Shifting From Reactive to Proactive at Glassdoor | Zakariah Siyaji | Shift Left Data Conference 2025

As Glassdoor scaled to petabytes of data, ensuring data quality became critical for maintaining trust and supporting strategic decisions. Glassdoor implemented a proactive, “shift left” strategy focused on embedding data quality practices directly into the development process. This talk will detail how Glassdoor leveraged data contracts, static code analysis integrated into the CI/CD pipeline, and automated anomaly detection to empower software engineers and prevent data issues at the source. Attendees will learn how proactive data quality management reduces risk, promotes stronger collaboration across teams, enhances operational efficiency, and fosters a culture of trust in data at scale.