FULL_TIME

FEED

UNKNOWN

Demonstrated experience building supervised or weakly-supervised machine learning on real-world ("found") data, where you personally confronted the ground-truth/ labeling problem, not solely work on pre-labeled benchmark datasets. The unit of analysis is a window of packets, in effect, a field of packet bytes, much as an image is a field of pixels, and the central research problem is labeling the contents of that field: given a span of traffic, what is happening, is it an attack, and whose activity is it?

YEAR

Quantum Sky

Principal Detection Research Scientist, Cybersecurity

[AW]-iCims

The Mid-Level Data Analyst supports data-driven analysis, operations research, software integration and testing, and advanced analytics efforts. If you are an individual with a disability, or have known limitations related to pregnancy, childbirth, or related medical conditions, and would like to request a reasonable accommodation for any part of the employment process, please contact us at job-assist@akima.com or 571-353-7053 (information about job applications status is not available at this contact information).

NANA Regional Corporation Inc

Mid-Level Data Analyst

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Whether completing an immediate task, recognizing a process gap, recommending a solution, or flexing to support an immerging requirement, our clients need someone who can help manage operations while managing responses to external inquiriesin a timely manner. That is why we needyou,an experiencedApplied AI Scientist for Healthwho cancontributeexpertiseacross the full lifecycle of AI system development: data aggregation and curation, model training and benchmarking, and deployment and validation in real-world clinicalsettings.

Booz Allen is an advanced technology company. We build commercial-grade products and solutions for America’s most critical defense, civil, and national security priorities.

Booz Allen Hamilton

Applied AI Health Scientist

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Position: Computer Scientist LCAT: Senior Location: DIA HQ, Joint Base Anacostia Bolling Shift: No Required clearance: Active TS/SCI clearance Required education: Bachelor's degree Position Description: Reviews and evaluates advanced analytics for usage in DIA Finished Intelligence, leveraging senior experience in mathematics, statistics, data science, and/or artificial intelligence. Basic Qualifications: 8+ years of experience with scientific techniques such as mathematics, statics, information science, artificial intelligence, machine learning, probability modeling, data mining, data engineering, or data warehousing.

Nalley Consulting

Computer Scientist - Sr

The ideal candidate has strong experience in data analysis, dashboard development, and modern data tools, combined with excellent communication skills and the ability to work in a dynamic, multi‑directional environment. Note that Guidehouse will never charge a fee or require a money transfer at any stage of the recruitment process and does not collect fees from educational institutions for participation in a recruitment event.

Guidehouse Inc

Data Specialist

Works with data scientists, engineers, and mission stakeholders to process structured and unstructured data using Databricks, Spark, Palantir Foundry, Maven Smart Systems, or comparable platforms. Job Title: Data Engineer Location: Falls Church, VA Clearance Level: This position requires candidates to be U.S. citizens and to possess, at minimum, an active Secret security clearance.

Agile Defense

Data Engineer - Falls Church

Works with data scientists, engineers, and mission stakeholders to process structured and unstructured data using Databricks, Spark, Palantir Foundry, Maven Smart Systems, or comparable platforms. Job Title: Data Engineer Location: Fort Meade, MD Clearance Level: This position requires candidates to be U.S. citizens and to possess, at minimum, an active Secret security clearance.

Data Engineer - Fort Meade

Works with data scientists, engineers, and mission stakeholders to process structured and unstructured data using Databricks, Spark, Palantir Foundry, Maven Smart Systems, or comparable platforms. Job Title: Data Engineer Location: Arlington, VA Pentagon Clearance Level: This position requires candidates to be U.S. citizens and to possess, at minimum, an active Secret security clearance.

Data Engineer - Arlington (VA)

Typically has a Bachelor's degree in Computer Science, Information Systems, Data Engineering, or a related field (masters degree preferred)., and 3+ years of experience in data engineering or software engineering, with demonstrated experience in designing and managing complex data pipelines., or equivalent relevant work experience; e.g., each year of work experience may be substituted for each year of education required. You will help shape and deploy data pipelines, pre-processing workflows, feature engineering strategies, and machine learning services within secure, containerized environments.

Data Engineer - CYBERCOM

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Works with data scientists, engineers, and mission stakeholders to process structured and unstructured data using Databricks, Spark, Palantir Foundry, Maven Smart Systems, or comparable platforms. Experience with Python and SQL familiarity with data validation, data modeling, and data-quality practices; familiarity with Spark, PySpark, Databricks, or comparable technologies.

Data Engineer - DC

Data Engineer - Joint Staff

MITRE's Data Science and Engineering department is looking for applicants to bring their data science, data engineering, machine learning, artificial intelligence, and applied research skills to bear on solving problems of critical national importance. Hands-on proficiency with advanced Data Science techniques, including Machine Learning (e.g., supervised, unsupervised, deep learning, reinforcement learning), anomaly detection, statistical analysis, and/or analysis of very large datasets.

The MITRE Corporation

Data Science And Engineering Intern

The company is recognized as a Leader in the inaugural 2026 Gartner Magic Quadrant for Endpoint Management Tools, as a Leader in the IDC MarketScape: Worldwide Client Endpoint Management Software for Windows Device Management 2025-2026 Vendor Assessment, and as a Leader in The Forrester Wave. This position follows the Company's hybrid schedule which currently requires employees to work in the office at one of the following locations a minimum of three days per week: Addison, TX; Bellevue, WA; Durham, NC; Emeryville, CA; or Reston, VA.

Tanium Inc

AI Research Scientist

IDA/CCS and its siblings, the Centers for Communications Research, constitute a non-profit Federally Funded Research and Development Center (FFRDC) that operates in the public interest, free from organizational conflicts of interest, and can therefore assist the Department of Defense in ways that industry and for-profit contractors cannot. by leading SCAMPs, workshops, or sustained efforts; writing expository papers; serving as a liaison to academic departments; recruiting and interviewing potential researchers; arranging for external speakers; and giving out briefs on conferences attended.

Institute for Defense Analyses

Research Computer Scientist - IDA Center For Computing Sciences

With clients including NASA, DARPA, AWS, and the DoW, we leverage our cutting-edge research to deliver high assurance solutions and tools that enhance security, reliability, and operational efficiency across sectors including aerospace & defense, healthcare, semiconductors, and fintech. Who We Are: From building digital engineering tools that make space exploration safer to verifying cryptographic libraries that protect some of the world’s most valuable data, Galois develops technology to guarantee the trustworthiness of systems where failure is unacceptable.

Galois, Inc.

Principal Scientist

Tool Chain Mastery: Employ a specialized toolchain for analysis, including disk imagers, virtual machine managers, network scanners, and debuggers to perform end-to-end exploitation. A degree within one of the following fields is highly desired: Information Technology, Cybersecurity, Computer Science, Information Systems, Data Science, or Software Engineering.

Marathon TS, Inc.

Senior Computer and Information Research Scientist

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As an FDDS Manager at Air, you will lead and grow a team of skilled Forward Deployed Data Scientists (FDDSs), working on both agentic AI and classical data science methods, and ensuring readiness solutions are delivered to our customers through Air’s Enterprise Readiness platform. Doing this job well requires customer obsession, a strong need to solve problems, a passion for building high-functioning teams and an ability to deliver under pressure and in ambiguous environments.

Software Engineering Manager, Forward Deployed

Bachelor’s degree in systems Engineering or in related technical or scientific fields such as engineering, physics, mathematics, operations research, engineering management, Computer Science, Information Technology, Business, Management Information Systems, or related STEM degree program, or an additional 4 years of related data/systems engineering experience. Determine/monitor MAP accuracy by conducting queries against data holdings in native systems and using the System User Interface (UI), API, Postgres and Elasticsearch database applications.

Select Search Associates

Data Science Analyst/Engineer

Managing development teams in building healthcare AI and GenAI solutions, including analytical modeling, prompt engineering, Python-based development, testing, communication of results to clinical and operational stakeholders, front-end and back-end integration, and iterative use case development with health system clients; Documenting and analyzing healthcare business processes - across clinical operations, and population health programs - to identify AI and GenAI opportunities, gather requirements, define initial hypotheses, and develop solution approaches tailored to health system workflows; Collaborating with health system client teams - including clinical informatics, population health, and IT leaders - to understand their business and clinical problems and select the appropriate models, LLMs, and approaches for AI/GenAI use cases; Designing and solutioning AI/GenAI architectures for health system clients, including RAG-based clinical knowledge retrieval systems, agentic AI workflows for care management and revenue cycle automation, and custom LLM application builds with appropriate PHI safeguards; Managing teams to process healthcare unstructured and structured data - including clinical notes, discharge summaries, claims records, EHR data, and ADT feeds - for use as LLM context, including embedding of large clinical text corpora, generative SQL query development, and building connectors to EHR back-end databases; Managing daily operations of a global healthcare data science team on client engagements, reviewing developed models, providing feedback, and assisting in analysis of clinical and operational outcomes; Directing data engineers and other data scientists to deliver efficient, HIPAA-compliant solutions that meet health system client requirements for clinical, financial, and operational AI use cases; Leading and contributing to development of proof of concepts, pilots, and production use cases for health system clients - spanning clinical decision support, prior authorization automation, patient risk scoring, workforce optimization, and throughput modeling - while working in cross-functional teams; Facilitating and conducting executive-level presentations to health system leadership showcasing GenAI and ML solution capabilities, use case development progress, model performance, and recommended next steps; Structuring, writing, communicating, and facilitating client presentations that translate complex AI and ML concepts into clear clinical and business value narratives for health system audiences; and, Managing associates and senior associates through coaching, providing feedback, and guiding work performance, with an emphasis on developing healthcare domain knowledge alongside technical AI and ML capabilities. You will architect and build production-grade RAG pipelines, MCP connections, agentic AI workflows, and MLOps frameworks, managing daily operations across global delivery teams while engaging health system leaders at the executive level to ensure measurable clinical and operational impact.

PwC’s accounting practice originated in London well over a century ago. As times changed and PwC expanded worldwide, our commitment to clients—like you—never wavered. With us, you’re always supported by a global network of more than 223,000 people in 157 countries with one goal: to help your business thrive.

PwC’s professional services include audit and assurance, tax and consulting that cover such areas as cybersecurity and privacy, human resources, deals and forensics. We help resolve complex issues and identify opportunities across these industries.

Let’s combine your ​aspirations with our world-class capabilities to achieve your goals.

Applied AI Health Data System Engineer-Senior Manager

Pay Range : There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. We are seeking a highly-skilled Data Reporting Specialist/Data Scientist, responsible for creating and maintaining reports, data visualizations, and dashboards using HR data sources.

CACI provides information solutions and services in support of national security missions and government transformation for Intelligence, Defense, and Federal Civilian customers. A member of the Fortune 1000 Largest Companies, the Russell 2000 Index, and the S&amp;P SmallCap 600 Index, CACI provides dynamic careers for over 15,800 employees working in over 120 offices worldwide. Visit <a href="http://www.caci.com" target="_blank" itemprop="url" mns_rt="Company">www.caci.com</a>. 
 
 We strive to sustain a corporate culture based on integrity - one that's focused on treating customers ethically and making their priorities our priorities. We pride ourselves in finding and hiring people with the highest intellectual capital, and providing them with challenging opportunities and encouraging their innovation and initiative.

Data Scientist Jobs in Mclean, VA

Principal Detection Research Scientist, Cybersecurity Quantum Sky

Mid-Level Data Analyst NANA Regional Corporation Inc

Applied AI Health Scientist Booz Allen Hamilton

Computer Scientist - Sr Nalley Consulting

Data Specialist Guidehouse Inc

Data Engineer - Falls Church Agile Defense

Data Engineer - Fort Meade Agile Defense

Data Engineer - Arlington (VA) Agile Defense

Data Engineer - CYBERCOM Agile Defense

Data Engineer - DC Agile Defense

Data Engineer - Joint Staff Agile Defense

Data Science And Engineering Intern The MITRE Corporation

AI Research Scientist Tanium Inc

Research Computer Scientist - IDA Center For Computing Sciences Institute for Defense Analyses

Principal Scientist Galois, Inc.

Senior Computer and Information Research Scientist Marathon TS, Inc.

Software Engineering Manager, Forward Deployed Air

Data Science Analyst/Engineer Select Search Associates

Applied AI Health Data System Engineer-Senior Manager PwC

Data Visualization and Reporting CACI

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