Senior Data Scientist

The Senior Data Scientist role at Leidos is a technical leadership position focused on advanced analytics for mission-critical national security programs. The role spans the full solution lifecycle and includes mentoring junior data scientists. This onsite position is based in Chantilly, Virginia.

Responsibilities

• Act as a senior technical contributor and analytics lead on complex, high-impact national security initiatives
• Collaborate with government customers and subject matter experts to define mission problems and analytic objectives
• Translate ambiguous operational challenges into concrete data science requirements and solution designs
• Build and deploy advanced analytics, statistical models, and machine learning solutions
• Apply techniques such as exploratory data analysis, feature engineering, predictive modeling, hypothesis testing, and algorithm development
• Integrate structured and unstructured data from diverse sources within classified environments
• Present analytic findings, insights, and recommendations to senior technical and non-technical stakeholders
• Support deployment, monitoring, and ongoing operations and maintenance of analytic solutions
• Mentor junior data scientists and contribute to analytic standards, reusable frameworks, and best practices
• Stay informed about emerging data science, AI, and big-data technologies relevant to national security missions

Requirements

• Master’s degree in Data Science, Computer Science, Statistics, Mathematics, Engineering, or a related quantitative field with 15+ years of relevant experience; or Bachelor’s degree with 18+ years of relevant experience
• Extensive experience applying data science and advanced analytics to complex, mission-focused problems
• Expert-level proficiency in Python and/or R, including advanced data science and machine learning libraries
• Strong experience working with large, complex datasets from multiple sources
• Demonstrated ability to lead technical efforts and influence analytic direction on large or complex programs
• Strong written and verbal communication skills, including briefing senior leaders
• Active TS/SCI clearance with Polygraph

Technologies

• Python
• R

Benefits

• Competitive compensation
• Health and Wellness programs
• Income Protection
• Paid Leave
• Retirement

Salary

USD 154,050 - 278,475 per year