their horizons. The text I wrote does not pretend to be the ultimate truth and is unlikely to be a revelation for people who are already versed in the matter. I'll allow myself a traditional disclaimer - this article sets forth my personal views (fortunately, it’s allowed in DataArt, so no one has to adhere to one specific thinking). My main duties include hiring and developing our specialists, so discussing the "seniority" of the staff and the qualities necessary for a particular role is relevant and habitual for me. Currently I manage DataArt’s development center in Odessa (I myself am from St. Hello everybody! My name is Alexander Demura, and I have been working in IT since 2004.