Data Scientist - Mid Level active TS/SCI

Leidos; St. Louis (MO); On-site; USD 59,000 - 107,000; Full time

Job summary

Leidos is actively seeking a Data Scientist to join our growing team in St. Louis, MO. The role focuses on GEOINT integration, data management, and automation to modernize workflows and enable scalable analysis across programs.

You will collaborate with senior data scientists and developers to convert legacy code to Python, build dashboards, and document data practices while applying industry best practices.

Qualifications

• 3-6 years’ experience in Python or R, data preprocessing, and basic machine learning.
• Active TS/SCI with willingness to be approved for a Polygraph.
• Bachelor’s Degree in a related field; additional experience considered in lieu of degree.
• Working knowledge of ArcGIS, ArcSDE, ArcPro; familiarity with PostgreSQL and APIs.

Responsibilities

• Provide data management and automation support to geospatial analysis teams.
• Develop and modernize data workflows supporting multiple programs.
• Collaborate with senior data scientists, developers, and analysts to implement pipelines.
• Research and document data practices and system dependencies.
• Design improved workflows with automation from the outset.
• Translate analytical findings for non-technical audiences.

Skills

Python

R

APIs

PostgreSQL

PostGIS

ArcGIS

ArcSDE

ArcPro

Education

Bachelor's Degree in related field

Tools

Flowable

MapInfo

Tableau

Job description

Description

Leidos is actively seeking a Data Scientist to join our growing team in St. Louis, MO.

Description

Leidos is actively seeking a Data Scientist to join our growing team in St. Louis, MO.

This interesting work requires staff qualified to have a basic understanding of GEOINT integration work. The work requires a basic understanding of GEOINT from collection, exploitation, analysis and product delivery capabilities.

Primary Responsibilities

• Provide data management and automation support to a specialized imagery and geospatial analysis division within a government or enterprise organization.
• Assist with developing a modernized data management workflow supporting multiple organizational programs.
• Collaborate with senior data scientists, database developers, and analysts to implement and sustain updated database processes and workflows.
• Research and document existing data management practices, procedures, and system dependencies.
• Help design improved workflows with automation incorporated from the outset.
• Ensure new workflows integrate effectively with modern database applications and enterprise-level application programming interfaces.
• Enhance existing models and simulations involving production, monitoring, and change-detection data.
• Support additional data management and modernization initiatives as required.
• Develop code and scripts, including the conversion of legacy applications written in multiple programming languages into Python-based solutions.
• Implement enterprise database management standards, processes, and controls.
• Automate repetitive data preparation, validation, transformation, and reporting tasks.
• Deliver technical solutions that apply industry best practices to modernize existing operational processes.
• Conduct data investigations using applied statistics, algorithm development, and collaboration with subject-matter experts.
• Translate complex analytical findings and operational realities into clear explanations for non-technical audiences.
• Create visualizations and dashboards from diverse data sources that are accessible and understandable to non-technical users.

Basic Qualifications

• 3-6 years’ experience in programming languages such as Python or R (statistical analysis), data preprocessing, and basic machine learning algorithms.
• Active TS/SCI with willingness to be approved for a Polygraph
• Bachelor’s Degree in related field (additional years of experience can be considered in lieu of degree)
• Working knowledge of ArcGIS, ArcSDE, ArcPro
• Familiarity with: common data science libraries and frameworks, plus:
  • PostgreSQL, Postgis, PgAdmin
  • Application programming interfaces (APIs)

Preferred Qualifications

• Experience with workflow management systems, such as Flowable, and
• Working knowledge of MapInfo/ MapBasic GIS/ database software
• Experience with data visualization software such as Tableau

#GEOINTMISSION

#NSBA

Original Posting

September 17, 2026

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range

Pay Range $59,150.00 - $106,925.00

About Leidos

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.Leidos.com.

Pay And Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at www.leidos.com/careers/pay-benefits.

Commitment to Non-Discrimination

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.