<![CDATA[Abstract: This study aims to analyze the effect of work discipline, work environment, and transformational leadership style on employee performance through job satisfaction as an intervening variable at the Public Works and Spatial Planning Office (PUPR) of Padang City. This study employed a quantitative approach. The population consisted of 90 employees, and a saturated sampling technique was used, whereby the entire population was included as the research sample. Data were analyzed using the Partial Least Squares (PLS) method with the assistance of SmartPLS 3.0. The results showed that work discipline had a positive but insignificant effect on job satisfaction, while the work environment and transformational leadership style had positive and significant effects on job satisfaction. Work discipline and transformational leadership style had positive and significant effects on employee performance, whereas the work environment had a negative and significant effect on employee performance. Job satisfaction had a positive and significant effect on employee performance. Furthermore, job satisfaction did not significantly mediate the effect of work discipline on employee performance, but it positively and significantly mediated the effects of the work environment and transformational leadership style on employee performance. These findings indicate that improving employee performance requires a supportive work environment, effective transformational leadership, and increased employee job satisfaction. Keywords: work discipline; work environment; transformational leadership; job satisfaction; employee performance Abstrak: Penelitian ini bertujuan untuk menganalisis pengaruh disiplin kerja, lingkungan kerja, dan gaya kepemimpinan transformasional terhadap kinerja pegawai melalui kepuasan kerja sebagai variabel intervening pada Dinas Pekerjaan Umum dan Penataan Ruang (PUPR) Kota Padang. Penelitian ini menggunakan pendekatan kuantitatif. Populasi dalam penelitian ini berjumlah 90 pegawai, dengan teknik pengambilan sampel menggunakan sampling jenuh, sehingga seluruh populasi dijadikan sampel penelitian. Analisis data dilakukan menggunakan metode Partial Least Square (PLS) dengan bantuan aplikasi SmartPLS 3.0. Hasil penelitian menunjukkan bahwa disiplin kerja berpengaruh positif namun tidak signifikan terhadap kepuasan kerja, sedangkan lingkungan kerja dan gaya kepemimpinan transformasional berpengaruh positif dan signifikan terhadap kepuasan kerja. Disiplin kerja dan gaya kepemimpinan transformasional berpengaruh positif dan signifikan terhadap kinerja pegawai, sedangkan lingkungan kerja berpengaruh negatif dan signifikan terhadap kinerja pegawai. Kepuasan kerja berpengaruh positif dan signifikan terhadap kinerja pegawai. Selanjutnya, kepuasan kerja tidak mampu memediasi secara signifikan pengaruh disiplin kerja terhadap kinerja pegawai, tetapi mampu memediasi secara positif dan signifikan pengaruh lingkungan kerja serta gaya kepemimpinan transformasional terhadap kinerja pegawai. Hasil penelitian ini menunjukkan bahwa peningkatan kinerja pegawai perlu didukung oleh lingkungan kerja dan kepemimpinan transformasional yang baik serta peningkatan kepuasan kerja pegawai. Kata kunci: disiplin kerja; lingkungan kerja; kepemimpinan transformasional; kepuasan kerja; kinerja pegawai.]]>
