Kartikay Jindal - Data Engineer | ContraWork by Kartikay Jindal
Kartikay Jindal

Kartikay Jindal

Engineer building ETL pipelines & data processing workfows

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Cover image for Workforce Data ETL & KPI
Workforce Data ETL & KPI Pipeline (PostgreSQL, Python) Designed a PostgreSQL + Python ETL pipeline processing workforce data into automated KPI summaries, with SCD2 history tracking and MTD/YTD reporting. PL/pgSQL stored procedures for KPI calculation and history tracking Performance tuning: UNLOGGED staging tables, indexing, CTE-based transforms, bulk COPY Automated daily CSV ingestion via scheduled Python/Pandas jobs Stack: PostgreSQL, Python, Pandas, PL/pgSQL
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Cover image for PySpark Pipeline for Industry &
PySpark Pipeline for Industry & Market Data Analysis Built an end-to-end PySpark pipeline processing large-scale industry datasets to surface business insights — top-paying roles, company growth trends, and financial metrics (P/E ratio, ROE, headcount) across a 3-year window. Designed Spark transformations for large dataset processing Stored outputs in ORC/Parquet for efficient downstream querying Exported results to MySQL via Sqoop for reporting Stack: PySpark, Hadoop, ORC/Parquet, MySQL, Sqoop
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Cover image for Title: End-to-End API Data Pipeline
Title: End-to-End API Data Pipeline (Python, Airflow, PostgreSQL, Docker) Built a production-style ETL pipeline that pulls data from a REST API, transforms it, and loads it into PostgreSQL on a schedule — fully containerized for portability. Orchestrated with Apache Airflow (DAG-based scheduling, retries, alerting) Implemented ELT transformations and automated data quality checks Containerized with Docker for one-command deployment Set up CI/CD so pipeline changes are tested before deploying Stack: Python, Airflow, PostgreSQL, Docker, Git
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