Data Engineer with Security Clearance

Cornerstone Defense LLC; Chantilly (VA); On-site; USD 110,000 - 145,000; Full time

Job summary

Cornerstone Defense LLC in Chantilly, VA is seeking a Data Engineer to design scalable backend services and data pipelines for ingesting and transforming data from diverse sources.

The role blends backend engineering with data pipeline development, focusing on robust APIs and modular services within an Agile team to support operational and analytical systems.

You will contribute to data modeling, ETL workflows, and performance optimization.

Qualifications

• Bachelor's degree or equivalent in a technical field.
• Minimum of 5 years in software engineering with backend focus.
• Experience with NodeJS or Python and APIs/microservices.

Responsibilities

• Design scalable backend services and data ingestion solutions.
• Model data, map data, and perform large-scale file manipulation.
• Collaborate in an Agile environment with minimal supervision.
• Drive innovation and optimize performance for speed and scalability.
• Maintain robust data pipelines and APIs.

Skills

5+ years software engineering

NodeJS

Python

APIs

Microservices

Distributed systems

ETL workflows

NoSQL datastores

Data ingestion

Team collaboration

MongoDB

NiFi

Elastic

RabbitMQ

Cloud architecture

Distributed architecture

Education

Bachelor's Degree in Computer Science or related technical discipline

Job description

DATA ENGINEER Chantilly, VA JOB DESCRIPTION We're looking for a Data Engineer who is passionate about building modern, scalable solutions for ingesting and transforming data. This role blends back-end engineering with data pipeline development and is perfect for someone who enjoys designing modular services and bringing structure to complex data environments. As part of our Agile team, you'll design and develop software products and services that efficiently ingest, process, and manage data from a variety of sources. You'll play a key role in building robust, reusable APIs and data pipelines that support critical operational and analytical systems.

KEY RESPONSIBILITIES

• Design and develop scalable backend services and data ingestion solutions.
• Perform data modeling, data mapping, and large-scale file manipulation.
• Collaborate across disciplines in an Agile environment with minimal supervision.
• Drive innovation and process improvement with a hands-on development approach.
• Optimize application for maximum speed and scalability.

QUALIFICATIONS

• Bachelor's Degree in Computer Science, Electrical or Computer Engineering or a related technical discipline, or the equivalent combination of education, technical training, or work/military experience.

REQUIRED KNOWLEDGE/SKILLS

• At least five (5) years of related experience software engineering experience.
• Knowledge of NodeJS or Python
• Strong understanding of APIs, microservices, and distributed systems.
• Solid experience in building and maintaining ETL workflows and data pipelines.
• Excellent organizational, coordination, interpersonal and team building skills.
• Familiarization with NoSQL datastores.

DESIRED KNOWLEDGE/SKILLS

• NiFi experience
• Hands-on experience working with Elastic and RabbitMQ
• NoSQL experience (i.e. MongoDB)
• Distributed architecture creation
• Cloud based architecture creation or experience