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Hope you are doing well.

This is Ratan Saxena from Vista Applied Solutions Group Inc.,

 Please call @ 703-953-1864 or mail me for more information.


Name: Rajesh

Designation:  Sr. Big Data  Developer

Location: Charlotte, NC

Relocation: Open


Professional Summary:


  • Big Data Engineer with around 7+ years of experience in building data intensive applications, creating end to end data pipelines and building analytical data lakes.
  • Expertise on major components in Hadoop Ecosystem like Spark, MapReduce, HDFS, YARN, Hive, HBase, Kafka, Sqoop, Oozie and Impala.
  • Experience with major Hadoop on prem Distributions Cloudera, Horton works and cloud distribution AWS EMR.
  • Experience with distributed systems, large-scale non-relational data stores, data modeling, database performance tuning, and multi-terabyte data warehouses.
  • Experience in handling data in various file formats such as Avro, ORC, Parquet and JSON.
  • Strong hands-on experience using programming languages Java, Scala and Python.
  • Experience working AWS Cloud services for building data lakes. Utilized services like S3, EMR, Redshift, Athena, Glue Metastore etc.,
  • Strong experience writing end to end Spark applications for performing various data cleansing, data transformation, data aggregation, and data delivery activities.
  • Experienced in developing production ready spark application using Spark RDD Api’s, Data frames, Spark-SQL and Spark-Streaming API’s.
  • Strong knowledge on Spark internal architecture and ability to fine tune, troubleshoot long running spark applications.
  • Strong experience in using Spark Streaming, Spark Sql and other components of spark like accumulators, Broadcast variables, different levels of caching and optimization techniques for spark jobs
  • Worked on building various data ingestion pipelines to pull data from various sources like S3 buckets, FTP servers and Rest Applications.
  • Responsible for developing multiple Kafka Producers and Consumers from scratch as per the software requirement specifications.
  • Experience in creating Impala views on hive tables for fast access to data
  • Hands on experience in various Hadoop distributions like Cloudera, Hortonworks and AWS EMR.
  • Experienced in using waterfall, Agile and Scrum models of software development process framework.
  • Experience in complete project life cycle (design, development, testing and implementation) of Client Server and Web applications.
  • Experience in developing complex ETL transformation & performance tuning.
  • Knowledge with the implementations in building data lakes, data warehouses and data marts with the OLTP vs OLAP, star vs snowflake schema, normalization vs denormalization methods.
  • Experience in using configuration management tool like Sub Version (SVN) and Git for version controlling.
  • Knowledge on reporting tools like Power BI and Tableau.
  • Ability to blend technical expertise with strong Conceptual, Business and Analytical skills to provide quality solutions and result-oriented problem-solving technique and leadership skills.
  • UAT and Data Analyst experience with direct engagement and interaction with the business users and providing support throughout the phase.


Technical Skills:


Big Data/Hadoop

Spark, HDFS, MapReduce, Hive, Sqoop, Flume, Impala, Oozie, HBase


Java, Scala, Python, SQL


Agile, Waterfall model


MySQL, DB2, Oracle, Teradata

Build and Other Tools

Maven, SBT, Git, Jenkins





Ratan | Vista Applied Solutions Inc.

Direct: 703-953-1864Fax: 703-738-7337
459 Herndon Parkway , Suite 16 Herndon, VA 20170

 Connect with us: LinkedIn | Facebook | Twitter

Connect with me: Gtalk | Linked In



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