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.
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 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 (Looker / AI / BI) Northramp LLCData Scientist (Looker / AI / BI)Washington, DCBuild and deploy machine learning models for classification, prediction, anomaly detection, and natural language processing use cases using Python (scikit-learn, TensorFlow, or PyTorch) and cloud AI/ML services (Vertex AI, SageMaker, or Azure ML). Northramp is seeking a Data Scientist to join the team supporting client's Cloud program — a mission-critical effort to consolidate, modernize, and operate client's enterprise cloud services across IaaS, PaaS, and SaaS environments under FedRAMP High authorization.
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).
Materials Scientist I Ion Storage SystemsMaterials Scientist IBeltsville, MDFull timeDocument and communicate experimental methods, results, and uncertainties Look for opportunities to improve and innovate the product or processes and propose ideas to the team Maintain lab cleanliness and promote environmental health and safety in the daily work environmentBe a passionate and agile member of the R&D team with a desire to work in fast-paced environment Required Qualifications: B.S. or M.S. in Materials Science & Engineering, Chemical Engineering, Ceramic Engineering, Mechanical Engineering, Chemistry, or related field1+ years of experience conducting research in a laboratory setting, preferably in ceramics, chemical, or polymer researchExperience with analytical techniques such as SEM, XRD, particle size analysis, FTIR, etc. Desired Qualifications/Skills: 1-3 years of hands-on experience with ceramic processing and sinteringProduct research or development focused experienceProficiency designing experiments and analyzing dataFamiliarity with ion conductors and fuel cell or battery electrochemistry Benefits: The base salary range for this role is $77,000, depending on experience.
Data Scientist (FORECASTED) Columbia Technology PartnersData Scientist (FORECASTED)Annapolis Junction, MD$7,000–$20,000 / yearFull timeLevel 1: Four (4) years of experience analyzing datasets and developing analytics, plus two (2) years of experience programming with data analysis tools such as Python, R, SAS, or MATLAB.Level 2: Eight (8) years of experience analyzing datasets and developing analytics, plus five (5) years of experience programming with data analysis tools such as Python, R, SAS, or MATLAB.Preferred With a proven track record in information security, project management, systems/network engineering, security risk management, vulnerability assessments, and mobile security implementation; our employees have the experience, expertise, and innovative thinking our customers need for results that exceed expectations.
NewResearch Scientist - Aging and Disability Public Health Surveillance - Washington, DC NORCResearch Scientist - Aging and Disability Public Health Surveillance - Washington, DCWashington, DCPosition Location Closes Research Scientist - Aging and Disability Public Health Surveillance - Washington, DC Washington, DC Open until filled NORC at the University of Chicago is seeking a Research Scientist to join the Public Health Research Department in our Washington, DC Office. Position Location Closes Research Scientist - Aging and Disability Public Health Surveillance - Washington, DC Washington, DC NORC at the University of Chicago is seeking a Research Scientist to join the Public Health Research Department in our Washington, DC Office.
Data Scientist PeopleNTech LLCData ScientistAlexandria, VAAdhere to employment contract terms, company policies, procedures, and directives, including potential transfers, role or shift changes, flexible work policies, alternative arrangements, and other business-driven decisions. Job Description: Design and implement AI/ML models focusing on GenAI, LLMs, ML models, and RAG architectures.
Senior Data Scientist SGA Inc.Senior Data ScientistRockville, MD$75–$77 / hourThis role requires a blend of technical expertise, analytical rigor, and excellent communication skills to collaborate effectively across technical and non-technical stakeholders. Education: Bachelor's degree in Data Science, Statistics, Computer Science, Mathematics, Engineering, or related quantitative field; advanced degree (Master's or PhD) preferred.
Data Scientist with active TS/SCI with FSP Red Rock Government ServicesData Scientist with active TS/SCI with FSPMcLean, VAFull timeWith a proven track record of delivering innovative and mission-critical solutions, Red Rock specializes in developing secure, scalable, and cutting-edge technologies tailored to meet the complex needs of intelligence operations. This role involves processing and modeling complex technical data, building custom tools, and developing data pipelines across diverse environments to meet fast-paced targeting and analytics requirements.
Cryptologic Computer Scientist 2 Weeghman & Briggs LLCCryptologic Computer Scientist 2Jessup, MD$119,000–$132,200 / yearFull timeCryptologic Computer Scientist 2Location: Annapolis Junction, MD | Onsite Clearance Required: TS/SCI with Polygraph Employment Type: Full-Time Salary Range: $119,000-$132,200Join a Growing Team at Weeghman & BriggsWeeghman & Briggs is seeking a motivated and mission-driven Cryptologic Computer Scientist 2 to support critical government initiatives in Annapolis Junction, MD.Founded in 2016 by Anthony Jordan, Weeghman & Briggs specializes in delivering high-impact analytical services to Government Agencies and private organizations. Preferred QualificationsAgile, cloud, or modernization experienceBackground in process improvement or analytical servicesThe right candidate will apply requisite computer science skills (operating systems, compiler theory, databased theory, algorithm analysis, computer architecture, discrete math, programming language theory, and data structure) to each problem to provide state-of -the-art techniques, tools, and approachesCandidates with customer experience, TechSIGINT, or previous skills as a TDNA, DNEA, or TAR is a plus.
Data Scientist Pyramid Consulting, IncData ScientistMcLean, VA$60–$65 / hourExperience testing model-output pipelines, identifying defects, analyzing root causes, documenting issues, and supporting retesting after remediation. The role is expected to balance Python development, testing, analytical troubleshooting, and delivery execution to help users review, validate, and act on computer vision outputs.
Lead Data Scientist Fusion TechnologyLead Data ScientistCamp Springs, MDFull timeWhat you'll do:The Data Scientist Lead provides technical leadership for enterprise data analytics solutions under this task order, designing and modeling analytical architectures and implementing systems and databases that support end‑user analytics. Fusion Technology is a performance-driven HUBZone Small Business concern residing in the heart of the beautiful mountainsides of West Virginia, steps away from the Federal Bureau of Investigation's Criminal Justice Information Services Division's Headquarters.
Lead Data Scientist Gritter FranconaLead Data ScientistWashington, DCRemoteOHI is further responsible for ensuring the success of the modernized VA EHR, Oracle Health Millennium/Cerner through continuous exploration, integration, deployment and release on demand of Integrated Health Technology (IHT) solutions. Serves as the technical lead for advanced analytics, predictive modeling, and machine learning initiatives supporting clinical decision-making and operational optimization.
Senior Imagery Scientist (SAR) Leidos Holdings IncSenior Imagery Scientist (SAR)Springfield, VA$92,300–$166,850 / yearAdditional 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. For 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.
Research Scientist III- Data Analyst - Fire Safety Research Institute UL Research InstitutesResearch Scientist III- Data Analyst - Fire Safety Research InstituteColumbia, MarylandThrough advanced fire science, rigorous research, extensive outreach, and education in collaboration with our international network of partners, we share with stakeholders the information, tools, and resources that enable them to make better, more fire-safe decisions that ultimately save lives and property. The Research Scientist III works closely with other FSRI leaders and researchers to analyze data, and develop models associated with fire safety science to ensure all processes are accurate and technically sound.
NewSenior Applied Research Scientist Geico InsuranceSenior Applied Research ScientistBethesda, MD$115,000–$230,000 / yearTechnical Roadmapping & Partnership: Partner with product, engineering, and domain experts to translate business needs into feasible technical roadmaps, de-risking assumptions and aligning milestones to outcomes. Communication & Stakeholder Management: Communicate approach, trade-offs, and results to technical and non-technical audiences; provide realistic estimates and influence decision-making across the organization.
Research Scientist George Mason UniversityResearch ScientistFairfax, VirginiaApplies 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.
Data Scientist - National Capital Region (NCR); Must have an active TS/SCI Clearance with Polygraph Synertex LLCData Scientist - National Capital Region (NCR); Must have an active TS/SCI Clearance with PolygraphBethesda, MDFull timeREQUIREMENTS:TS/SCI clearance with polygraph required, including additional security screeningsEducation and Experience RequirementsCandidates must meet the following minimum education and relevant experience combinations by level:Entry Level:HS/GED + 6 years experienceAssociate's + 4 years experienceBachelor's + 2 years experienceMaster's degree (experience may be substituted as appropriate)Journeyman Level:HS/GED + 8 years experienceAssociate's + 6 years experienceBachelor's + 4 years experienceMaster's + 2 years experienceSenior Level:HS/GED + 10 years experienceAssociate's + 8 years experienceBachelor's + 6 years experienceMaster's + 4 years experiencePhD + 2 years experienceExpert / Master Level:HS/GED + 12 years experienceAssociate's + 10 years experienceBachelor's + 8 years experienceMaster's + 6 years experiencePhD + 4 years experience Join a mission-driven team advancing government communication capabilities and operational readiness. We're seeking a skilled Data Scientist to support critical government and intelligence initiatives by providing deep expertise in data science toolkits, analytics, statistical analysis, and multi cloud data discovery and exploitation.