Nirmal Kumar1993
SQL Developer | Data Modeling | Oracle PL/SQL Developer
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About
Results-driven SQL Developer with 4+ years of experience in Oracle PL/SQL development, data modeling, and database optimization. Strong expertise in writing complex SQL queries, designing efficient data models, and improving database performance. Proven ability to support business-critical applications, perform root cause analysis, and deliver scalable data solutions. Seeking an opportunity as a SQL Developer / Data Modeler at Cognizant (CTS).
Experience
PL/SQL Developer at Toppan Merrill (2022-10 – 2025-10)
- Designed and optimized complex SQL queries and PL/SQL programs for large-scale financial systems.
- Worked on database design and data modeling concepts to support reporting and transactional systems.
- Improved SQL performance by 30%+ through indexing, query tuning, and execution plan analysis.
- Developed and maintained packages, procedures, functions, and triggers.
- Handled production support issues (L2/L3), root cause analysis, and data fixes.
- Worked on bulk data processing using BULK COLLECT and FORALL.
PL/SQL Developer at Azentio Software Solutions (2021-09 – 2022-07)
- Developed complex SQL queries, joins, subqueries, and analytical functions.
- Assisted in database schema design and data modeling activities.
- Performed query optimization using indexes and Explain Plan.
- Supported data migration, validation, and transformation tasks.
- Worked closely with business teams to translate requirements into database solutions.
Agency Channel at HDFC Life Insurance (2019-01 – 2021-09)
- Managed agency operations and gained strong understanding of insurance data and business processes.
- Handled customer data, policy lifecycle, and reporting activities.
Franchise Operations at Ritemed Pharma Private Ltd (2016-07 – 2019-01)
- Managed operations and handled transactional data, billing, and reporting.
- Ensured accuracy and consistency in data handling and inventory management.
Education
Master of Business Administration in MBA – Vels University
Bachelor of Computer Application in BCA – SRM University