Siddharth Sujir

I am a seasoned Principal Data Engineer with over 13 years of experience building high performance, scalable data architectures for global leaders like Amazon, Visa, Nielsen, and Zoom. My expertise lies in transforming raw data into strategic assets through robust ETL/ELT pipelines, real time streaming, and sophisticated data modeling. If you are looking for a freelancer who can bridge the gap between complex engineering and actionable business intelligence, I provide the technical depth and leadership necessary to drive your data initiatives forward.
Core Expertise & Technical Arsenal
My technical foundation is built on the Java, Scala, and Python ecosystems, with a mastery of SQL for complex data manipulation. I specialize in:
Extensive experience with Apache Spark Core, SQL, MLlib, Hadoop, Hive, and Sqoop
Building real time data delivery systems using Apache Kafka and Spring Boot microservices
Architecting solutions on AWS
Expert in workflow orchestration with Airflow