From your post, it appears you are working at a company that is managed by non-Muslims. And they have all ganged up to cause pain and sufferings to you in any way when and where they get an opportunity just because you are a Muslim. Its an open case of religious discrimination and that too taking place in a Muslim country, Qatar. As it is, I know of companies where Muslims do not get employed. There is a mafia working against Muslims in the Middle East and I saw several such companies during my stay in S Arabia.
In a case such as yours, I suggest you get together other Muslims in you company and make salah in congregation. If anyone from the non-Muslim group objects, you take a firm stand. I am sure these people will run away..
Also, state the name of the company where this is taking place to let people know. This will shame them. Give your boss' name and email address and you will see how many million emails he will receive including a real "juicy" one from me.