<p>Work design can facilitate or affect the well-being and productivity of workers. In this line, the present study focused on knowing the relationships between aspects of work design and two factors related to the well-being of workers such as engagement and work addiction. The design of the work, the engagement, and the addition of the work in 44 employees of public and private companies were evaluated. The results showed significant correlations between social support, autonomy, decision making, knowledge characteristics and some dimensions of engagement; As well as, relations between some dimensions of work addiction with the initiated and received interdependence, the meaning of the task, the information processing, the variety of the task, and the solution of problems. Additionally, the linear regressions showed that the social interdependence initiated and the processing of information explains 36% of the variance of work addiction. The implications of these findings for the protection of workers' well-being are discussed.</p>