An Amazon Redshift developer is responsible for designing, building, and managing data warehousing solutions using Amazon Redshift. Their duties include data modeling, ETL (Extract, Transform, Load) development, performance tuning, and managing data workflows. They leverage Redshift's capabilities for large-scale data analysis and ensure data integrity and security. They also troubleshoot issues, optimize system performance, and collaborate with other teams to integrate systems. The role requires expertise in SQL, data warehousing concepts, and AWS cloud services. They play a pivotal role in making data-driven decisions by providing insightful data analytics and reports.