1. Responsible for ETL of structured data to big data platforms; 2. Real time data online data collection, online data calculation, proficient in business modeling, data warehouse modeling, proficient in ETL design and development, with systematic experience in data quality and data governance; 4. Proficient in Java/Scala, with a deep understanding of JVM, able to troubleshoot and optimize performance at the JVM level, and have participated in algorithm projects, especially preferred;