Dr. Sajan Kumar

Data Engineer & ML Engineer | 10+ Years Building Large-Scale Data Pipelines

Sajan Kumar
One of the four VERITAS telescopes at night
One of the four VERITAS telescopes under a clear night sky.


I am a data engineer and machine learning practitioner with 10+ years of experience building large-scale, production-grade data pipelines. I hold a PhD in astrophysics, where I worked with terabyte-scale data from gamma-ray observatories including VERITAS and HAWC. I have since applied that same rigor to industry-focused data problems. I design end-to-end pipelines (Airflow, HPC/Slurm, Docker), build ML models for anomaly detection and classification on high-dimensional, noisy datasets, and develop LLM/RAG systems for semantic search and retrieval.
I am seeking Data engineering / Analytics engineering roles in industry.

Over the course of my career, I have developed strong expertise in: