This research investigates the influence of operational discipline, job satisfaction, and professional competence on employee performance within the aviation sector, focusing specifically on Airport Operational Support Services. A quantitative causal-explanatory method was employed, using Structural Equation Modeling with the Partial Least Squares (SEM-PLS) technique. The sampling process applied a stratified random method, involving 338 participants from different job levels. The findings reveal that both operational discipline and professional competence have a significant and positive impact on employee performance. Conversely, job satisfaction was found to have a negative effect. Theoretically, this study deepens the understanding of the interplay between these variables within high-risk work environments. On a practical level, it offers strategic insights for improving performance through targeted initiatives in discipline and competency enhancement. The study also provides a valuable contribution to the formulation of more comprehensive and contextually appropriate human resource management strategies in the airport support services industry.
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