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This study aims to examine the effect of Perceived Organizational Support on Job Performance through Personality Traits, Self-Efficacy, and Job Satisfaction, with Work-Life Balance serving as a moderating variable among employees of PT. Chinli. The study employed a quantitative approach using descriptive and verificative research methods. The population consisted of 500 employees of PT. Chinli, while a sample of 222 respondents was determined using the Slovin formula with a simple random sampling technique. Data were collected through a questionnaire using a five-point Likert scale. Data analysis was conducted using Structural Equation Modeling–Partial Least Squares (SEM-PLS) with SmartPLS version 4. The results indicate that Perceived Organizational Support has a positive and significant effect on Personality Traits, Self-Efficacy, and Job Satisfaction. Personality Traits have a positive and significant effect on Self-Efficacy and Job Satisfaction. Self-Efficacy has a positive and significant effect on Job Satisfaction, while Job Satisfaction has a positive and significant effect on Job Performance. Furthermore, Perceived Organizational Support has a positive effect on Job Performance through the serial mediation of Personality Traits and Job Satisfaction, as well as through the serial mediation of Self-Efficacy and Job Satisfaction. In addition, Work-Life Balance positively moderates the relationship between Job Satisfaction and Job Performance, strengthening the positive effect of job satisfaction on employee job performance