Demo

Data Scientist

Castalia Systems
Tysons, VA, VA Full Time
POSTED ON 1/8/2026
AVAILABLE BEFORE 1/22/2026

Job Type: Full- Time

Workplace Type: Onsite in Tysons, VA

Clearance: Active TS/SCI clearance with current CI Polygraph

Must be a U.S. Citizen

Benefits: Medical, dental, and vision coverage, 401k matching, generous PTO, paid holidays, professional training opportunities, and even pet insurance to ensure your furry friends are cared for too.

Job Summary

Castalia Systems is currently searching for a Data Scientist to join our exciting new program. Qualified candidates will have an in-depth knowledge of common machine learning techniques and their application. Candidates should also understand the limitations of these algorithms and how to tweak them or derive from them to achieve similar results at large-scale.

Roles and Responsibilities

A qualified candidate will perform the following duties and responsibilities, but are not limited to:

  • Lead the research, design, implementation, and deployment of Machine Learning algorithms, intelligent agents, or optimization solutions for enterprise applications leveraging the C3 AI Suite.
  • Assist and enable C3 AI�s federal customers to build their own applications on the C3 AI Suite.
  • Contribute to the design and implementation of new features of the C3 AI Suite.

Required Qualifications:

  • MS or PhD in Computer Science, Electrical Engineering, Statistics, Operations Research or equivalent fields with 10 years of experience in data science
  • Applied Machine Learning experience (regression and classification, supervised and unsupervised learning).
  • Strong mathematical background (statistics, linear algebra, calculus, probability, and optimization).
  • Ability to dive into a large ML codebase to debug and improve it.
  • Ability to drive a project and work both independently and in a team.

Desired Qualifications:

  • Production experience with Generative AI
  • Experience with deep learning, natural language processing, computer vision, or application of large language models (RAG, Agentic, etc.).
  • Understanding of optimization (constrained, stochastic, convex and non-convex optimization problems)

Physical Requirements/Work Environment

  • Normal office environment.

Travel

None required.

Company Description

Castalia Systems is a proven business partner providing mission critical solutions to the Federal Government. We provide cutting edge solutions from Securing and Managing Data to Systems Engineering and Development. Castalia Systems is a pioneer in Artificial Intelligence Design and Application.

With our vast knowledge of our customers� needs and relevant technology, our team can bring successful solutions to every mission. We are one-upping our competitors by providing premium IT solutions and platforms with cutting-edge technology so it�s very evident when you compare us with anyone.

Disclaimer

Castalia Systems is an equal employment opportunity and affirmative action employer and strives to comply with all applicable laws prohibiting discrimination based on race, color, creed, sex, sexual orientation, age, national origin, or ancestry, physical or mental disability, veteran status, marital status, HIV-positive status, as well as any other category protected by federal, state, or local laws. All such discrimination is unlawful, and all people involved in the operations of the company are prohibited from engaging in this type of conduct.

Salary.com Estimation for Data Scientist in Tysons, VA, VA
$143,357 to $176,774
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