Key Developer Roles and Organizational Coupling in Microservices: A Longitudinal Analysis

• URL: http://arxiv.org/abs/2604.25804v1
• Date: Tue, 28 Apr 2026 16:12:39 GMT
• Title: Key Developer Roles and Organizational Coupling in Microservices: A Longitudinal Analysis
• Abstract summary: This study investigates how different developer roles contribute to organizational coupling (OC) in a large-scale system.<n>A repository mining analysis of GitHub data, including commits and issue and pull request interactions, is conducted.<n>The results show that Connectors are consistently associated with higher levels of OC, while the co-occurrence of multiple roles within the same developer further amplifies coupling effects.
• Score: 2.4996852098948144
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: Microservice-based systems impose significant organizational coordination challenges, yet the role of individual developers in shaping organizational coupling (OC) remains underexplored. Prior work largely focuses on structural architectural aspects, leaving gaps in understanding how developer roles influence coordination dynamics over time. This study investigates how different developer roles contribute to OC in a large-scale microservices system. The analysis focuses on three key roles, namely Jacks, representing broad knowledge holders, Mavens, representing deep specialists, and Connectors, representing organizational bridges. A longitudinal repository mining analysis of GitHub data, including commits and issue and pull request interactions, is conducted to operationalize OC and quantify its evolution over time. The results show that Connectors are consistently associated with higher levels of OC, while the co-occurrence of multiple roles within the same developer further amplifies coupling effects. In contrast, Jacks and Mavens exhibit more localized and role-specific influences. These findings indicate that OC in microservices is primarily a role-driven phenomenon rather than an inevitable structural property, providing a foundation for role-aware organizational design and targeted decoupling strategies.

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