Enterprise-level information systems (IS) are fundamental to businesses. Unfortunately, implementing these large-scale systems is a complex and risky endeavor. As a result, these initiatives must tap the expertise and active involvement of both the IS department and the enterprise's functional areas. Past studies focusing on IS implementation teams consistently identify the IS department as the source of technical expertise and leadership, while functional department team members are typically relegated to the role of business experts. However, unlike the past, many business professionals are knowledgeable about information technology (IT) and are increasingly capable of contributing to IS implementations from a technical perspective as well as a business perspective. This study examines how IT competence held by both the IS department and the user department stakeholders contributes to user satisfaction with the enterprise-level system implementation. Specifically, this research introduces a theoretically grounded construct, joint IT competence, which emerges when the IS department and user department stakeholders integrate their individually held IT competences. The study's results empirically demonstrate that joint IT competence is a key driver of user satisfaction in enterprise-level IS implementations. Although not as significant as joint IT competence, results show that partner-based leadership between the IS department and user stakeholders also influences user satisfaction with IS implementations.