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Senior Big Data Developer in Rockville, MD at Eliassen Group

Date Posted: 2/6/2019

Job Snapshot

  • Employee Type:
  • Location:
    Rockville, MD
  • Job Type:
  • Experience:
    Not Specified
  • Date Posted:

Job Description

We have an exciting new role for a Senior Big Data Developer working with one of our prestigious clients based out of Rockville, MD.

We will accept corp to corp or w2 contractors. For our w2 consultants, we offer a great benefits package that includes Medical, Dental, and Vision benefits, 401k with company matching, and life insurance.

Responsibilities of the Senior Big Data Developer:
  • Understand complex business requirements
  • Design and develop ETL pipeline for collecting, validating and transforming data according to the specification
  • Develop unit tests and performance tests
  • Maintain optimal data pipeline architecture
  • Design ETL jobs for optimal execution in AWS cloud environment
  • Reduce processing time and cost of ETL workloads
  • Participate in peer reviews and design/code review meetings
  • Provide support for production support operations team
  • Implement data quality checks
  • Identify areas where machine learning can be used to identify data anomalies
Requirements of the Senior Big Data Developer:
  • Multiple years of experience in programming language Java or Scala
  • Extensive experience in ETL projects
  • 3+ years of experience in big data projects
  • Believes in Scrum/Agile, and has deep experience delivering software when working on teams that use Scrum/Agile methodology
  • Strong and creative analytical and problem-solving skills
  • Required Technical Skills & Knowledge
  • Strong experience in Java or Scala
  • Strong experience in big data technologies like AWS EMR, Hadoop, Hive, Apache Spark, Apache Hbase, AWS Dynamo DB, AWS Lambda
  • Must be able to write complex SQL queries
  • Experience in performance tuning and optimization
  • Familiar with columnar storage formats ORC, Parquet and various compression techniques
  • Experience in writing Unix shell scripts
  • Unit testing using Junit or Scalatest
  • Git/Maven/Gradle
  • Code Reviews
  • Agile

Job ID: 315625

Keywords: Senior Big Data Developer, Unix, ORC, Git, Maven, Gradle, Code Reviews, Agile, SQL, Junit, Scalatest

About Eliassen Group:

Eliassen Group provides strategic talent solutions to drive our clients’ innovation and business results. Leveraging nearly 30 years of success, our expertise in IT staffing, Agile consulting, creative services, managed services, and life sciences enables us to partner with our clients to execute their business strategy and scale effectively. Headquartered in Reading, MA and with offices from coast to coast, Eliassen Group offers local community presence, deep networks, as well as national reach. For more information, visit

Eliassen Group is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, gender identity, national origin, age, protected veteran status, or disability status.

Don’t miss out on our referral program! If we hire a candidate that you refer us to then you can be eligible for a $1,000 referral check!