Security-Cleared Data Engineer (TS/SCI+Poly)

Cornerstone Defense LLC; Chantilly (VA); On-site; USD 120,000 - 180,000; Full time

Benefits offered by this job

Medical plan

Dental plan

Vision plan

PTO

401(k)

Job summary

Cornerstone Defense LLC is seeking a Data Engineer in Chantilly, VA to build and optimize data pipelines, transform and ingest data, and support analytics across mission-focused datasets. The role emphasizes securing data provenance and collaborating with data stewards and engineering teams.

The ideal candidate has 10+ years in data lifecycle engineering, strong ETL experience, and proficiency with Python, SQL, Spark, ElasticSearch, and NiFi.

Qualifications

• 10+ years of experience in data lifecycle engineering and data engineering.
• Experience developing and maintaining ETL tools and services.
• Experience with cloud and on-prem data storage and processing solutions.
• Proficiency in Python, SQL, Spark and related data engineering tech.
• Familiarity with ElasticSearch, NiFi, and open source data tooling.
• Experience delivering data pipelines within an Agile lifecycle.

Responsibilities

• Develop new ETL code and data extraction from various repositories.
• Design and optimize data pipelines using Spark, Iceberg, Trino, OpenSearch, and NiFi.
• Ensure data pedigree and provenance while protecting access to data.
• Clean and preprocess data for advanced analytics.
• Collaborate with data stewards and engineers to enable actionable insights.

Skills

Data lifecycle engineering

ETL tools & services

Cloud & on-prem data storage

Python/SQL/Spark

ElasticSearch & NiFi

Agile data processing

Tools

Spark

Apache Iceberg

Trino

OpenSearch

EMR

NiFi

Kubernetes

Job description

Cornerstone Defense LLC is seeking a Data Engineer in Chantilly, VA to build and optimize data pipelines, transform and ingest data, and support analytics across mission-focused datasets. The role emphasizes securing data provenance and collaborating with data stewards and engineering teams.

The ideal candidate has 10+ years in data lifecycle engineering, strong ETL experience, and proficiency with Python, SQL, Spark, ElasticSearch, and NiFi.