Personality-job fit in terms of the Big Five across the professional lifespan

Finding a job that fits is widely recognized as important for personal fulfillment and professional success. Despite the long history of person-environment fit research, surprisingly little is known about person-job fit in terms of basic personality traits. This study examined three basic tenets of fit theory regarding personality-job fit: Fit (1) is pleasurable, (2) regulated by individuals, and (3) changes over time. We hypothesized that personality-job fit would be associated with higher subjective well-being (RQ1), predict less occupational change (RQ2), and vary across the professional lifespan (RQ3). Fit was conceptualized as “broad congruence” between individuals’ Big Five trait levels and expert-rated trait demands of their occupations. We used nationally representative data from German jobholders (N = 18,712–30,883). Multilevel polynomial regression and response surface analysis showed no significant congruence effects but some interactions: More extraverted and open individuals felt better and were less likely to leave their jobs when these traits were strongly demanded by their work, though these outcomes were not optimized at exact personality-job fit. Additionally, personality-job fit improved over time, showing a linear increase across the lifespan. These findings emphasize studying fit theories in detail and considering individuals’ personalities, such as being communicative or original, in career choice.

Plain language summary

Is it important to have a job that matches your personality? Our personality shapes how we think, feel, and behave in many parts of life, including work. The Big Five personality traits (extraversion, agreeableness, conscientiousness, emotional stability, and openness) describe these patterns. Finding a job that suits your personality is often thought to be important for being happy and making good career choices. For example, being outgoing may help a salesperson succeed but may be less useful for an archivist. In this study, we asked whether people whose personality match the demands of their job (personality-job fit) feel happier and stay in their jobs longer. We looked at data from more than 30,000 working adults in Germany and compared their personalities to what their jobs typically require. Our study improves on earlier research by using a large sample, many different occupations, and advanced analysis methods. Our results suggest that people who were more extraverted and open to experiences felt better and stayed longer in their jobs when their jobs also called for these traits. However, those whose personality perfectly aligned with their job were not necessarily the happiest or most likely to stay. We also found that the fit between a person’s personality and their job improved as they aged and advanced in their career. This suggests that fit is not fixed – people can adapt their personalities or choose roles that better suit them over time. Our research shows that a perfect match between personality and job is not necessarily the most beneficial. Still, based on our findings, considering personality traits - particularly extraversion and openness - when choosing a career or hiring people is important. Future research could look at how people shape their day-to-day work to fit who they are, for example, by choosing projects that let them be creative or arranging their schedule to match their energy levels.