If you don’t see senior level people working at the company, first of all, that usually means the company is lacking of the opportunity to promote in terms of job position and salary, and because senior level people possess certain skills and experiences, they can make move quicker and easier, after they departed, junior level people become the people who work at the company the longest and enjoy the seniority. Employers will give these junior people more authority and responsibilities because these junior people are considered loyal, and if you have inexperienced junior level people take in charge and boss around the new coming senior level people, the work environment can be chaotic. Some junior level people even abuse their authority and seniority to take advantage of circumstance and turn themselves into underground bosses. They can do whatever they want because they can get rid of anyone they don’t like including more senior level people who were hired to be in charge. Employers normally listen to these junior level people’s words since they work at the companies the longest so they were considered loyal and trustworthy. As a new employee in this kind of company, no matter you are a junior, intermediate or senior level person, you definitely will have hard time at work no matter what you do unless you become the best friend with the junior level person who works there the longest. On the end, the only people who can thrive at these companies are those who know how to play mind game and politics, not those who are capable or working hard.