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Aryan Gupta

Data Engineer

About Aryan

Data Engineer with strong SQL, Python, and ETL pipeline experience, specializing in data validation, automation, and query optimization. TechOps background at Paytm with hands-on work in large-scale data troubleshooting, pipeline support, data processing, and performance improvement.

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Skills

  • ETL
  • ETL pipelines
  • Excel
  • MySql
  • Power BI
  • Python
  • SQL
  • SQL Server
  • Tableau

Work Experience

2024-2026
Techops Engineer
Paytm

○ Analyzed large-scale transactional and operational datasets (millions of records) from high-volume

production databases using advanced SQL (complex joins, aggregations, CTEs, window functions,

subqueries) and optimized queries for performance, improving issue resolution time by ~20%.

○ Performed data validation, reconciliation, and consistency checks on large-scale production datasets

(millions of records) to ensure high data accuracy and consistency for reporting and downstream

systems.

○ Developed Python scripts for data extraction, transformation, and automation in projects, improving

efficiency and reducing manual effort.

○ Built reports, dashboards, and data visualizations using Excel, Power BI, and Tableau to track KPIs,

trends, and operational insights.

○ Supported data pipelines by performing data validation, consistency checks, and structured dataset

preparation across systems, ensuring reliable and accurate data flow.

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