Human resources play a crucial role in achieving a company's success, including at PT Indah Kiat Karawang Tbk, which operates in the paper and packaging manufacturing sector. An interesting phenomenon has emerged regarding employee job satisfaction, which is influenced by several factors, such as the work environment and workload. Previous research has shown varied results, thereby creating a research gap concerning the impact of these two variables on job satisfaction. This study aims to analyse the influence of the work environment and workload on employee job satisfaction at PT Indah Kiat Karawang Tbk. A quantitative method was employed, with a population consisting of 68 employees from the security division, who also served as the saturated sample. Data were collected through a survey and analysed using multiple linear regression. The results indicate that, partially, the work environment has a significant positive effect on job satisfaction. Conversely, the workload variable shows a significant negative effect on job satisfaction. Overall, the work environment and workload contribute 50.3% to job satisfaction, while the remaining 49.7% is influenced by other factors not examined in this study.