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Data Scientist Mid

Job in St. Louis, Saint Louis, St. Louis city, Missouri, 63105, USA
Listing for: Castalia Systems
Full Time position
Listed on 2026-01-17
Job specializations:
  • IT/Tech
    Data Engineer, Data Analyst
Salary/Wage Range or Industry Benchmark: 125000 - 150000 USD Yearly USD 125000.00 150000.00 YEAR
Job Description & How to Apply Below
Location: St. Louis

Job Type: Full
- Time

Workplace Type
:
Onsite is, MO

Clearance: Active TS/SCI clearance with 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 is seeking a highly skilled Data Scientist with a TS/SCI clearance and CI Polygraph to support a government customer in the St. Louis, Missouri area.

Roles and Responsibilities

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

  • Interact with analysts; routinely take and translate analytical requirements and transform them into data formats to allow for use and the application of new emerging analytical methodologies
  • Interpret rich data sources, manage large amounts of data, merge data sources together, ensure consistency of data-sets, support the creation of visualizations to understand data, build mathematical models using the data, present and communicate the data insights/findings to specialists and scientists in their team and if required to a non-expert audience
  • Design, develop, program, and test applications and exchange data within and amongst information systems
Required Qualifications
  • Current TS clearance with access to SCI?
  • Bachelor's degree in related field
  • At least 4 years of full-time experience creating and applying algorithms and statistical methods to data, visualizing data, and developing database architecture?
  • Demonstrated experience developing data visualizations with tools such as Tableau, Power Bl, Grafana, etc.
  • Demonstrated experience with data collection, conditioning, and wrangling
  • Demonstrated experience with SharePoint content management, lists, and forms
  • Demonstrated experience developing complex Nintex workflows
  • Demonstrated understanding of data analytics and statistics
Desired Qualifications
  • Knowledge and experience with database creation and management
  • Demonstrated experiences with coding languages, specifically Python, SQL, HTML, CSS, Java, R and Java Script
  • Effective oral and written communications skills
Physical Requirements /Work Environment
  • Normal office environment.
Travel

Less than 5%.

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 is able to 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 so 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 persons involved in the operations of the company are prohibited from engaging in this type of conduct.

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