Senior Datawarehouse Developer in Chevy Chase, MD at Open Systems Technologies

Date Posted: 11/15/2019

Job Snapshot

  • Employee Type:
  • Job Type:
  • Experience:
    At least 3 year(s)
  • Date Posted:

Job Description

An insurance company is seeking a Senior Datawarehouse Developer to join their team in Chevy Chase, MD.


  • Handle on call responsibilities and provide production support and maintenance
  • Participate in 24x7 on call support for key processes and data flows
  • Develop, test, implement and maintain automated ETL operations for a variety of data sources and data marts in the Hadoop ecosystem
  • Create and execute test plans. Document assumptions, methodologies and validation techniques


  • Must have at least a Bachelor’s degree in Computer Science, or related field
  • 3+ years of experience as a Big Data Developer
  • Experience with manipulating and transforming data
  • Experience on Spark core and Spark SQL
  • 2+ years of experience on Hadoop Eco System (MapReduce, Oozie, Hive and Pig)
  • 2+ years of experience on core Java or Scala
  • Exposure with NoSQL databases, such as HBase or Cassandra or MongoDB
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