Senior Data Scientist

Leidos•Chantilly, VA

32d

About The Position

Leidos is seeking a Senior Data Scientist to provide technical leadership and advanced analytics expertise in support of mission-critical national security programs. This role supports customers operating in classified environments and requires close collaboration with subject matter experts, designers, engineers, analysts, and mission stakeholders to deliver innovative, operationally relevant data science and AI solutions. The Senior Data Scientist will lead complex analytics efforts across the full solution lifecycle—from problem definition and requirements development through design, implementation, deployment, and ongoing operations and maintenance (O&M). The ideal candidate brings deep technical expertise, strong mission awareness, and the ability to communicate analytic insights to senior decision-makers.

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
Must hold an active TS/SCI clearance with Polygraph

Nice To Haves

Experience supporting intelligence community, Department of Defense, or other national security customers
Experience operating in classified computing environments
Expertise in one or more advanced domains such as machine learning, natural language processing, computer vision, graph analytics, or predictive modeling
Experience with cloud-based or enterprise analytics platforms
Demonstrated experience mentoring technical staff or serving as a technical lead
Demonstrated experience providing instruction, instructional design, or curriculum development

Responsibilities

Serve as a senior technical contributor and analytic lead on complex, high-impact national security programs
Partner with government customers and subject matter experts to define mission problems and analytic objectives
Translate ambiguous operational challenges into actionable data science requirements and solution designs
Design, develop, and deploy advanced analytics, statistical models, and machine learning solutions
Apply advanced data science techniques including exploratory data analysis, feature engineering, predictive modeling, hypothesis testing, and algorithm development
Integrate structured and unstructured data from diverse sources across classified environments
Communicate analytic findings, insights, and recommendations to senior technical and non-technical stakeholders
Support deployment, monitoring, and ongoing operations and maintenance (O&M) of analytic solutions
Mentor and guide junior data scientists and contribute to analytic standards, best practices, and reusable frameworks
Maintain awareness of emerging data science, AI, and big-data technologies relevant to national security missions