A Google BigQuery developer designs, builds, and manages BigQuery solutions. They handle large datasets, implement data warehousing, and conduct data analysis. By writing SQL queries, they extract actionable insights from data. They also optimize BigQuery performance and costs, ensuring data accuracy and security. They often create data pipelines, automate data flows, and integrate BigQuery with other Google Cloud services and external platforms. Their role also involves troubleshooting and resolving issues related to data processing. They collaborate with data scientists, analysts, and other stakeholders, helping them leverage BigQuery capabilities for data-driven decision making.