Senior Data Scientist

Leidos

Senior Data Scientist at Leidos supporting economic analysis of national importance through data science and statistics. Focusing on client needs using advanced statistics, machine learning, and data visualization.

Posted 6/6/2026full-timeRemote • 🇺🇸 United StatesSenior💰 $107,900 - $195,050 per yearWebsite

Tech Stack

Tools & technologies

AzureCloudPythonSQLTableau

About the role

Key responsibilities & impact

Partner with stakeholders to scope questions and assumptions, support solution design, and facilitate project execution.
Design and implement robust data ingestion, storage, integration, processing, retrieval, and management strategies for research datasets.
Build transparent, reproducible pipelines and analysis environments in cloud infrastructures.
Produce crisp exhibits and memos that explain methods, limitations, and uncertainty.
Facilitate and execute data-driven research by applying sophisticated statistical, machine learning, and computational methods to analyze complex datasets related to computer and information science.
Create compelling data visualizations and reports that convey complex research findings in a clear and accessible manner to both technical and non-technical stakeholders.
Support defensible analytics and econometric/causal inference workstreams, translating ambiguous business or legal questions into testable hypotheses and clear, client-ready findings.
Design and execute rigorous studies (e.g., difference-in-differences, panel models with fixed/random effects, instrumental variables/2SLS, time series/forecasting, etc.) to turn multi-source datasets into documented, auditable results.
Mentor teammates on best practices.
Stay updated on the latest academic research and industry advancements in data science, AI, and information systems, and apply relevant findings to ongoing projects.

Requirements

What you’ll need

Bachelors degree with 8+ years of applied data science experience or a Master’s degree with 6+ years of prior relevant experience.
Mastery of Python or R, statistical tools such as Stata, SAS and strong SQL.
Expertise with ML algorithms (e.g. model selection, evaluation, feature engineering, etc.)
Expertise with application of AI to deliver insights with optimal performance, cost savings, etc. using structured, unstructured data.
Expertise with data visualization tools (e.g. Tableau, Matplotlib).
Experience processing large datasets, deploying LLMs in government cloud data platforms (e.g. Azure ADLS/Databricks/Azure ML, or equivalents).
Comparative understanding of LLMs (e.g. Claude Code, ChatGPT), and tradeoffs in terms of capabilities, cost, and performance.
Familiarity with FISMA/NIST/Zero Trust security frameworks
U.S Citizenship required.
Excellent problem-solving skills and the ability to think critically and analytically to address complex research challenges.
Exceptional verbal and written communication skills and a bias toward rigor, clarity, and defensibility over black-box modeling are essential.
The ability to obtain a Principal Data Scientist (PDS) certification or equivalent within 120 days after start date with Leidos and ability to maintain.

Benefits

Comp & perks

competitive compensation
Health and Wellness programs
Income Protection
Paid Leave
Retirement

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

PythonRSQLStataSASmachine learningdata visualizationdata processingeconometricsstatistical analysis

Soft Skills

problem-solvingcritical thinkinganalytical skillscommunicationmentoringcollaborationattention to detailadaptabilityrigorclarity

Certifications

Principal Data Scientist (PDS)