This study examines how multiple dimensions of employee wellbeing influence post-onboarding experience in technology companies and assesses the mediating role of organizational commitment. Grounded in the PERMA framework, the JD-R model, and the three-component commitment theory, the research employs a quantitative design using 267 valid responses analyzed through PLS-SEM. Findings indicate that all five wellbeing dimensions physical, psychological, social, occupational, and financial positively affect organizational commitment, with occupational wellbeing showing the strongest impact. Organizational commitment is the most powerful predictor of post-onboarding employee experience and significantly mediates all wellbeing–experience relationships. No differences were found across gender, age, or tenure groups. The study highlights wellbeing as a critical foundation that strengthens commitment and enhances early employee experience in the tech industry..