A Data Lineage Developer is responsible for creating, implementing, and maintaining data lineage systems. These systems track data from its origin through its lifecycle, providing visibility into data's origins, movements, transformations, and quality. They ensure data integrity and reliability, enabling businesses to make data-driven decisions confidently. This role often involves working with data governance teams to meet regulatory requirements. They also troubleshoot data flow issues, develop data models, and assist in data-related risk assessment. Additionally, they may design and implement tools and methodologies for data lineage, contributing to the overall data management strategy of an organization.