The purpose of this study is to analyze the effect of leadership behavior on employee performance mediated by work engagement in the HR&GA Division of PT XYZ. This research was conducted from February to April 2021 with a population of 82 people where the entire population was sampled (saturated sampling). Data analysis using Structural Equation Modeling (SEM) method using SmartPLS 3.3.3 for windows. The results of the research are leadership behavior has a positive and significant effect on work engagement, leadership behavior has a positive but not significant effect on employee performance, work engagement has a positive and significant effect on employee performance, and work engagement has a positive and significant effect on mediating leadership behavior on employee performance. To improve employee performance, companies need to improve leadership behavior by focusing more on the dimensions of relationship-oriented behavior and task-oriented behavior and work engagement with more focus on the vigor dimension

Keywords : Leadership Behaviour, Work Engagement, Employee Performance