Thriving at work, characterized by sustained vitality and continuous learning, is a critical psychological state for personnel navigating high-risk rescue environments. Drawing on the Socially Embedded Model of Thriving (SEMT), this study investigates gratitude at work as a key undefined personnel resource that fosters thriving at work through the mediating mechanism of meaningful work. Furthermore, we hypothesized that a toxic contextual environment, specifically abusive supervision, would act as a boundary condition hindering grateful individuals from deriving meaningfulness from their work. Using a cross-sectional design, data were collected from 238 first responders across the Fire and Rescue Department, the Disaster Management Agency, and the National Search and Rescue Agency in Indonesia. Multiple regression analyses and moderated mediation tests were conducted using PROCESS for RStudio 4.3.1. The results supported the mediation model, showing that meaningful work significantly mediates gratitude and thriving at work. However, contrary to expectations, abusive supervision did not moderate the gratitude–meaningful work relationship, nor did it moderate the overarching indirect effect on thriving at work. These findings extend the thriving literature within high-stress occupations, demonstrating the robust capacity of gratitude and meaningful work to sustain thriving among emergency personnel regardless of leadership style.
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