A Data Integrity Developer is responsible for ensuring the accuracy, consistency, and reliability of data in a system or database. They design, implement, and manage data integrity validation rules, error detection and correction processes, and data standardization protocols. They also develop strategies for data backups, recovery, and archiving. They collaborate with data analysts and other IT professionals to identify data inconsistencies and implement solutions. They may also be tasked with creating data models, database designs, data access and table maintenance codes. Their work is crucial in maintaining the quality and security of data, thus supporting informed decision-making.