Sherin

Senior PL/SQL and Tableau Developer with 9+ years of experience in Oracle Database development, PL/SQL programming, data visualization and business intelligence, expertise in Tableau and SQL has driven successful dashboard development projects and SQL optimization, ETL development, performance tuning, and enterprise data migration. Experienced in designing scalable database solutions, developing high-performance stored procedures, optimizing complex SQL queries, and supporting mission-critical applications across Oracle, SQL Server, and PostgreSQL environments. Strong expertise in Agile development, database performance tuning, ETL implementation using SSIS, version control with Git, and cross-functional collaboration to deliver secure, reliable, and scalable database solutions.

Senior PL/SQL Developer at UST Global Pvt Ltd (2022-01 – 2024-04)

• Developed and optimized Oracle PL/SQL procedures, packages, functions, and triggers supporting enterprise database applications.
• Review and optimize existing Tableau reports and dashboards.
• Designed and deployed interactive executive dashboards using Tableau desktop.
• Develop and maintain Tableau reports and dashboards.
• Wrote complex SQL queries and custom calculated fields to track key performance indicators.
• Reduced report generation time by 40% through SQL query optimization, execution plan analysis, and indexing strategies.
• Designed scalable database components to support evolving business requirements and improve application performance.
• Conducted PL/SQL code reviews, resolved production defects, and improved code quality across multiple environments.
• Managed database source code using GitHub, maintaining synchronization across Development, QA, and Production environments.
• Structured database migration scripts using Bitbucket to streamline parallel sprint deployments and reduce deployment conflicts.
• Diagnosed complex database issues, improving system reliability and minimizing production downtime.
• Executed unit testing, debugging, and validation to ensure high-quality database releases.
• Collaborated with front-end, backend, and QA teams within Agile Scrum environments to deliver database enhancements.
• Recommended database performance improvements through execution plan analysis and index optimization.

Oracle PL/SQL Developer at Tech Spine Systems Pvt Ltd – Practice Suite (2015-01 – 2020-02)

• Developed SQL and PL/SQL programs supporting enterprise-scale data migration initiatives.
• Built and maintained stored procedures, packages, functions, triggers, and database objects aligned with business requirements.
• Created reusable PL/SQL programs using cursors, exception handling, and dynamic SQL for complex data processing.
• Designed database indexes that eliminated unnecessary full-table scans and improved SQL query performance.
• Partnered with application development teams by delivering optimized stored procedures and backend database solutions.
• Participated in performance tuning initiatives to eliminate bottlenecks in high-volume database environments.
• Supported database deployment, debugging, testing, and production issue resolution.

Oracle PL/SQL Developer at Emsyne – Muthoot Systems & Technologies (2012-11 – 2014-12)

• Designed and developed Oracle database objects including tables, views, procedures, packages, functions, and triggers.
• Developed PL/SQL programs for automated data loading, logging, and exception handling.
• Optimized SQL statements and PL/SQL blocks using execution plans, SQL hints, and query rewriting techniques.
• Implemented dynamic SQL, ref cursors, table functions, and cursor-based programming for enterprise applications.
• Developed backend database modules supporting reporting and management decision-making systems.
• Utilized Oracle development tools including Toad and PL/SQL Developer to accelerate database development.

Bachelor of Engineering in Computer Science and Engineering – Karunya University, Coimbatore (2007 – 2011)