A Data Warehousing developer designs, constructs, tests, and maintains highly scalable data management systems. They ensure systems meet business requirements and industry practices. They integrate new data management technologies and software engineering tools into existing structures, develop set processes for data mining, data modeling, and data production. They also analyze large data sets to gain insights and apply them to business strategies. They're responsible for data cleansing, data quality, testing, and troubleshooting. They work closely with data architects, data analysts, and other stakeholders to ensure data consistency, security, and accessibility.