This paper attempts to move away from portraying service and knowledge work as opposite trends in advanced economies. Instead, it maintains that a closer look at the changing nature of work will highlight the need to rearrange our aggregate occupational data so as to include special categories for a hybrid form: the techno-service sector. After presenting a typology of occupations based on the degree to which knowledge and service elements are intertwined, the paper analyze the work of Enterprise Resource Planning [ERP] implementers as a key example of techno-service work. It highlights the practices of ‘reverse customization’ and ‘translation’ performed by the implementers, which effectively combine service and knowledge work. The paper explains the growing inter-dependency of social and technical skills by the shift from the sale of a product to the sale of a process. This shift underpins the growing penetration of professional work into the heart of the industrial enterprise.