Data Scientist in Fairfax

Energy Jobline ZR; Fairfax (VA); On-site; USD 108,000 - 195,000; Full time

Benefits offered by this job

Health insurance

Paid Time Off

401K with 6% company match

Flexible schedules

Education and Training Support

Parental Paid Leave

Job summary

Leidos in McLean, VA is seeking a Data Scientist to join the Intel Sector Analysis Solutions Business Area (ASBA). You will work on security-focused data science projects and collaborate with a multidisciplinary team to deliver analytic solutions.

Responsibilities include building ML models, NLP, SQL queries, web scraping, automation, and leveraging AWS and Git. Must have TS/SCI with polygraph; strong Python, SNA, visualization skills.

Qualifications

• TS/SCI with Polygraph clearance.
• BS degree and 8–12 years of relevant technical experience or Master’s with 6–10 years of relevant experience.
• Experience with Python is required.
• Social network analysis (SNA) experience.
• Strong SQL skills and experience with relational databases and APIs for data extraction.
• Experience with supervised and unsupervised learning and NLP; familiarity with spaCy, HuggingFace, NLTK, or TensorFlow.
• Experience with statistics, probability, predictive modeling, and data architecture.
• Proficiency with data visualization tools (Tableau, Plotly, Seaborn, Matplotlib).

Responsibilities

• Build statistical and machine learning models, including NLP, and develop automated solutions for complex challenges.
• Construct and execute complex database search queries across multiple databases using SQL and APIs.
• Perform web scraping and process unstructured data.
• Apply automation and machine learning to manage data, predict scenarios, and make data-driven recommendations.
• Learn and leverage technologies including AWS and Git.

Skills

Python

SQL

NLP

Machine Learning

SNA

Data Visualization

AWS

Git

Statistics

Web Scraping

Education

Bachelor's degree in a technical field

Master’s degree in a technical field

Tools

spaCy

Hugging Face

NLTK

TensorFlow

Tableau

Plotly

Seaborn

Matplotlib

AWS

Git

APIs

Job description

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 Security.

Responsibilities Include:

• Build statistical and machine learning models, conducting natural 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 8 – 12 years relevant technical experience or Master’s with 6 – 10 years of 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 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: July 31, 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 $107,900.00 - $195,050.00

The Leidos pay range for this job level is a general guideline onlyand 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, 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 , , , , , citizenship, , physical or mental , medical condition, genetic information, , family structure, marital status, ancestry, domestic partner status, , 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.