Self-Organization of project teams is one of the six characteristics identified by Takeuchi; Nonaka (1986) that provide companies with flexibility and speed in the development of products and solutions. Schwaber (1997) incorporated this feature by creating a new approach to software development process which he called Scrum, one of the most used agile methods in the world. So, the objective of this research was to understand the self-organization in a Scrum Team (ST), in the light of the Systemic-Complex Paradigm (SCP), from the principles of Recursiveness, Dialogic and Hologrammaticity. This research involved the understanding of self-organization in a ST in light of the SCP in a large Information Technology (IT) company. A qualitative methodological approach was used through an action research. As a result, people's relationships were analyzed and the influence of the Environment (external to the team), the Whole (team), and the Parts (team people) were understood, where 31 factors were found that influence and promote self-organization on a ST. From this, the Scrum relationship with the SCP was established and management contributions were suggested for companies that have self-organizing ST or that wish to implement them.