Data Engineer at Cognizant Technology Solutions
Chennai, Tamil Nadu, India
Chidambaram, Tamil Nadu, India
Bachelor of Technology, Biotechnology
Dhanalakshmi Srinivasan University
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Data Engineer with 3 years of experience in designing, developing, and optimizing scalable data solutions across cloud and big data platforms. Proficient in building end-to-end ETL pipelines, data ingestion frameworks, and cloud-native data architectures using Azure, Databricks, Snowflake, and Apache Spark. Strong expertise in SQL (CTEs, window functions, query optimization) and Python (Pandas, PySpark) for data transformation and analytics. Hands-on experience in integrating structured and unstructured data from multiple sources such as SQL Server, APIs, AWS S3, and Excel into high-performance data pipelines. Skilled in implementing data quality checks, validation frameworks, and governance practices using tools like Unity Catalog to ensure data accuracy, consistency, and reliability. Experienced in developing and managing data workflows using Azure Data Factory, Apache Airflow, and Databricks, enabling automation and improving pipeline efficiency. Proven ability to optimize queries and data processing techniques, achieving significant performance improvements in reporting and analytics. Worked extensively on healthcare data platforms, building scalable solutions for processing patient, claims, and operational data to support revenue cycle optimization and predictive analytics. Adept at collaborating with cross-functional teams including business analysts, stakeholders, and data scientists to deliver data-driven insights and reporting solutions. Strong understanding of data modeling concepts including OLTP, OLAP, Star Schema, and Snowflake Schema. Familiar with CI/CD tools like Git and Jenkins, and agile methodologies using Jira. Passionate about leveraging data engineering best practices to build secure, scalable, and efficient data ecosystems that support business intelligence, analytics, and decision-making.
Chennai
Data Engineer at Cognizant, Dec 2023 - Present · 2 yrs 6 mos, Chennai, Tamil Nadu, India
Data Engineer at LanceSoft Engineering, Mar 2023 - Nov 2023 · 9 mos, Chidambaram, Tamil Nadu, India
Bachelor of Technology, Biotechnology, Dhanalakshmi Srinivasan University