Senior Oracle SQL & PL/SQL Developer

+91-934**-***** **********************@*****.***

Senior SQL & PL/SQL Developer with 5.5+ years of experience in Oracle Database Development, MS SQL Server, Data Warehouse, ETL Development, Production Support, and Database Performance Tuning. Expertise in designing scalable database solutions using SQL, PL/SQL, Stored Procedures, Packages, Functions, Triggers, Query Optimization, and Data Integration. Experienced in Banking and Enterprise Data Warehouse projects with Agile methodology. Databases: Oracle 12c/19c, MS SQL Server 2019

Programming: SQL, PL/SQL

Data Warehouse: ETL, Data Integration, Data Validation, Data Modeling Database Objects: Stored Procedures, Packages, Functions, Triggers, Views, Indexes, Sequences, Synonyms Performance: Query Optimization, Execution Plans, Index Tuning, Explain Plan, Bulk Collect, Ref Cursor Tools: SQL Developer, Jira, TFS, AutoSys (Basic)

Methodologies: Agile, Production Support, SDLC

Senior Software Engineer Clover Info Tech Sep 2025 – Jun 2026 Software Engineer (Client: Excelsoft Technologies) Oct 2024 – Feb 2025 Software Engineer Ivaan Technologies Nov 2020 – Apr 2025 PROJECTS

Enterprise Data Warehouse

Domain: Data Warehouse

Developed ETL processes using SQL and PL/SQL.

Performed Data Validation, Cleansing and Transformation. Built optimized queries for reporting.

Improved data quality and database performance.

Banking Account Management System

Domain: Banking

Developed scalable PL/SQL modules for account creation and transaction processing. Created Procedures, Packages, Triggers and Functions. Optimized SQL performance using Indexes and Execution Plans. Implemented Exception Handling and Transaction Management. Supported production issues and database enhancements. EDUCATION

Bachelor of Commerce (B.Com) 2017 – 2020

Udaya College of Arts and Science

ESAKKIMUTHU MARIYAPPAN

PROFESSIONAL SUMMARY

SKILLS

PROFESSIONAL EXPERIENCE

Develop and maintain Data Warehouse ETL solutions using SQL and PL/SQL. Build optimized SQL queries for reporting and analytics. Perform data validation, transformation, and loading activities. Improve query performance and ensure data quality. Developed MS SQL Server solutions for E-Marking & Assessment platform. Created automated database solutions for scoring and reporting. Improved database performance and optimized SQL scripts. Designed and developed PL/SQL Procedures, Packages, Functions and Triggers. Optimized SQL queries using Execution Plans, Indexes and Performance Tuning. Provided Production Support and resolved database issues within SLA. Worked closely with application teams for backend development and deployments.

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