Karishma Kaiz

Karishma Kaiz

Data Engineer
UAE
English, Malayalam, Hindi

نبذة عني

Highly skilled Data Engineer with 6+ years of experience designing and optimizing scalable ETL/ELT pipelines using Azure Databricks, PySpark, and Delta Lake. Proven ability to implement Medallion Architecture across Bron…

الخبرة

Senior Data Engineer

Orion Innovation · Kochi, India

<p>Spearheaded requirement analysis, source-to-target mapping, and data validation for workflow mining initiatives, collaborating with business analysts and stakeholders to ascertain application workflows, reporting needs, and underlying source systems.<br>
Architected metadata-driven ETL pipelines in Azure Databricks (PySpark, Spark SQL) utilizing a 3-layer Medallion Architecture (Bronze → Silver → Gold), facilitating the onboarding of new data sources without requiring pipeline modifications.<br>
Developed reusable, parameterized Databricks notebooks for dynamic data ingestion, merging, transformation, cleansing, normalization, and aggregation according to business rules, thereby reducing redundant development efforts.<br>
Automated recurring manual data engineering tasks using Python/PySpark scripts, enhancing daily operational productivity and earning Orion's SPOT Out-of-the-Box Thinking Award.<br>
Remedied high-priority production defects with zero reoccurrences, directly improving data quality, pipeline stability, and processing reliability for downstream Power BI reporting.<br>
Chaired a Microsoft Fabric modernization Proof of Concept (PoC), migrating data from Azure IaaS/PaaS to Fabric capacity and OneLake, which included SQL Server database restoration and the consolidation of multiple databases into a unified Bronze layer; findings significantly influenced the organization's Fabric adoption strategy.<br>
Delivered structured, governed datasets (Delta Lake, Serverless Compute, Unity Catalog) to the Power BI team, empowering data-driven decision-making across business reporting functions.<br>
Conducted knowledge-transfer sessions on Databricks and migration strategies, mentoring new team members and documenting PoC scope and limitations for organizational reuse.</p>

Data Engineer (Associate)

Cognizant Technology Solutions · Kochi, India

<p>Engineered and optimized enterprise ETL pipelines utilizing Azure Databricks, Azure Data Factory (ADF), Python, PySpark, and SQL, supporting large-scale data integration and reporting for enterprise clients for over five years.<br>
Orchestrated the migration of legacy Informatica ETL workflows to Azure Databricks as a critical component of the client's cloud modernization program.<br>
Implemented Slowly Changing Dimensions (SCD), Master Data Management (MDM), and data validation frameworks, enhancing data quality and consistency within dimensional models and data warehouse solutions.<br>
Established and maintained CI/CD pipelines with Azure DevOps and Git, enabling automated deployment, version control, and streamlined release management.<br>
Fine-tuned Spark jobs, SQL queries, and Databricks workloads, decreasing execution times and improving processing performance across production pipelines.<br>
Monitored batch workflows and pipeline executions, proactively troubleshooting failures to ensure Service Level Agreement (SLA) compliance, receiving commendations twice from project leadership for timely and defect-free delivery.<br>
Performed code reviews, enforced coding standards, and authored comprehensive technical documentation, architecture diagrams, and operational runbooks.<br>
Mentored junior engineers and delivered knowledge-transfer sessions on Azure Databricks, ADF, and cloud migration strategies while supporting Agile/Scrum delivery using Jira and Confluence.</p>

المهارات

Azure Databricks Microsoft Fabric Azure Data Factory (ADF) Azure Data Lake Storage Gen2 Azure SQL Database Azure DevOps Python SQL Lakehouse Architecture Medallion Architecture PySpark Spark SQL Delta Lake Data Warehousing Data Modelling Data Migration Unity Catalog ETL/ELT Enterprise Data Platforms Data Validation Data Quality Frameworks Metadata-Driven Processing Master Data Management (MDM) Slowly Changing Dimensions (SCD) Spark Optimization Query Optimization CI/CD Agile/Scrum Git Production Support
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