Does paying social security in this company mean working in this company?

Legal analysis: those who have not signed a labor contract but have actually started working in the unit and paid social security belong to the work unit. If the employer fails to conclude a written labor contract with the employee within one year from the date of employment, it shall be deemed that the employer has concluded an open-ended labor contract with the employee.

Legal basis: Article 10 of the Labor Contract Law of People's Republic of China (PRC) establishes labor relations, and a written labor contract shall be concluded. If a labor relationship has been established and a written labor contract has not been concluded at the same time, a written labor contract shall be concluded within one month from the date of employment. If the employer and the employee conclude a labor contract before employment, the labor relationship shall be established from the date of employment.