Dreams about being fired or facing job-related changes often reflect feelings of insecurity, fear of failure, or concerns about your current work situation. In your dream, being fired along with your coworkers may symbolize a sense of vulnerability or anxiety about your position in your professional life, especially as you mentioned that you are among the junior members of the team.

The fact that one coworker went to a "very bad company" and another to a competitor at a worse position may suggest your subconscious is highlighting fears of poor outcomes or undesirable paths in your career. This could indicate a concern about the future and the competition in your field.

Staying at the same firm but being sent to work in the basement may represent feelings of being sidelined, undervalued, or restricted in your current role. The basement often symbolizes a place of limitation or a lack of recognition. It might reflect worries about being overlooked, not receiving the acknowledgment you deserve, or feeling stuck in your current situation.

Consider reflecting on your current job satisfaction and whether there are aspects of your work life that you feel need improvement. This dream could be a prompt to evaluate your career goals and take proactive steps toward achieving them, whether that means seeking new opportunities, improving your skills, or communicating your aspirations to your superiors.