MOHAN KALYAN
I am a Data Quality Engineer with strong experience in SQL, SQL Developer, Databricks, Power BI, and Tableau.
About
I am a Data Quality Engineer with strong experience in SQL, SQL Developer, Databricks, Power BI, and Tableau. I have worked extensively on data cleansing, validation, reconciliation, and quality checks to ensure data is accurate, complete, and reliable.
I have deep hands-on experience with SQL, including complex queries, data validation, troubleshooting, and query optimization to improve performance and produce reliable results. I have also worked on STTM (Source-to-Target Mapping) validation, validating source-to-target mappings, transformation logic, and data accuracy across systems.
In addition to data quality, I have experience building Power BI and Tableau dashboards and reports, creating KPIs, interactive visualizations, and business reports from clean and validated data.
My experience covers the complete data journey — data extraction, cleansing, validation, STTM validation, SQL optimization, analysis, and visualization. I focus on delivering accurate data, efficient solutions, and dashboards that are clear and useful for business users.
- 5 years' experience
- Joined September 2026
Skills· 4
Industry experience
- Software & Internet
- Professional Services
Work experience
Performed data quality checks to ensure data accuracy, completeness, and consistency across systems. Developed and executed complex SQL queries for data validation, reconciliation, analysis, and troubleshooting. Conducted STTM validation by verifying source-to-target mappings, transformation rules, and expected outcomes. Investigated data discrepancies and worked to identify root causes, using SQL Developer extensively for querying and validation. Worked in Databricks for data cleansing, transformation, and quality-related activities, including validating transformed datasets against source systems and business requirements. Supported downstream analytics and reporting using cleansed data, and collaborated with stakeholders to align outputs with business needs. Built and maintained Power BI and Tableau dashboards with KPIs, charts, filters, and interactive reports based on validated datasets.
Education
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