In this paper we analyse how the increased use of open source software in companies affect employed programmers’ work, which we theorize as part of a larger secularisation process. We have studied both companies based on a more traditional proprietary model who are becoming open source oriented, and SMEs built around open source business concepts. This change results in a need for professional programmers to re-interpret open source within a new business oriented context. We study what kind of strategies programmers develop to cope with these contradictory systems and how it changes work roles and programmers’ approaches towards open source community work.