About

Rohitash Jain is a skilled Data Engineer with nearly 5 years of experience in data products and data warehousing. He has a proclivity for massive datasets and complex business problems. Rohitash has worked with a couple of US-based startups and helped them solve their pain points around data processing and getting valuable insights from the data. Currently working at alef education as a Data Engineer, Rohitash has previously worked at Qubole as a Member of Technical Staff. At Qubole, he optimized old ETLs in the system, identified and reduced S3 listing calls cost, and migrated Hive jobs to Apache Spark. He also contributed to cost explorer for clients, enabling them to monitor and track cost at the query, user, cluster level. Rohitash also productionized Bifrost, Qubole’s in-house platform for data sharing with customers over S3. Sharing insightful data with 1000s of customer accounts daily. Prior to Qubole, Rohitash worked at Sigmoid as a Software Developer. There, he built a powerful analytics platform for the Media industry. Key features included query response time on hundreds of terabytes of data in seconds, real-time alerting and reporting, cloud-enabled environment, SQL-enabled with optimization on count distinct queries, ad-hoc analytics, REST, and Thrift APIs, etc. He was involved in setting up ETL pipelines on the scale of 100 GB per hour for various clients. Rohitash worked on query optimization on hundreds of terabytes of data and worked on client-side for orchestration of multiple ETL pipelines using Airflow. He also worked on customization of their platform to accommodate various client requirements like data replacement, collating data from multiple sources. Rohitash has good knowledge of the internals of Apache Spark and has worked extensively on spark job optimization. He can identify the root cause of slowness of a spark job. Rohitash holds a Bachelor of Technology in Electronics and Communications Engineering from the Indian Institute of Information Technology (IIIT) and has a strong technical skill set including Data Engineering, Spark, Java, ETL, C, Software Engineer, Web, Test, Data Scientist, SQL, AWS, Apache Hive, Apache Airflow, MySQL, MongoDB, Kafka, UI, Frontend, and Backend. With almost 7 years of relevant experience, Rohitash is a valuable asset to any team looking to solve complex data problems.