Om Jay Mishra
Data Engineer | Azure Databricks | PySpark | Delta Lake | Unity Catalog | Databricks Certified
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About
Data Engineer with 3+ years building scalable Lakehouse architectures on Azure Databricks. Reduced pipeline runtime from 6 hours to 30 minutes on 500M+ record datasets using Liquid Clustering, improved query performance 65% across 50M+ records, and cut Databricks DBU costs 25% through cluster and autoscaling optimization.
Databricks Certified Data Engineer
Associate with deep expertise in PySpark, Delta Lake, Unity Catalog, and Medallion Architecture. Immediately available.
Experience
Data Engineer at Azimuth GRC (2023-05 – 2026-05)
- Led end-to-end migration from legacy databases to Databricks Lakehouse, transforming SQL-based workflows into scalable PySpark and Delta Lake architectures
- Resolved partition skew on 500M+ record pipelines using Liquid Clustering, reducing runtime from 6 hours to 30 minutes
- Developed a Gold-layer Star Schema in Databricks, improving query performance by 65% across 50M+ records
- Reduced Databricks DBU consumption by 25% through cluster optimization, autoscaling, and Photon Engine utilization
- Orchestrated Azure Data Factory and Databricks pipelines with custom Python automation, eliminating 270+ hours of manual effort
- Implemented centralized data governance in Unity Catalog with fine-grained access controls and automated audit tracking
Data Analytics Engineer at PlanetSpark (2022-11 – 2023-05)
- Automated data transformation workflows for 10K+ student records using Google Apps Script, improving data preparation efficiency
- Performed data cleansing, validation, and transformation to improve dataset accuracy and reporting reliability
- Consolidated multi-source data into a centralized Power BI reporting layer, enabling stakeholders to track engagement and enrolment metrics
Education
B.Tech in Mechanical & Automation Engineering – Maharaja Agrasen Institute of Technology (2019 – 2023)





