Data Scientist CACIData ScientistBolling AFB, District of Columbia$82,100–$172,400 / yearJob Title: Data ScientistJob Category: ScienceTime Type: Full timeMinimum Clearance Required to Start: TS/SCI with PolygraphEmployee Type: RegularPercentage of Travel Required: Up to 10%Type of Travel: Local* * * CACI has an immediate need for a Data Scientist – Mid-level to join our mission critical team located at Bolling AFB in order to meet diverse mission sets in an ever-more complex and information-rich environment within the Defense Intelligence Analysis Program. 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.
Mid-Level Data Scientist Leidos Holdings Inc.Mid-Level Data ScientistSpringfield, VA$73,450–$132,775 / year1 - 3 years of demonstrated experience performing geospatial data management, including data type conversions coordinate systems in (latitude and longitude, UTM) and their conversions and knowledge of projections and their properties/conversions. Experience performing data analysis to examine data from a variety of angles to determine hidden values, weaknesses, trends, and or opportunities next line knowledge of ESRI, ArcGIS/ArcPro and Arc Server.
Technical Management Scientist/Engineer (Sme) GuidehouseTechnical Management Scientist/Engineer (Sme)Arlington, VAJob Family: Aerospace Engineering (AEE), Communications Engineering (COE), Development Operations (ESA), Electrical Engineering (ELE), IT Architecture/Cloud (ESA), Mathemeticians (MAT), Mechanical Engineering (MCE), Modeling & Simulation Engineering (MSE), Production, Industrial, Material Engineering (MAE), Production, Industrial, Material Engineering (PIE), Research Physicists (PHY), Research Scientists (SCI), Software Architecture (SYA), Software Engineering (STE), Software Engineering (SWE), Specialized Engineering (BEE), Specialized Engineering (CHE), Specialized Engineering (ENE), Specialized Engineering (NUC), Statisticians (STA), Subject Matter Experts- Professional (SMP), Subject Matter Experts- Technical (SMT), Systems Engineering (SYE), Technical Project Management (TPR), Test Engineering (TSE). What You Will Do: Guidehouse is seeking experts with experimental and/or theoretical experience developing new technologies or capabilities to provide Scientific Engineering Technical Assistance (SETA) to program managers at the Defense Advanced Research Projects Agency (DARPA) in one or more of the following areas: Quantum technology for computation, sensing, networking, or algorithms.
Data Scientist Elder ResearchData ScientistArlington, VAYou'll support a U.S. federal civilian agency that serves as the central authority on human capital across the federal workforce, helping advance strategic goals around modernizing its use of data, building a stronger analytics workforce across government, delivering trusted human-capital data products to agencies and employees, and strengthening data governance, privacy, and security. Develop, deploy, and maintain production ML and NLP models that surface insights from large volumes of human-capital and workforce data, directly supporting decisions made by federal agencies, employees, and the public.
Medical Laboratory Scientist Blood Bank GuidehouseMedical Laboratory Scientist Blood BankBethesda, MD$98,000–$163,000 / yearPerform pre-analytical, analytical, and post-analytical laboratory testing using automated and manual methods in compliance with regulatory and accrediting agency requirements, including ABO/Rh typing, direct antiglobulin testing, antibody screening and identification, red blood cell (RBC) phenotyping, elutions, crossmatches, and isohemagglutinin titers. Prepare blood components from whole blood collections, including frozen plasma, leukocyte-reduced red blood cells, buffy coat, and pathogen-reduced platelets.
Workforce & Sentiment Senior Data Scientist Diligent SolutionsWorkforce & Sentiment Senior Data ScientistAshburn, VAFull timeAnalyzes workforce pipelines, engagement metrics, and labor trends to support program success. Experience supporting data center or infrastructure workforce planning .
Associate Scientist I – Bacterial Mutation InotivAssociate Scientist I – Bacterial MutationRockville, MarylandBachelor’s degree in a scientific discipline (i.e., Biology, Chemistry, Biochemistry, etc.) with 1+ years’ experience working in a research laboratory. Associate degree in a scientific discipline (i.e., Biology, Chemistry, Biochemistry, etc.) with 3+ years’ experience working in a research laboratory.
Senior Scientist - Protein Expression Gables Search GroupSenior Scientist - Protein ExpressionRockville, MDWhat You’ll Do • Lead development and optimization of bacterial cell-free protein expression workflows across a variety of protein targets • Improve extract preparation methods to increase protein yield, solubility, and functional activity • Design high-throughput screening strategies for constructs, chaperones, and reaction conditions • Analyze protein expression and quality using SDS-PAGE, Western blot, ELISA, capillary electrophoresis, and related methods • Troubleshoot complex expression challenges and recommend new technologies, platforms, and approaches • Lead scientific projects while partnering with multidisciplinary research teams • Document experimental results and contribute to SOPs, technical reports, and patent-related materials What We’re Looking For • PhD in Biochemistry, Molecular Biology, Protein Science, or a closely related discipline • Hands-on expertise with bacterial cell-free protein synthesis, including optimization and troubleshooting • Strong knowledge of E. coli molecular biology, protein expression, and extract preparation • Experience with automated or high-throughput screening platforms • Strong protein characterization and analytical laboratory skills • Demonstrated ability to independently lead research initiatives and collaborate across scientific teams Compensation Base salary: $115,000-$135,000 plus bonus Relocation assistance available Apply to learn more about this opportunity. We are recruiting for a Senior Scientis t with deep expertise in bacterial cell-free protein expression to join an innovative scientific team in Rockville, Maryland.
Senior Data Scientist Leidos Holdings Inc.Senior Data ScientistRockville, MD$131,300–$237,350 / yearWork with diverse data types (structured, unstructured, open source, digital media) and leverage modern tools such as Python, PyTorch, Scikit-learn, LLM frameworks, and geospatial analytics platforms. Familiarity with Azure/C2S, hardware platforms (CPUs, GPUs, FPGAs), and advanced analytical methodologies (social network analysis, supply chain analysis, NLP, classification algorithms, image processing).
NewExpert Data Scientist/Systems Engineer Markon SolutionsExpert Data Scientist/Systems EngineerChantilly, VA$190,000–$225,000 / yearOur growing reach extends across 17 states, 116 countries, and 5 continents, where our team of dynamic professionals collaborates to deliver unparalleled program and project management services. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.
NewAI Engineer/Scientist, Staff Seekr Technologies IncAI Engineer/Scientist, StaffReston, VAAvailable across cloud, on-premises, and edge environments, SeekrFlow reduces bias, strengthens data integrity, and simplifies model oversight so organizations can rely on trusted AI decisions in high-stakes settings that impact society's most sensitive and vital systems. Trusted by leading enterprises and government agencies, we partner with defense, finance, telecom, and critical infrastructure leaders to enable AI solutions that drive real-world results with unmatched transparency and control.
Senior Research Scientist (Pre-clinical) - 4DBio³ ODB The Geneva FoundationSenior Research Scientist (Pre-clinical) - 4DBio³ ODBRockville, MarylandAmong other projects, the Senior Research Scientist (Pre-clinical) will play a key leadership role on 4DBio³'s blood research portfolio that includes the On-Demand Blood project which is focused on developing the scientific understanding and bioengineering solutions to manufacture and/or optimize a full range of human blood products for use in austere environments. About The PositionThe Senior Research Scientist (Pre-clinical) serves as a scientific lead for pre-clinical research projects at the Uniformed Services University (USU) Center for Biotechnology (4DBio³), providing technical and management support and overseeing project execution.
NewSignal Processing Research Scientist RTXSignal Processing Research ScientistArlington, VirginiaThe team specializes in delivering networked sensor system solutions by combining a strong understanding of the underlying physics, high-fidelity modeling, simulation of complex signatures and propagation phenomenology, deep expertise in signal processing, EM and RF phenomenology, and computer science, proven capabilities in system development, and mature tools to enable rapid design cycles from theory to demonstration. Active and existing security clearance required on day 1 RTX BBN solves challenging problems of high importance to our customers in the Department of Defense, the Intelligence Community and Industry by rapidly prototyping systems for sensing complex physical phenomena, correlating them to events of interest, and producing high-value, actionable information from the sensed data.
Research Scientist AmentumResearch ScientistWashingtonAlgorithm Development & Prototyping: Utilize scientific programming languages (such as Matlab or Python) to rapidly prototype algorithms, analyze real-world acoustic or sensor data, and visualize results to validate theoretical approaches. Candidates who possess a blend of rigorous academic research with practical, hands-on experience in adjacent technical fields (such as hardware troubleshooting, acoustics, or commercial technical operations) are highly encouraged to apply.
Sr. Data Scientist Glint Tech Solutions LLCSr. Data ScientistReston, VAThe selected candidate will own high-impact data science projects from inception through completion, contribute technically throughout, refine product requirements with Product teams, coordinate the efforts of other data scientists, and interface with stakeholders across the organization. Our client, a federal healthcare insurance organization, has an immediate need for a Senior Data Scientist to identify and solve business problems using statistical modeling, machine learning, AI, operations research, and data mining.
Bioassay Research Scientist II GuidehouseBioassay Research Scientist IISilver Spring, MarylandDevelop, optimize, and support qualification of cell-based bioassays capable of detecting total NF-B activity and subunit-specific NF-B activity, with emphasis on c-Rel-specific bioassays for comparative analysis studies. Experience developing potency, functional, mechanism-of-action, or subunit-specific bioassays (i.e. NF-B, c-Rel, RelA, RelB, p50, p52) and analyzing inflammatory and oncology-related signaling pathways.
Senior Data Scientist/Machine Learning Engineer - TS/SCI with Poly (req-242) CATHEXISSenior Data Scientist/Machine Learning Engineer - TS/SCI with Poly (req-242)Tysons, VA$150,000–$190,000The 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.
Senior Quantitative Scientist Think Tank, Inc.Senior Quantitative ScientistSilver Spring, MDContractorUS Citizenship Required*Full time Onsite Position at the NWFSC, Seattle, WA or at one of its associated field stations in WA or OR*Travel is anticipated*Anticipated Start: 4th quarter FY 2026*Position is Subject to Contract AwardPOSITION DESCRIPTIONThe Senior Quantitative Scientist will support the Northwest Fisheries Science Center (NWFSC) Fish Ecology Division by conducting advanced quantitative analyses and developing ecological models that inform fisheries management and conservation decisions throughout the Pacific Northwest and California. Working with NOAA scientists, natural resource managers, tribal representatives, and interdisciplinary research teams, the Senior Quantitative Scientist evaluates the effects of environmental conditions, habitat characteristics, ecological interactions, and management actions on fish populations and aquatic ecosystems.
Data Scientist/Machine Learning Engineer (req-253) CATHEXISData Scientist/Machine Learning Engineer (req-253)Tysons, VA$120,000–$150,000The 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.
Senior Data Scientist (NLP and Unstructured Data Analytics) Node.DigitalSenior Data Scientist (NLP and Unstructured Data Analytics)Washington, DCRemoteIntegrate and scale natural language processing methods to parse, clean, and analyze large corpora of unstructured and semi structured text, using optical character recognition, semantic similarity algorithms, and large language models as needed. Collaborate directly with criminal investigators to determine and execute analytic strategies supporting loan fraud cases, and adhere closely to the federal rules of criminal procedure governing protected information, including Rule 6(e).