Scientist Jobs in Washington, DC

DCS Corporation

Washington, DC

Master's degree or PhD in electrical engineering, physics, optics or a related field and 4 years of experience (master's degree)/2 years of experience (PhD) in optical systems or related work. DCS Corporation is looking for an Optical Scientist to develop novel sensing techniques for military applications.

U of C NORC

Washington, DC

Guide clients in their development and implementation of value-based payment methods or alternative payment models, including such elements as patient attribution, risk adjustment, cost calculations, and tracking how payment flows among stakeholders and how payment supports improvements in access and quality. Our expert team includes social scientists that acquire, collect, and analyze data from health care organizations and patients; evaluators; health services researchers; health-policy analysts; and professionals with first-hand experience running and supporting health care programs.

Johns Hopkins Applied Physics Laboratory (APL)

$105000 - $290000

Laurel, MD

Support ongoing programs in quantum information science by making immediate contributions to efforts that are looking to implement quantum characterization, control, and error protection strategies in qubit systems. The Johns Hopkins University Applied Physics Laboratory (APL) brings world-class expertise to our nation’s most critical defense, security, space and science challenges.

Johns Hopkins Applied Physics Laboratory (APL)

$105000 - $290000

Laurel, MD

As a member of our team, you’ll contribute to the development and evaluation of quantum error correcting codes (QECCs), working closely with theorists and experimentalists to bridge knowledge gaps and address practical limitations of quantum error correction on current and future hardware platforms. You will join our hardworking team of quantum scientists who are passionate about building new and exciting solutions to expand the state-of-the-art in quantum science.

U of C NORC

Washington, DC

Knowledge/experience of estimating net of discounts and rebate Medicare Part D drug prices, Medicare Part B prices, Medicaid best prices from WAC and AMP, Pharmacy Benefits Manager (PBM) margins, net of discounts and rebate commercial prices, 340B prices, and volume of duplicates in Medicare and Medicaid. NORC’s expert staff has extensive knowledge of all aspects of health care delivery, from private marketplaces and employer-sponsored insurance to Medicare and Medicaid; from large health care systems to small clinics; and from the needs of children to those of older adults, people with disabilities, and ethnic and racial minorities.

Leidos

$92300 - $166850

Alexandria, VA

As a GEOINT Innovation Data Scientist, you will help shape the next generation of geospatial capabilities by applying data science to real-world intelligence challenges, with a strong emphasis on machine learning (ML) and natural language processing (NLP) in support of NextGen FMI AI efforts. They will design and develop solutions to complex problems using applied statistics, machine learning techniques, and algorithm development, while collaborating with teammates and customers to translate complex findings into mission-relevant insights.

Fusion Medical Staffing

Washington, DC

The Clinical Laboratory Scientist (CLS) is responsible for conducting and overseeing a wide range of laboratory tests across multiple disciplines, including chemistry, hematology, microbiology, immunology, and blood banking. Fusion Medical Staffing is seeking a skilled Clinical Laboratory Scientist (CLS) – Generalist for a 13-week travel assignment in Washington, District Of Columbia.

Synergistic it

$78000 - $127000

Arlington, VA

SynergisticIT focuses on roles such as entry-level software programmers, Java full stack developers, Python/Java developers, Data Analysts, Data Engineers, Data Scientists, and Machine Learning Engineers. Many candidates spend months learning frameworks and finishing courses, only to freeze during technical screens, system questions, or behavioral rounds.

Leidos

$92300 - $166850

Springfield, VA

If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com. February 25, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Capgemini Government Solutions

Washington, DC

Minimum of three (3) years of professional experience (relevant advanced degrees may substitute equivalent number of years) with data science, AI/ML, or deep learning delivery responsibilities such as: Designing and developing data models and algorithms for multi-objective optimization and decision making. The disclosed range takes into account the wide range of factors that are considered in making compensation decisions including, but not limited to, geographic location, relevant education, qualifications, certifications, experience, skills, seniority, performance, sales or revenue-based metrics, and business or organizational needs.

Fusion Medical Staffing

$1645 - $1891

Washington, DC

The Medical Laboratory Technician assists in performing routine and moderately complex laboratory tests across multiple diagnostic areas, including chemistry, hematology, microbiology, immunology, and toxicology. Your passion for helping others deserves a partner just as committed to supporting you — that’s why we offer day one insurance, $0 copay for mental health services, scholarships and awards, exclusive discounts, and more.

Cliff Services Inc

$55

Mc Lean, VA

Deep understanding of Azure and AWS cost structures and optimization levers. 5+ years in data science, analytics, or cloud financial operations.

Johns Hopkins Applied Physics Laboratory (APL)

$105000 - $245000

Laurel, MD

We develop, analyze, and evaluate systems that employ a range of analytical techniques, including as machine learning and artificial intelligence (AI/ML), to extract insight from disparate data sets such as commercial telemetry data, video content, and computer network traffic. The Cyber-Physical Systems Development Group (QNN) at APL is seeking a Multimodal Data Analytics Engineer to develop and deploy novel data analytic capabilities to our sponsors in support of this mission.

Johns Hopkins Applied Physics Laboratory (APL)

$62900 - $180300

Laurel, MD

You’ll collaborate with technical experts to identify information needs, design research strategies, and deliver actionable insights that advance APL’s work in defense, security, space, and science. APL provides eligible staff with a comprehensive benefits package including retirement plans, paid time off, medical, dental, vision, life insurance, short-term disability, long-term disability, flexible spending accounts, education assistance, and training and development.

Johns Hopkins Applied Physics Laboratory (APL)

$100000 - $245000

Laurel, MD

Are you interested in the research, development, design, analysis and testing of Position, Velocity, Attitude, and Timing (PVAT) systems like Global Navigation Satellite System (GNSS) receivers and navigation hardware and software?. Collaborate with a team of engineers to integrate, test and evaluate GNSS receiver and navigation hardware systems in APL test facilities, at field test sites, and external ground test facilities.

ETS

Washington, DC

We seek quantitative scientists with expertise in one or more of the following areas: causal inference and quasi-experimental designs in education policy; analysis of large-scale assessment data (e.g., NAEP, PISA, PIAAC) and equity-forward reporting; responsible AI/ML for policy and practice (including bias detection and mitigation); measurement and validation of durable skills and civic capacities; longitudinal systems analysis; and program evaluation that translates research into actionable policy guidance. Through strategic acquisitions, we've expanded our global capabilities: PSI strengthens our workforce assessment solutions, while Edusoft, Kira Talent, Pipplet, Vericant, and Wheebox enhance our educational technology and assessment platforms across critical markets worldwide.

Peraton

$135000 - $216000

Annapolis Junction, Maryland

Demonstratable proficiency in working with state-of-the-art large language models at the API level (During interviews on MS Teams, candidates are expected to use VSCode to execute tasks through programmatic interactions with OpenAI tool/function calling API). Whether you’re supporting safety validation efforts or leading teams on major FAA programs, your work will directly impact the millions of passengers and aviation professionals who rely on safe, efficient airspace operations every day.

Peraton

$146000 - $234000

Annapolis Junction, Maryland

Demonstratable proficiency in working with state-of-the-art large language models at the API level (During interviews on MS Teams, candidates are expected to use VSCode to execute tasks through programmatic interactions with OpenAI tool/function calling API). Whether you’re supporting safety validation efforts or leading teams on major FAA programs, your work will directly impact the millions of passengers and aviation professionals who rely on safe, efficient airspace operations every day.

Graham Technologies

Bethesda, MD

Graham Technologies is seeking a Senior Functional Analyst (Research Scientist) to provide scientific and analytical support to our customers in advancing strategic research initiatives and evaluating program effectiveness in support of Warfighter Brain Health objectives. At Graham Technologies, we've built a family-oriented environment where team members are encouraged to maintain a healthy work-life balance, pursue their passions, and grow professionally through flexible schedules, continued education, and a strong sense of community.

George Mason University

Fairfax, Virginia

Applies machine learning (ML) and artificial intelligence (AI) techniques to enhance traditional chemical transport modeling systems; Improves prediction accuracy and computational efficiency through fine-resolution data fusion, bias correction, and model surrogate development; and. Knowledge of Community Multiscale Air Quality program (CMAQ), Sparse Matrix Operator Kerner Emissions program (SMOKE), Data Assimilation, Surrogate Tools, and other modeling skillsets.

Maryland Treatment Centers, Inc.

Rockville, MD

Maryland Treatment Centers (MTC) is seeking a full-time Research Scientist and Clinical Psychologist to support innovative addiction research within our Rockville treatment center. This role offers the chance to develop a research-oriented career in substance use disorder (SUD) and trauma treatment while working alongside a multidisciplinary clinical team.

Peraton

$176000 - $282000

College Park, Maryland

Responsibilities: Peraton Labs is seeking a poly cleared Principal RF Research Scientist to lead and execute cutting-edge R&D in Radio Frequency Machine Learning (RFML), Digital Signal Processing (DSP), and/or Software Defined Radio (SDR). Leading or co-leading the technical design, development, and prototyping of RF sensing/communications solutions including detection/classification, waveform characterization, interference mitigation, spectrum situational awareness, link analysis, or related mission applications.

GTT

Gaithersburg, MD

This role supports early oncology initiatives through hands-on laboratory work and cross-functional collaboration, contributing to patient-centric model systems that inform drug development decisions. GTT is a minority-owned staffing firm and a subsidiary of Chenega Corporation, a Native American-owned company in Alaska.

Peraton

$146000 - $234000

College Park, Maryland

You will work on cutting-edge research and development projects in a collaborative and innovative team environment and will be instrumental in solving the most complex challenges in a broad range of initiatives in computer network defense, secure-by-design techniques, and cyber operations and experimentation platforms. Responsibilities: Peraton Labs is seeking an experienced Senior Research Scientist to join our team supporting fully cleared research efforts for our Maryland customer.

Peraton

$104000 - $166000

Annapolis Junction, Maryland

You will work closely with Labs internal Agentic AI teams in support of the Program CTO to perform analysis, build software, develop prototypes, and contribute to mission-relevant solutions. As the world’s leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies.

Usalco

Baltimore, Maryland

Our Research & Development organization is based at Usalco's flagship Baltimore Research & Technology Center, a state‑of‑the‑art facility dedicated to advancing coagulation science, developing next‑generation water treatment solutions, and translating laboratory innovation into full‑scale commercial impact. Originate and lead applied research programs aligned with business needs, from early‑stage concept development through laboratory validation, scale‑up support, and product launch/commercialization, with clear ownership to drive projects to achieve defined technical and business goals.

Chenega Corporation

Ft Detrick, MD

Perform assessments of viral replication using plaque assays and RT-qPCR; conduct transcriptomic analyses (spatial, single-cell, and/or bulk); evaluate blood chemistry; and measure viral antigens, antiviral antibodies, cytokines, and chemokines using Luminex and ELISA platforms. Perform molecular biology techniques including PCR, qRT-PCR, cloning, transformations, fluorescence in-situ hybridization (FISH), flow cytometry, Western blotting, immunofluorescence assays (IFAs), high-content imaging, plaque assays, PRNTs, and related methodologies.

Apogee Solutions

Bethesda, MD

Apogee Solutions, a woman-owned small business, is seeking a Research Scientist in the National Capital Region to support the National Intrepid Center of Excellence (NICoE), which is a state-of-the-art institute that provides clinical research informed care, intensive outpatient evaluation, advanced diagnostics, comprehensive treatment plans, treatment modalities, and long-term follow-up for patients suffering from Traumatic Brain Injury (TBI) and Psychological Health (PH) issues. Often, the NICoE serves patients that have failed other more traditional treatments; therefore, a multitude of novel approaches need to be available to enhance the diagnostic and therapeutic approaches to meet the complex challenges experienced by this unique patient population.

CATHEXIS

Tysons, VA

The Data Scientist/ML Engineer will work directly with data scientists, software engineers, and subject matter experts in the definition of new analytics capabilities able to provide our federal customers with the information they need to make proper decisions and enable their digital transformation. Hands-on experience deploying and operating applications using IaaS and PaaS on major cloud providers, such as Amazon AWS, Microsoft Azure, or Google Cloud Services.

Peraton

$135000 - $216000

Herndon, Virginia

Peraton offers enhanced benefits to employees working on this critical National Security program, which include heavily subsidized employee benefits coverage for you and your dependents, 25 days of PTO accrued annually up to a generous PTO cap and eligible to participate in an attractive bonus plan. Unlike a traditional production-focused data science role, this position will emphasize research, prototyping, experimentation, and transitioning innovative AI capabilities into operational mission systems.

Rapid

Baltimore, MD

We develop advanced software and services to support imaging and dosimetry of radiopharmaceutical therapy (RPT)—a transformative approach to cancer care that delivers targeted radiation to tumors with unprecedented accuracy. ResponsibilitiesLead and support projects developing and validating quantitative SPECT methods using data from conventional and novel scanner geometries.

Gables Search Group

Rockville, MD

Pioneer novel approaches to nucleic acid amplification and detection, moving beyond conventional methodologies to develop next-generation diagnostic platforms. Design and optimize breakthrough assays that leverage deep understanding of enzyme engineering, nucleic acid chemistry, and molecular binding interactions.

Highmark Health

Annapolis, MD

Leveraging your profound expertise in graph databases (e.g., Neo4j, ArangoDB, Amazon Neptune, Ontotext GraphDB), distributed graph processing frameworks (e.g., Apache Spark GraphX, Dask-Graph), and leading GML libraries (e.g., PyTorch Geometric, DGL, Spektral), you will conduct in-depth research, construct sophisticated predictive, prescriptive, and diagnostic models directly on graph structures. You will proactively identify opportunities to construct and leverage comprehensive healthcare knowledge graphs, integrating diverse patient, provider, claims, and clinical data to uncover hidden patterns, propagate insights through networks, and develop groundbreaking analytical solutions that exploit the rich, multi-modal structures within healthcare.

VantageScore

Washington, DC

We are seeking a highly motivated and innovative Senior Data Scientist (AI/ML) to join our brilliant team of analytics professionals and developers, supporting the cutting-edge development of credit scoring models, generation of unique insights, and delivery of transformative technologies rooted in innovative value propositions. You'll partner cross-functionally to deliver scalable AI-powered products and solutions that redefine how consumers engage with credit - ensuring our models are accurate, explainable, and aligned with our mission to empower responsible lending and financial inclusion.

ActioNet, Inc

$180000 - $255000

Washington, DC

ActioNet is a CMMI-DEV Level 4, CMMI-SVC Level 4, ISO 20000, ISO 27001, ISO 9001, HDI-certified, woman-owned IT Solutions Provider with strong qualifications and expertise in Agile Software Engineering, Cloud Solutions, Cyber Security, and IT Managed Services. Minimum Eight (8) years of relevant experience with a BS in Data Science, Mathematics, Information Science, Statistics, Engineering, Business Analytics, or related degree; OR Four (4) years of relevant experience with an MS degree in Data Science, Engineering, Mathematics, or related degree.

GRVTY

$155000 - $185000

Annapolis Junction, MD

physics, chemistry, biology, astronomy), or other science disciplines with a substantial computational component (i.e. behavioral, social, or life) may be considered if it included a concentration of coursework (5 or more courses) in advanced Mathematics (typically 300 level or higher, such as linear algebra, probability and statistics, machine learning) and/or computer science (e.g. Through analytic modeling, statistical analysis, programming, and/or another appropriate scientific method, develop and implement qualitative and quantitative methods for characterizing, exploring, and assessing large datasets in various states of organization, cleanliness, and structure that account for the unique features and limitations inherent in Government data holdings.

GRVTY

$115000 - $145000

Annapolis Junction, MD

Relevant experience must be in designing/implementing machine learning, data science, advanced analytical algorithms, programming (skill in at least one high-level language (e.g., Python)), statistical analysis (e.g., variability, sampling error, inference, hypothesis testing, EDA, application of linear models), data management (e.g., data cleaning and transformation), data mining, data modeling and assessment, artificial intelligence, and/or software engineering. physics, chemistry, biology, astronomy), or other science disciplines with a substantial computational component (i.e. behavioral, social, or life) may be considered if it included a concentration of coursework (5 or more courses) in advanced Mathematics (typically 300 level or higher, such as linear algebra, probability and statistics, machine learning) and/or computer science (e.g.

VantageScore

Washington, DC

We are seeking a highly motivated Senior Data Scientist (Credit File Expert) to join our team of analytics professionals and developers dedicated to advancing the science of credit scoring, uncovering unique insights, and creating next-generation products grounded in innovative value propositions. An industry thought leader and technology innovation leader, the company's most recent models score approximately 94 percent of all adults 18 and older - including 33 million more people than conventional models - without sacrificing safety and soundness.

Independent Software

Annapolis Junction, MD

You will leverage Python, Jupyter Notebooks, and modern data science toolsets to develop analytical models, automate workflows, and generate visual insights. As a Data Scientist Level 3 with Independent Software, you will play a mission critical role in applying advanced data science, AI/ML, and analytics expertise to complex national security challenges.

Independent Software

Annapolis Junction, MD

In this role, you will leverage your expertise in Python, workflow automation, data manipulation, and visualization—particularly within Jupyter Notebooks—to support data-driven decision making and operational efficiency. At Independent Software, you will work in a collaborative environment where innovation, technical excellence, and mission impact intersect, helping protect national security through advanced analytics and data science.

Captivation Software

$130000 - $270000

Annapolis Junction, MD

Machine Learning: Knowledge of machine learning algorithms and frameworks (such as TensorFlow and Scikit-Learn) is vital for building predictive models and automating decision-making processes. Database Management: Familiarity with SQL and database management systems (like PostgreSQL and MongoDB) is essential for extracting and manipulating data stored in relational databases.

GRVTY

Springfield, VA

The ideal candidate brings deep analytic expertise, advanced data science capabilities, and demonstrated experience supporting national security objectives across GEOINT, multi-INT, and enterprise-level analytic environments. GEOINT / Multi-INT Core Tradecraft Support GEOINT analysis using imagery, spatio-temporal datasets, and multi-source intelligence to uncover relationships, trends, and mission-relevant events.

GRVTY

Chantilly, VA

We're particularly interested in people with any of the following experience: - developing AI / ML models (neural networks, tree based algorithms, etc.); - conducting data analysis in the fields of Computer Vision, NLP, or audio signal processing; - doing data ingest and ETL into sponsor environments; or. Our team is charged with taking commercial and academic innovation high-side, in domains of Artificial Intelligence / Machine Learning (AI / ML) such as Computer Vision (Image and Video Processing), Natural Language Processing (NLP), and Audio Modeling.

Ardent Eagle Solutions

Suitland, MD, Maryland

Overview: The Data Scientist/Tester will support test planning, design, and execution; assist with test automation and tools management; provide defect tracking and quality assurance oversight; engage in collaboration, training, and stakeholder engagement; and support risk management, analysis, and continuous improvement to ensure systems are reliable, production-ready, and compliant with USCB DCMD test coordination requirements. The branch coordinates solution-level testing (User Acceptance Testing (UAT), integration, exception, readiness testing) and supports both Headquarters (HQ) and field operations for the Decennial Census.

Acclaim Technical Services

Annapolis Junction, MD

Pay Range: There are many 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. Degree must be in: Mathematics, Applied Mathematics, Statistics/Applied Statistics, Machine Learning, Data Science, Operations Research or Computer Science.

Intelliforce-IT Solutions Group

Annapolis Junction, MD

As a Systems Engineer here, you won’t just contribute to projects—you’ll help shape outcomes that make a real-world impact. You’ll collaborate with engineers, analysts, and mission stakeholders to build models, uncover patterns, and deliver insights that directly support operational decisions.

Precise Systems

Washington, DC

Powered by our highly skilled workforces, we provide expert consultation on network and weapons systems acquisition programs, maintenance/modernization programs, and sustainment programs with solutions in Digital Transformation, Advanced Engineering, Physical Sciences Research, Platform Lifecycle Support, and Technical Services. Precise Systems seeks a Mechanical Engineer/Material Scientist with expertise in Fracture Mechanics and Fatigue Analysis to serve our Naval Research Laboratory (NRL) customers in Washington D.C. This role performs on site, 5 days per week, in Washington D.C.

Humana

$71100 - $97800

Annapolis, MD

To ensure Home or Hybrid Home/Office employees’ ability to work effectively, the self-provided internet service of Home or Hybrid Home/Office employees must meet the following criteria: + At minimum, a download speed of 25 Mbps and an upload speed of 10 Mbps is required; wireless, wired cable or DSL connection is suggested. The Clinical Analytics team identifies opportunities and build solutions to improve clinical outcomes and lower costs for millions of Medicare Advantage beneficiaries leveraging data science & analytics, clinical expertise, strategic mindset, and rigorous study designs.

Meta

Washington, DC

Knowledge of quantitative and survey research methodologies (e.g., bias correction for surveys, survey sampling and design, regression modeling, causal inference with a survey outcome, shrinkage and regularization, designing and analyzing longitudinal panel surveys, behavioral data analysis). Applicants may include social scientists, applied statisticians, or other applied researchers with expertise in quantitative research methods, experience working with large datasets and relational databases, and experience with survey methodology (e.g., bias correction, sampling).