This study aims to explain the effect of career development and Leader-Member Exchange (LMX) on employee performance with motivation as an intervening variable for PDAM Kota Padang employees. The population of this study were employees of PDAM Kota Padang, with a total sample of 161 respondents. The analysis technique used in this study is mediation regression analysis. The results showed that career development and Leader-Member Exchange had a positive and significant effect on employee performance. Career development, Leader-Member Exchange, and work motivation have a positive and significant effect on work motivation. Motivation becomes mediation in the influence of career development on employee performance. Motivation becomes mediation in the influence of Leaders Exchange on the performance of employees of PDAM Kota Padang.