<![CDATA[Abstract. The increasing number of working students has created dual-role demands that may reduce work effectiveness due to work–study conflict. One psychological factor that may help maintain job performance is grit. This study aimed to provide empirical evidence for organizations regarding the importance of grit as a non-cognitive characteristic in sustaining the job performance of working students. Using a quantitative correlational design, this study examined the influence of grit through its two dimensions perseverance of effort (PE) and consistency of interest (CI) on the job performance of working students in Bandung, Indonesia. A total of 116 participants were recruited using convenience sampling. Data were collected through an online survey using the Grit-O Scale (α = .805) and the Individual Work Performance Questionnaire (IWPQ) (α = .779), and analyzed using multiple linear regression. The F-test indicated that grit significantly predicted job performance, explaining 35.7% of its variance (F = 31.373 ; p < .001). Perseverance of effort showed a significant positive effect (t = 7.848 ; p < .001), whereas consistency of interest showed a significant negative effect (t = −4.561 ; p < .001). These findings suggest that perseverance of effort is the strongest contributor to job performance, highlighting the importance of fostering persistence and resilience among working students. Abstrak. Fenomena mahasiswa yang bekerja memicu konsekuensi beban ganda yang berpotensi menurunkan efektivitas kerja akibat adanya work-study conflict. Salah satu faktor psikologis yang diduga berperan mempertahankan kinerja kerja adalah grit. Penelitian ini bertujuan mendapatkan data empirik bagi perusahaan dalam memahami pentingnya karakter non-kognitif (grit) dalam mempertahankan kinerja pada mahasiswa pekerja. Penelitian kuantitatif dengan desain korelasional ini menguji pengaruh grit melalui dimensi perseverance of effort (PE) dan consistency of interest (CI) terhadap job performance mahasiswa pekerja di Kota Bandung. Menggunakan teknik convenience sampling, diperoleh sampel sebesar 116 responden. Data dikumpulkan secara survey online menggunakan alat ukur Grit-O Scale (α = 0,805) dan Individual Work Performance Questionnaire (IWPQ) (α = 0,779), kemudian dianalisis menggunakan regresi linear berganda. Hasil uji F menunjukkan grit berpengaruh signifikan secara statistik terhadap job performance 35,7% (F=31.373; p < 0,001), dengan perseverance of effort berpengaruh positif signifikan 23,9% (t =7,848 ; p < 0,001), consistency of interest berpengaruh negatif signifikan 1,86% (t =-4,561 ; p < 0,001). Temuan ini mengindikasikan ketekunan usaha menjadi aspek grit yang paling berkontribusi terhadap peningkatan job performance mahasiswa pekerja. Oleh karena itu, pengembangan kapasitas individu untuk tetap gigih dan bertahan menghadapi hambatan menjadi faktor penting mendukung performa kerja mahasiswa yang berperan sebagai pekerja dan mahasiswa.]]>
