Data Scientist
At a glance
Mid-level Data Science role at Leidos. McLean · full-time · $131,300–$237,350 base.
dataroles summary, based on the employer's posting.
What you'll do
- Build statistical and machine-learning models, use NLP, and automate solutions to address complex business problems
- Write complex SQL searches across databases and use APIs to extract data
- Scrape web sources and prepare unstructured information for analysis
- Use automation and machine learning to organize data, forecast scenarios, and inform recommendations
What you bring
- Hold an active TS/SCI clearance with polygraph
- Bring a bachelor's degree plus twelve to fifteen years of relevant work, or a master's plus ten to thirteen years
- Have practical Python experience, strong SQL and data-extraction skills, and experience with social network analysis
- Have experience in supervised and unsupervised learning, NLP, predictive modeling, and required data visualization tools
Who this fits
This role suits an experienced data scientist comfortable tackling complex analysis and automation work in a fast-moving team. It is based in McLean, Virginia, and requires TS/SCI clearance with polygraph.
From the employer
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, 2026For 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 - $237,350.00The 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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