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Data Engineer

Job in Chantilly, Fairfax County, Virginia, 22021, USA
Listing for: Cornerstone Defense LLC
Full Time position
Listed on 2026-06-02
Job specializations:
  • Engineering
    Data Engineer
  • IT/Tech
    Data Engineer, Data Analyst
Salary/Wage Range or Industry Benchmark: 60000 - 80000 USD Yearly USD 60000.00 80000.00 YEAR
Job Description & How to Apply Below

Data Engineer

Location:

Chantilly, VA

Clearance:
Active TS/SCI w/ Polygraph needed to apply

Develop new tools, code, and services to execute data engineering activities involving data of varying types and in varying conditions. Activities include the following tasks: movement of structured and unstructured data using approved methods; executing data ingestion activities for storing data in local or enterprise-level locations; developing code to format data that supports exploration; analyzing source data formats and working with Data Scientists and partners to determine the formats and transforms that best meet mission objectives;

developing code and tools to provide one-time and ongoing data extraction from various repositories, formatting and transformations into enterprise or standalone data models; creating new ETL and performing O&M and enhancements on existing ETL code using best practices and standards; and delivering documentation for each project including ETL mappings, code use guide, code location, and access instructions.

  • Design and optimize Data Pipelines using tools such as Spark, Apache Iceberg, Trino, Open Search, EMR cloud services, NiFi and Kubernetes containers
  • Ensure the pedigree and provenance of the data is maintained such that the access to data is protected
  • Clean and preprocess data to enable access for advanced analytics
  • Collaborate with enterprise working groups to advance the state of data standards
  • Collaborate with the engineering team, data stewards, and mission partners to aid in getting actionable value out of the data holdings
  • Collaborate with software engineers to update, configure, and maintain data services based on the requirements
  • Ensure data quality by working with the testing and data quality team to enhance standardization of data conditioning pipelines
  • Experience adapting to various types and formats of data, and working with development teams to integrate new data processing platforms
Required Skills
  • 10+ years' experience with data lifecycle engineering
  • Development and maintenance of extract, transform and load (ETL) tools and services
  • Cloud and on-prem data storage and processing solutions
  • Python, SQL, Spark and other data engineering programming
  • COTS and open source data engineering tools such as Elastic Search and Ni Fi
  • Processing data within the Agile Lifecycle
Benefits Overview
  • Medical, Dental and Vision Plans
  • Generous PTO Policy
  • 401(k)
  • HSA and FSA options
  • Life and Disability Insurance
  • Tuition Reimbursement and Training
  • Perks at Work Discount Program
  • Referral Program
  • Leads Generation Program
  • College America 529
  • Fitness Reimbursement Program
  • Travel Assistance
  • Norton Lifelock Benefit Solutions
  • Life Planning Financial & Legal Services
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