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Hari Prasanna

Data Engineer — End-to-end data lifecycle specialist with a learn-by-doing philosophy.

✉️ Email 💼 LinkedIn 🐙 GitHub 📄 Resume

🛠️ Tech Stack

Python SQL Bash Apps Script Databricks Delta Lake dbt Pandas PySpark Airflow Docker AWS S3 & IAM PostgreSQL Oracle Looker Power BI Grafana GitHub Actions Git Ubuntu

💼 Work Projects — Production Systems

Oracle → Google Sheets ETL Pipeline

Production

Automated a 100 min/day manual report to fully autonomous — powers the DG Monitor Dashboard

Pandas SQLAlchemy Databricks

Real-Time KPI TV Dashboard

Production

Replaced a €10K vendor proposal with an in-house solution running at under €70/month

Databricks Grafana Google Sheets

🚀 Personal Projects

Shopstream: Clickstream Lakehouse

In progress

E-commerce conversion funnel analytics on a Medallion Architecture with Delta Lake

PySpark AWS S3 dbt Unity Catalog

TMDB: Local to Cloud Lakehouse

Completed

Migrated a local Postgres pipeline to a cloud lakehouse on AWS + Databricks

AWS S3 Databricks dbt Airflow

Zalando LUU Returns Pipeline

Completed

Mock ELT with injected anomalies, modeled into a Star Schema via dbt

Faker PostgreSQL dbt Docker

Airflow Orchestration

Infra

Centralized DAG management with "Clean Room" env isolation

Airflow Docker

CI/CD Pipelines

Active

GitHub Actions workflows with path filters for multi-project repo

GitHub Actions YAML

Weather ELT Pipeline

Completed

Fully autonomous local pipeline — zero-touch Cron automation for 10 German cities

PostgreSQL dbt Bash Cron

🎓 Certifications

📘

Databricks Certified Data Engineer Associate

Databricks

In progress

Built with mkdocs-material — each project gets its own nested section with sub-pages for architecture diagrams, code walkthroughs, and lessons learned.