About

Hemant Kumar is a Technical Lead for Big Data and Cloud, with over 12 years of experience in solution architecture for building highly scalable applications in cloud and on-premise environments. He is a certified Spark Developer with deep expertise in data integration, data cleansing, data processing, performance optimization, ETL, and Business Intelligence. Hemant has worked across multiple domains, including Airline, Telecom, and US Home Automation for Security Systems. Hemant's areas of expertise include Apache Spark, Apache Kafka, Apache Flume, Hadoop Technology (HDFS, Maprfs, MapReduce, Hive, Pig, Sqoop, and Oozie), NoSQL Databases (HBase, Cassandra, MongoDB), In-memory/MPP/Search (Impala, Apache Drill), Hadoop Distributions (Cloudera and MapR), Relational Databases (Oracle and MS SQL Server), Graph Databases (Neo4j), ETL/Data Integration (Talend Big Data and Informatica), and programming languages such as Python, Scala, SQL, PL/SQL, and Core Java. He is also proficient in operating systems such as Windows, UNIX, and Linux, and other tools such as Toad, SQL Developer, Putty, Mputty, and Winscp. Currently, Hemant works as a Technical Architect at Amadeus Labs, where he is responsible for migrating all existing applications built on older versions of software to their updated versions, along with the latest infrastructure for better stability. Hemant and his team have successfully migrated over 100 TB of data from the live application with zero downtime. In the past year, they have dedicatedly worked on overall cost reduction of the project, saving around 450K Euros per year on hardware and software licensing costs. Hemant has also built multiple tools on big data platforms for seamless data migration, data governance, and recovery of messages lost during the processing pipeline. In his previous roles, Hemant worked as a Technical Lead at Amadeus, where he built Big Data Applications on Cloud to simplify the complex functional business logic around the Airline/Travel domain, and as a Senior Associate Level 2 at Publicis Sapient, where he was a Technical Lead on designing and developing big data applications on AWS Cloud using Spark following lambda architecture to provide real-time streaming information on web logs as well as aggregated information on the same using batch processing. Hemant holds a Master of Computer Applications (MCA) from VIT and a