Strong software product development competencies, including customer competence, technical competence and managerial competence, have been identified as critical factors in crafting product superiority. However, given the great degree of uncertainty, software developers must continually cope with extremely rapid changes that demand innovative technological and managerial responses. Based on dynamic capability theory and strategic organizational flexibility, this study developed a theoretical model to explore the effect of dynamic capability and technology flexibility on product development competencies and product superiority. Data were collected from 112 business executives from packaged software firms in Indonesia. Partial Least Squares (PLS) analysis supports the study’s hypotheses that when dynamic capability and technology flexibility are introduced to the model, the relationship between a software firm’s functional competencies and product superiority becomes insignificant. The findings can provide guidelines for software developers to cultivate dynamic capability and pursue technology flexibility to craft superior software products.