Data Engineer (Junior) — Onsite in Chantilly, VA

Castalia Systems; Chantilly (NC); On-site; USD 150,000 - 160,000; Full time

Job summary

Castalia Systems is seeking a Jr.-level Data Engineer to support a government client in Chantilly, Virginia. The role emphasizes data-focused problem solving, analytical thinking, and teamwork to enable operations with timely data products.

Responsibilities include automating data processes and delivering insights to upper management, using Python, AWS, and Excel as core tools. A BS in STEM and 5+ years of experience are required; a Master's is preferred.

Qualifications

• Bachelor of Science Degree in Science, Technology, Engineering, or Mathematics.
• 5+ years of progressive, relevant work experience.
• Demonstrate understanding of statistical analysis such as regression, anomaly detection and clustering.
• Demonstrate effective communication skills to relay data science activities, technical findings, and data products for both technical and non-technical customers.
• Ability to combine a diverse set of data sources containing multiple forms of information including, but not limited to, Open Source, Publicly Available Information (PAI), Commercially Available Information (CAI), and intelligence records to provide technical information to produce data packages.
• Ability to elicit and define system requirements, track progress against defined milestones to ensure completion, and evaluate test results to validate system performance and acceptance criteria.
• Demonstrated ability to design, develop, and maintain software solutions, including writing production-quality code, managing version-controlled repositories, and writing technical documentation.

Responsibilities

• Develop and implement methods of automation and optimization of data and products to present to upper management.

Skills

Statistical analysis

Data analysis

Communication

Requirements elicitation

Software design

Production code

Version control

Documentation

Education

Bachelor of Science in STEM

Master's degree in engineering/science

Tools

Python

AWS

Excel

Job description

Castalia Systems is seeking a Jr.-level Data Engineer to support a government client in Chantilly, Virginia. The role emphasizes data-focused problem solving, analytical thinking, and teamwork to enable operations with timely data products.

Responsibilities include automating data processes and delivering insights to upper management, using Python, AWS, and Excel as core tools. A BS in STEM and 5+ years of experience are required; a Master's is preferred.