In this study, the security guard selection model was developed with game theory which is a part of operations research. Game theory is grouped into 2 as dynamic and static. Among themselves, they are also expressed as dynamic or static games under full information and as dynamic or static games under incomplete information. In this practice, there is a problem regarding the recruitment of security guards by a security company. In practice, job applications of security guard candidates were received with the job application form. With this form, necessary numerical data were obtained. With these numerical data, the players' earnings matrices were found. A solution is made by modeling the game tree with the players who have a winning matrix. In the first chapter, the theoretical part of human resources management is explained. In the second part, management is mentioned. In the third chapter, Mavi Akdeniz Güvenlik’s job ad application? and the practice of hiring security guards are analyzed. In the conclusion and evaluation section, the signaled game tree with a perfect Bayesian balance has been evaluated in detail to find out whether security candidates who apply for a job in a security company will be recruited or not.