Kumari Sonika

Database Developer

Noida 2+ yrs exp 90 · Outstanding

About

Database Developer with more than 2 years of experience in designing, implementing, and maintaining database systems. Proficient in SQL, database optimization, and performance tuning. Skilled in creating and managing complex queries, schema design, and data migration. Strong analytical skills with a commitment to improving data management systems, enhancing data integrity, and ensuring system reliability. Experienced in collaborating with cross-functional teams to develop tailored solutions and automate routine tasks for operational efficiency.

Skills & Expertise (17)

Excel Intermediate

6.5/10

Years Exp

MySql Intermediate

6.5/10

Years Exp

stakeholder communication Intermediate

6.0/10

Years Exp

Query Optimization Intermediate

6.0/10

Years Exp

RDBMS Intermediate

6.0/10

Years Exp

Power BI Intermediate

6.0/10

Years Exp

Oracle Intermediate

5.5/10

Years Exp

Schema Design Intermediate

5.5/10

Years Exp

Normalization Intermediate

5.5/10

Years Exp

Indexing Strategies Intermediate

5.5/10

Years Exp

Debugging Intermediate

5.5/10

Years Exp

Python Intermediate

5.3/10

Years Exp

Documentation Intermediate

5.0/10

Years Exp

Statistics SQL Plus Microsoft Office Power Point

Work Experience

Database Developer Intern

INTERNET RESEARCH BUREAU

Aug 2025 - Feb 2026

Designed queried and optimized relational databases using Microsoft SQL server to support internal business operations. Developed 5-6 interactive dashboards and reporting views by transforming raw SQL data into structured actionable insights aligned with stakeholder requirements. Collaborated with cross-functional teams to understand data requirements and ensure data accuracy, consistency, and integrity. Gained hands and experience with real time, production databases, including query, optimization, and data handling in a live environment. Performed data extraction, validation and analysis on large-scale datasets to generate performance and analytical reports for management decision-making.

Database Developer

SRIJAN SERVICES

Jan 2022 - Jan 2024

Developed SQL scripts responsible for table creation and ensuring integrity rules were adhered to within the database structure, contributing to a 15% reduction in data inconsistencies. Crafted over 100 SQL queries tailored to meet the specific requirements of various projects, ensuring they aligned with project objectives and needs, leading to a 30% increase in query efficiency. Created and implemented 50+ scripts for procedures, functions, and triggers within the database system, enhancing overall functionality and usability by 25%. Utilized performance optimization techniques like indexing and common table expressions (CTE), improving the efficiency and speed of the database system by 35%, ensuring faster data retrieval and a 30% increase in overall system performance. Established data security measures to protect sensitive research data, ensuring compliance with institutional and regulatory standards and reducing unauthorized access incidents by 20%. Worked closely with research teams to understand data requirements, develop custom database solutions, and provide technical support, leading to a 15% improvement in project turnaround time.