J Arunbabu

Results-driven SQL Developer and Database Professional with 8+ years of experience in SQL Development, Database Management, ETL Processes, Data Analysis, and Enterprise Reporting for large-scale enterprise systems. Hands-on experience in Data Extraction, Data Transformation, Data Cleaning, Data Validation, Data Profiling, Data Slicing, Data Integration, and Data Migration using MS SQL Server, PostgreSQL, and IBM DB2. Strong expertise in writing Complex SQL Queries, Stored Procedures, Functions, Views, Triggers, Common Table Expressions (CTEs), Window Functions, Indexing, Query Optimization, and Database Performance Tuning, with proven ability to handle large-scale enterprise datasets.

Experienced in ETL Development, ETL Pipelines, Data Warehousing, Data Quality Management, Data Quality Checks, KPI Reporting, Root Cause Analysis, Business Intelligence, and Data-Driven Decision Making. Delivered 600+ enterprise reports using JasperReports, Jaspersoft iReport Designer, JRXML, and Jasper Server, translating business requirements into enterprise reporting solutions.

Microsoft Azure

Fundamentals (AZ-900) Certified (98.1%), with working knowledge of Azure Cloud Services, Azure Data Concepts, and Cloud Fundamentals. Currently enhancing Python programming skills for data processing, automation, SQL integration, and modern data engineering workflows.

Senior Software Engineer - GlobalLogic

(2025-05 - 2026-06)

Client: Frontline Education (USA) | Domain: Education Technology

• Developed and maintained SQL Server-based enterprise reporting solutions, including Jasper Reports and JRXML templates for a leading US-based EdTech client.
• Enhanced JRXML templates, parameters, and sub-reports to meet evolving business reporting requirements.
• Wrote and optimized SQL Queries and Stored Procedures to improve reporting performance and data retrieval.
• Analysed business requirements and implemented report enhancements to support dynamic business needs.
• Performed data analysis, data slicing, and data validation to generate business insights and support decision-making.
• Resolved client-raised tickets related to report enhancements, bug fixes, and production issues.
• Utilized Git for version control, pull requests, code reviews, and deployment activities.
• Debugged and resolved production defects in existing JasperReports, including JRXML templates, parameters, and sub-reports.

Software Developer - Nuclear Power Corporation of India Limited (NPCIL)

(2018-03 - 2025-03)

Deployed through payroll partners: Sirius Global India | Puthur Infotech | Sree Gajanan Man Power

• Designed, developed, and maintained enterprise databases and reporting solutions using MS SQL Server, PostgreSQL, and IBM DB2.
• Planned, designed, documented, and maintained mission-critical databases supporting enterprise and operational applications.
• Developed complex SQL Queries, Stored Procedures, Functions, Views, and Triggers for data processing, reporting, and business analytics.
• Built end-to-end ETL processes involving data extraction, transformation, data cleaning, validation, data integration, and data loading from multiple enterprise data sources.
• Performed Data Profiling, Data Quality Checks, Data Validation, Data Reconciliation, and Root Cause Analysis to ensure data accuracy and consistency.
• Performed SQL Query Optimization, Database Performance Tuning, Indexing, and Execution Plan Analysis to improve application and reporting performance.
• Delivered 600+ enterprise reports spanning KPI, Financial, Operational, Billing, Adhoc, Performance, and Summary reporting, using JasperReports, Jasper Server, Jaspersoft iReport Designer, and JRXML.
• Developed complex JRXML reports with dynamic parameters, conditional expressions, sub-reports, drill-down functionality, charts, and multi-level report structures.
• Generated datasets for KPI, operational, financial, and management reporting to support business decision-making.
• Implemented database security using SQL Logins, Roles, User Permissions, and Authentication mechanisms.
• Collaborated with business users and stakeholders to gather requirements and translate business needs into technical reporting solutions.
• Analysed business requirements and developed reporting solutions aligned with organizational objectives.
• Provided L2/L3 production support, incident resolution, troubleshooting, and Root Cause Analysis.
• Performed SDLC activities including development, testing, deployment, maintenance, and production support.
• Worked closely with cross-functional teams to deliver reporting and database solutions within project timelines.
• Partnered with business stakeholders to translate KPI, operational, and financial reporting requirements into analytical reports and business insights.
• Prepared technical documentation and ensured compliance with quality standards and organizational best practices.

Trainee Software Engineer - FOCAL3 Software Pvt Limited - Technopark, Trivandrum

(2015-06 - 2016-08)

• Developed a web application using HTML, CSS, and JavaScript to display dynamic content.
• Provided analytical expertise for complex, specialized report requests requiring business logic implementation.
• Conducted usability testing sessions and made iterative improvements based on user feedback.

B.E. - Computer Science Engineering - Noorul Islam College of Engineering (2009 - 2012)