The aim of this study is to examine the influence of interpersonal communication, working motivation and transformational leadership to teachers' job satisfaction either individually or jointly. Variables of interpersonal communication, working motivation and transformational leadership serve as independent variables while the dependent variable is teacher's job satisfaction. The study was conducted on proportional randomly selected 116 non-permanent teachers of private vocational high school in the city of Jambi, Indonesia. Using mix method, sequential explanatory design is applied where quantitative come first. The study both quantitatively and qualitatively reveals that there is a positive significant relationship among variables under the following distribution of coefficient of correlation: interpersonal communication to teacher's job satisfaction = 0.942, working motivation to teacher's job satisfaction = 0.768, transformational leadership to teacher's job satisfaction= 0.567 and when tested together it produces coefficient of correlation = 0.800 indicating the existence of other 20% variables not including in the model affecting job satisfaction within the private vocational highs school teachers' working environments.