Sajal Ranjan

I’m a Data Analyst who turns raw operational data into presentation-ready insights. I build ETL workflows, automated dashboards, and data quality checks—so stakeholders can trust the numbers and act faster.

In my projects, I engineered ETL pipelines to ingest, clean, and load 2,000+ records with null handling, deduplication, and schema validation using Python, PySpark, and MySQL. I also created audit-ready KPI dashboards to deliver actionable business insights, while staying comfortable with shifting, ambiguous priorities and multiple stakeholder needs.

I’m equally excited about applied AI for real business use. I built a full-stack GenAI application with LangChain and LLM APIs using structured MySQL retrieval, plus a Streamlit interface for real-time exploration; and I’ve also worked on a CNN-based image recognition model and a graph-based travel recommendation system using Dijkstra’s algorithm and interactive mapping.