Senior Data Engineer (TS/SCI with Poly) — Cloud Pipelines

Cornerstone Defense LLC; Fairfax (VA); On-site; USD 150,000 - 190,000; Full time

Job summary

Cornerstone Defense LLC in Tysons Corner, VA is seeking a Sr. Data Engineer to design, build, and operate scalable data pipelines for secure data exchanges.

The role requires TS/SCI with polygraph and hands-on AWS, IaC, and data tooling experience to enable secure data brokering across multiple domains.

You will work with cross-functional teams to deliver robust pipelines, provide production support, and ensure RMF-aligned security controls throughout the data lifecycle.

Qualifications

• 4+ years of proven data engineering experience.
• Experience designing and deploying data pipelines on AWS.
• Experience with Infrastructure-as-Code tools (Terraform, CloudFormation or Ansible).
• Understanding of RMF security principles and implementing controls in cloud environments.
• Strong scripting/programming skills in Go, Python and Bash.
• Experience with data pipeline tools such as NiFi, Hadoop, HDFS and Kafka; Cloudera Data Platform preferred.

Responsibilities

• Operationalize data pipelines and supporting cloud infrastructure.
• Collaborate with external data producers/consumers via interfaces like REST APIs and S3.
• Deploy Python-native data pipelines and perform data engineering tasks for data brokering.
• Provide Tier 2/3 troubleshooting and incident resolution for data pipelines in Production.

Skills

Data engineering

AWS

Go

Python

Bash

NiFi

Hadoop

HDFS

Kafka

Tools

Terraform

CloudFormation

Ansible

Job description

Cornerstone Defense LLC in Tysons Corner, VA is seeking a Sr. Data Engineer to design, build, and operate scalable data pipelines for secure data exchanges.

The role requires TS/SCI with polygraph and hands-on AWS, IaC, and data tooling experience to enable secure data brokering across multiple domains.

You will work with cross-functional teams to deliver robust pipelines, provide production support, and ensure RMF-aligned security controls throughout the data lifecycle.