Abstract—The study aimed to investigate the rank and file employees’ job satisfaction in relation to their managers’ leadership styles. The researcher attempted to answer the following questions: (1) What is the leadership style of the managers in Business Process Outsourcing firms in Pasig City, Philippines? (2) How do the respondents assess the leadership style of their managers? (3) How do the respondents assess the level of job satisfaction in terms of Extrinsic and Intrinsic aspects? And (4) Is there a relationship between the manager’s leadership style and the employee job satisfaction as assessed by the respondent? Descriptive research method was used in this study. Two Hundred Seventy rank and file employees of selected BPO firms in Pasig City, Philippines participated in this study. Majority of the respondents (58.2%) were females, 139 in total. The highest age group of respondents (36.8%) includes those between 21-25 years and the smallest one those between 18-20 years (2.5%). Majority of the respondents had stayed in their respective companies between 1-2 years of work experience (74.5%) and only 29 have reached 5 years (12.1%). All the hypotheses were tested using the multiple regression analysis. All the null hypotheses were rejected. Two types of leadership styles, namely, transactional and transformational were found to have direct relationships with employees’ job satisfaction. Passive Avoidant Leadership was the most prevalent Leadership Style in Business Process Outsourcing firms.