Sr. SQL Developer

Job Summary The Senior Database Application Associate having 7+ Years is responsible for analysing, debugging, and optimizing complex SQL queries used in reporting environment. This role involves hands-on troubleshooting, SQL performance tuning, improving query runtime and collaboration with cross-functional teams to ensure the stability, scalability, and reliability of mission-critical business applications. The ideal candidate brings strong technical expertise, problem-solving skills, and experience managing production systems in a fast-paced environment. Key Responsibilities Database Development & Optimization Develop, debug, and maintain SQL queries, stored procedures, triggers, packages, and functions. Perform database performance tuning—index optimization, query rewriting to reduce execution time, and resource utilization improvements. Support schema design, data modelling, and database architecture improvements. Diagnose and resolve complex application and database-related issues. Analyse large and complex SQL queries used in reports by identifying performance issues in joins, filters, CTEs, functions, indexes, and data model design. Ensure optimized SQL returns the same data as the original queries. Maintain accurate technical documentation, runbooks, and knowledge articles. Cross-functional Collaboration Work closely with application developers, system engineers, QA teams, and business stakeholders. Provide technical guidance and mentorship to junior team members. Work with team members to validate logic and resolve data or performance issues. Support unit testing, QA testing, and user acceptance testing. Share technical recommendations for improving query performance and structure with the team. Ensure compliance with data governance, security, and backup policies. Required Qualifications Having 7+ Years of Strong expertise in SQL (SQL Server— customize as needed). Expertise in joins, subqueries, CTEs, window functions, aggregations. Strong experience in analysing execution plans and tuning queries. Understanding of indexing, partitioning, statistics, and database performance. Experience troubleshooting and tuning large, complex queries and database operations. Strong analytical, communication, and documentation skills. Good communication skills and ability to articulate technical details clearly. Good to Have Knowledge/Experience with Cognos, Power BI, Tableau, or other reporting tools. Understanding of BI concepts, metadata layers, and reporting models.