Cross-sectional, longitudinal, and experimental research demonstrates that subjective well-being (e.g., positive emotions, life satisfaction) relates to, precedes, and leads to employee success on numerous work-related outcomes. We extend these findings by considering how organizations might improve worker well-being. Accordingly, we propose the Worker Well-Being Continuous Improvement Framework with three phases: (1) an initial phase with a pretest assessment of worker well-being; (2) a test phase, where a specific positive change to improve worker well-being is implemented; and (3) a concluding phase that administers a posttest assessment to examine the effectiveness of the change. We also discuss three important considerations to address when implementing the framework: (1) measuring employee well-being, (2) building thriving work cultures, and (3) deploying positive activity interventions. Consequently, organizations can rapidly test evidence-based practices to select the most relevant and effective positive changes for their employees.