Balaji Thakur

Balaji Thakur

Data Analyst
India
English

About Me

Data Engineer with 1.11 hands on experience building ETL/ELT pipelines, data lake solutions, and Big Data workflows on Azure and AWS. Working knowledge of Azure Databricks, PySpark, Spark SQL, Delta Lake, ADF, Medallion …

Experience

Data Engineer

Shekru Labs India Pvt. Ltd. · Pune, Maharashtra
Mar 2025 - Present · 1 year 7 months

<p>Built ETL/ELT pipelines using Azure Data Factory and Azure Databricks (PySpark) to ingest data from RDBMS, REST APIs, flat files, and cloud storage (ADLS Gen2, AWS S3), cutting manual ingestion effort by [20]%.<br>
Implemented Medallion Architecture (Bronze/Silver/Gold) on Delta Lake with CDC for incremental loads, producing analytics-ready datasets for downstream BI.<br>
Designed Star/Snowflake schema Fact and Dimension tables; applied indexing, partitioning, and Spark tuning to improve query and job performance.<br>
Built transformation workflows using PySpark, Spark SQL, Snowflake, DBT, and AWS Glue/Lambda across structured and semi-structured sources.<br>
Enforced data quality checks and RBAC/Key Vault-based security; set up CI/CD via Azure DevOps with pipeline monitoring in Azure Monitor and Log Analytics.<br>
Modelled graph based healthcare relationships in Neo4j identified Azure cost optimisation opportunities.</p>

Data Analyst, Pharmaceutical Manufacturing

SMS Integrated Facility Services · Pune, Maharashtra
Sep 2024 - Feb 2025 · 5 months

<p>Analysed production, inventory, and quality data; ran root-cause analysis on batch variances and deviations, presenting corrective actions to plant leadership.<br>
Built Power BI dashboards (DAX, Power Query) and automated daily MIS reports tracking production targets vs. actuals, speeding up KPI visibility for operational decisions.</p>

Skills

Azure Databricks ADF Synapse Analytics ADLS Gen2 Delta Lake Unity Catalog Snowflake DBT Apache Airflow AWS S3 AWS Glue AWS Lambda ETL/ELT Pipelines Medallion Architecture CDC Workflow Automation Python PySpark Spark SQL SQL Pandas NumPy REST APIs Star Schema Snowflake Schema Fact Tables Dimension Tables SCD Data Warehouse Design Git Azure DevOps CI/CD RBAC Azure Key Vault Spark Tuning Query Tuning Power BI DAX Power Query Tableau Advanced Excel KPI Dashboards Neo4j Agile Scrum JIRA
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