Leidos

Data Scientist

Leidos McLean, Virginia, United States · $131K–$237K/yr

Defense and Space Manufacturing · 10,001+ employees

4 d ago
data-scientist Principal (10+ yrs) Full-time United States
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About the role

The Data Scientist will build statistical and machine learning models while developing automated solutions for complex business challenges. They will also perform web scraping, manage data across multiple databases, and provide data-driven recommendations to support national security projects.

What they look for

Python SQL Machine Learning Natural Language Processing Statistical Modeling Data Visualization AWS Git Social Network Analysis Predictive Modeling Tableau Plotly Seaborn Matplotlib Database Management API Integration

Requirements

Candidates must possess a TS/SCI with Polygraph clearance and a minimum of a Bachelor's degree with 12-15 years of relevant experience. Proficiency in Python, SQL, and experience with NLP and machine learning techniques are required.

Benefits

Paid Time Off Paid Holidays 401k Flexible Schedules Discounted Stock Purchase Plans Technical Upskilling Education And Training Support Parental Paid Leave

Full description

Job Description

Leidos has a new and exciting opportunity for a Data Scientist in our Intel Sector Analysis Solutions Business Area (ASBA) in McLean, VA.  Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more.  Join us and make a difference in Analysis Solutions Business Area!

Job Summary:

We are looking for a Data Scientist with an entrepreneur’s mindset to support a fast-paced and growing data science team working on projects critical to National Security.

Responsibilities Include:

  • Build statistical and machine learning models, conducting natural language processing (NLP), and developing automated solutions for complex business challenges.
  • Construct and execute complex database search queries across multiple databases using SQL and API interfaces.
  • Perform web scraping and apply various techniques for processing unstructured data. 
  • Leverage automation and machine learning to manage data, predict scenarios, and make data-driven recommendations.
  • Learn and leverage technologies including AWS and Git.

Basic Qualifications:

  • Must have TS/SCI with Polygraph.
  • BS degree and 12 – 15 years of prior relevant experience or Masters with 10 – 13 years of prior relevant experience. May possess a Doctorate in technical domain.
  • Experience with Python is required.
  • Social network analysis (SNA) experience
  • Strong SQL skills and experience with relational databases and APIs for data extraction is required.
  • Experience with supervised and unsupervised learning and natural language processing (NLP) is required. Familiarity with NLP libraries and tools (e.g., spaCy, Hugging Face, NLTK, or TensorFlow).
  • Experience with frequentist statistics, probability, and predictive modeling, along with knowledge of computer science concepts, data architecture, and statistical methods.
  • Proficiency with data visualization tools (e.g., Tableau, Plotly, Seaborn, Matplotlib) is required.

#ASBA

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.

Original Posting:

October 9, 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 $131,300.00 - $237,350.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

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