Personal engagement with work is the maximum, deliberate and simultaneous use of physical, cognitive and psychological effort in the execution of the individual’s role in his or her work (Kahn, 1990). The subject is relatively new and the way engagement should be operationalized- whether in one or three dimensions – is still a matter of discussion. The purpose of this article was therefore to verify the relationship between the engagement of information technology professionals with their work and the nature of the task, operationalizing the construct in three dimensions: the physical, psychological and cognitive dimension. In addition, this study aimed to verify the concept of engagement on a different field of investigation than the ones employed to date. The survey with 613 subjects and the Exploratory Factorial Analysis enabled the empirical validation of the three dimensions of engagement. Regression Analysis demonstrated a positive relationship between the nature of the task and engagement and also pointed out antecedents for each of the three dimensions of engagement