With satisfaction of job acting as a crucial mediating variable in the link between work compensation, career development, and Work Load, this study attempts to examine how these elements affect work motivation at Xyz Aviation Transportation Company. All 130 workers at the Jakarta-based Xyz Aviation Transportation Company, including managers, supervisors, engineers, marketers, administrative staff, and field workers, made up the study's population. The Structural Equation Model and Smart-PLS methodologies are utilized in an explanatory quantitative research design with total sampling (census sampling) as the sample methodology. Finding the influence value of the relationship between each study variable is the anticipated research outcome. Effect Size is a measure of the relationship's effect value between the research variables. The managerial implications, which include recommendations, follow-up, and tactics that company management must implement to establish dynamic working settings and circumstances with high job satisfaction and work motivation, will be prepared once the Effect Size value has been determined. It is anticipated that this study would offer insightful suggestions to the management of Xyz Aviation Transportation Company for developing practical plans to boost worker motivation and job happiness, which will enhance the caliber of services offered by the company.