Senior ETL Developer

Key Responsibilities * Design, develop and maintain SSIS packages for ETL and data integration. * Extract, transform and load data from multiple sources into SQL Server and data warehouses. * Develop and optimize T-SQL queries, stored procedures, functions, views, triggers, CTEs, temp tables and dynamic SQL. * Work with both ETL and ELT approaches. * Handle large data volumes and incremental loads with minimal source-system impact. * Work with CDC, Change Tracking, watermarking or similar frameworks. * Monitor and troubleshoot SSIS packages, SQL Server Agent jobs and data-loading issues. * Perform query tuning, indexing, execution plan analysis and SQL Server performance tuning. * Support staging, data warehouse, data validation and data quality processes. * Build reliable and restartable ETL processes to prevent duplicate or inconsistent data after failures. * Work with business, application, data and reporting teams. Required Skills * Strong Microsoft SQL Server and SSIS experience. * Advanced T-SQL skills. * Strong ETL and ELT experience * Experience in Data Integration and Data Warehousing. * Understanding of Business Intelligence and reporting environments. * SQL Server Agent and production job monitoring. * Query tuning, indexing and execution plans. * Large-volume and incremental data processing. * CDC, Change Tracking or watermarking. * SSIS troubleshooting, deployment and error handling. * Data validation and quality checks. * Experience with Power BI or similar BI tools. * General programming knowledge; C#/.NET is a plus. * Strong analytical and problem-solving skills.