Data Scientist

Leidos; McLean (VA); On-site; USD 131,000 - 237,000; Full time

Benefits offered by this job

Paid time off

11 paid holidays

401K with 6% match

Immediate vesting

Flexible schedules

Discounted stock purchase plan

Technical upskilling

Education and training support

Parental paid leave

Job summary

Leidos in McLean, VA is seeking a Data Scientist with an entrepreneur’s mindset to support a fast-paced data science team focused on national security projects. The role emphasizes building ML models, NLP, and data-driven decision support within ASBA.

Candidates should have strong Python and SQL skills, experience with NLP, SNA, and data visualization, and be capable of working with AWS and API interfaces. Clearance and senior experience are required.

Qualifications

• Must have TS/SCI with Polygraph.
• Proficiency in Python and SQL for data extraction and modeling.
• Experience with NLP techniques and libraries (spaCy, Hugging Face, NLTK, TensorFlow).
• Strong background in statistics, ML, and data visualization.

Responsibilities

• Build statistical and machine learning models and NLP solutions.
• Construct and run complex SQL queries and API data extraction.
• Perform web scraping and process unstructured data.
• Apply automation and ML to manage data and generate data-driven recommendations.
• Learn and leverage AWS and Git technologies.

Skills

TS/SCI with Polygraph

Python

SQL

NLP

SNA

Data visualization

Statistics & modeling

Education

BS degree in a technical field

MS degree preferred

Tools

AWS

Git

APIs

Job 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.

• 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.

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

• Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement.

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.