There is no universal principal theory about employee performance. The effectiveness is an important foundation for how organizations perform with their management, development, and stimulation to their employees. People management has a noteworthy influence on performance and employees' comportment in relation to the organizational presentation can explicit itself in three different ways; task execution, organizational citizenship accomplishment (Soft performance) and workplace divergent behavior. [1]Recently, most of the companies or institutions are fully conscious about employee’s performance or about to discover the customs through which high level of employee’s act can be accomplished is becoming one of the intent aspects to any organization progress. [2]Employee Performance Management is about to bring into a line of the administrative goals with the employees' approved procedures, assistance, proficiency necessities, development strategies and the distribution of consequences. [3]Manpower performance can be amplified by putting efforts to factors that boost the employees’ motivational level, creativity, job gratification, and coziness workstation atmosphere, etc. [2] There are lots of factors that influence on employee performance and the main topic of the study revolves around those variables. This study will focus on the impact of leadership, training, motivation, organizational culture and working environment on the employees’ performance in different types of sectors like government, private or semi-government sector in Bangladesh. It will also highlight how these variables affect the performance either positively or negatively.