The psychology of sustainability claims for a new kind of organization that promotes
employee well-being as well as the search firm’s performance. In sustainable and healthy
organizations, tasks are characterized by their significance, variety, autonomy, and feedback from
the job. This way of organizing employees’ activities motivates them and can affect their well-being.
However, due to a series of age-related physical and cognitive changes, older workers must constantly
adapt to task demands to continue working and maintain their productivity. This research explores
the moderating role of selection, optimization, and compensation strategies in the relationship
between task characteristics (significance, variety, autonomy, and feedback from the job) on the one
hand, and job satisfaction and organizational citizenship behaviors on the other. This study was
carried out using a lagged design over a three-month interval. Participants were 183 Spanish workers
aged between 45–55 years who completed two questionnaires (Time 1 and Time 2). The results
support the moderating role of the optimization and compensation in the relationship between task
characteristics and employee well-being. Elective selection and loss-based selection strategies do
not moderate the relationship. These findings underscore that people who are actively involved in
optimization and compensation strategies can age successfully at work. The implications of this
study to improve the orientation practices of older workers are discussed.