Is money given to a government employee by a friend whom the employee nominated to perform maintenance work for a government entity considered a bribe?

It is not permissible for an employee to keep any profit, benefit, or discount obtained due to their position; rather, it belongs to the employers, as the employee is merely their agent. However, if the company's selection was not within the employee's scope of work, and their presence had no influence on the selection, and they were merely an intermediary, then there is no harm in what they take.