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% company match

Flexible schedules

Discounted stock purchase plans

Technical upskilling

Education and training support

Parental paid leave

Job summary

Leidos in McLean, VA is seeking a Data Scientist to join a fast-paced team focused on national security projects. You will build ML models, perform NLP tasks, and construct data pipelines across multiple databases using SQL and APIs.

The role demands a TS/SCI with Polygraph, strong Python and SQL skills, and experience with NLP libraries, data visualization tools, and statistical methods for predictive insights.

Qualifications

• TS/SCI with Polygraph required.
• BS degree with 12–15 years of relevant experience or Master’s with 10–13 years; a Doctorate in a technical domain may be possessed.
• 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 NLP libraries/tools (spaCy, Hugging Face, NLTK, TensorFlow).
• Experience with frequentist statistics, probability and predictive modeling; knowledge of data architecture and statistical methods.
• Proficiency with data visualization tools (Tableau, Plotly, Seaborn, Matplotlib).

Responsibilities

• Build statistical and machine learning models; develop NLP and automated data solutions.
• Construct and execute complex SQL queries and API data extraction.
• Perform web scraping and processing of unstructured data.
• Leverage automation and ML to manage data and generate data-driven recommendations.
• Learn and apply AWS and Git technologies.

Skills

Python programming

Social network analysis

Supervised learning

Unsupervised learning

NLP

Statistics

Data visualization

Education

Bachelor's degree

Master's degree

Doctorate (optional)

Tools

spaCy

Hugging Face

NLTK

TensorFlow

Job description

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

• 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.

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.

Pay Range

Pay Range $131,300.00 - $237,350.00

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, 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.