The article is dedicated to the analysis of modern trends in the development of enterprise application architecture under conditions of distributed teamwork. The relevance of the study is determined by the rapid expansion of geographically dispersed software teams, the intensification of inter-team dependencies, and the increasing complexity of architectural governance in large-scale digital systems. The novelty of the research lies in the interpretation of enterprise architecture not merely as a technical framework but as a coordination regime shaped by scaling dynamics, ownership structures, platform engineering practices, and modernization trajectories. The work describes structural transformations associated with microservices adoption, legacy system modernization, platform consolidation, and remote collaboration. Special attention is paid to the relationship between modularization and coordination density, as well as to the tension between autonomy and synchronization in distributed environments. The goal of the study is to identify systemic regularities that determine architectural evolution in distributed enterprise systems. Comparative and analytical methods were applied to synthesize contemporary research findings. The conclusions characterize architectural development as cyclical and governance-dependent. The article will be useful for enterprise architects, IT managers, and researchers studying large-scale distributed software systems.