NewBattery Scientist I or II Ion Storage SystemsBattery Scientist I or IIBeltsville, MD$75,000–$90,000 / yearFull timeKey Responsibilities: Learn and perform research on electrochemical cells and their component materials via electrochemical experiments, mechanical characterization, materials characterization, and destructive physical analysisFabricate prototypes of ION's unique battery technology and conduct testing with a focus on scientific rigor, repeatability, and statistical analyses in an industrial settingWork with senior scientists to design, execute, and interpret results of experiments targeting understanding and improving the electrochemical performance of battery cells and componentsEffectively document and communicate experimental design, results, and uncertainties within the Cell R&D team and to partner teamsSupport the design and fabrication of custom tools and fixtures for cell assembly and testingTroubleshoot unexpected results, equipment issues, and cell failures using structured root-cause analysis, and translate findings into actionable changesStay current with the battery and solid-state literature, and bring relevant methods and findings back to the teamIdentify opportunities to improve R&D processes for better reproducibility, yield, and safetyFollow safety protocols for handling chemicals, cell components and cells, including proper storage and disposalMaintain lab cleanliness and promote environmental health and safety in the daily work environmentAt the Scientist II level, independently scope and lead experimental campaigns from design through interpretation, pursue new experimental approaches and characterization methods, and mentor junior scientists on lab methods and data practices Required Qualifications:Battery Scientist I: B.S. with 0-2 years of experience in industry, internships, or academic research; or M.S. in Chemistry, Chemical Engineering, Material Science and Engineering, or related field with laboratory-based research workBattery Scientist II: M.S. with 2-4 years of relevant industry experience; or Ph. Physical Demands and Working Conditions:Work onsite at ION's Beltsville, MD facility; this is a hands-on, collaborative role requiring regular presenceWear personal protective equipment including, but not limited to, a lab coat, gloves, safety glasses, and safety-toe shoesAbility to stand, bend, and move around equipment and lab benches for extended periods Benefits:The base salary range for this role is $75,000-$90,000 for Battery Scientist I and $90,000-$115,000 for Battery Scientist II, depending on experience and educational background.
NewTactical Scientist (Fort Belvoir, VA) CSPC SolutionsTactical Scientist (Fort Belvoir, VA)Fort Belvoir, VAThe Tactical Scientist brings elite subject-matter expertise drawn from the highest levels of special operations to bridge the gap between operational needs and technical development, guiding scientists and engineers with authority so that technology investments are driven by operational viability, lethality, and survivability rather than theoretical perfection. CSPC Solutions is seeking a Tactical Scientist to serve as an embedded operational translator supporting a federal Counter-Weapons of Mass Destruction (CWMD) research, development, test, and evaluation effort.
Data Scientist, Principal (DCO) Senior GormatData Scientist, Principal (DCO) SeniorAnnapolis Junction, MDFull timeWhat Required Skills You'll Bring:Proficient in PythonExperience with Docker and KubernetesExperience with end to end workflows and projectsThree or more years of Defensive Cyber Operations experienceThree or more years of Machine Learning techniques and statistical model evaluationWhat Desired Skills You'll Bring:Demonstrated expertise with R or Python and SQL to manipulate data and draw insights from large and small data setsExposure to AWS (Amazon Web Services), Cisco CCNA, STIGs IAVA, Big Data Platform (BDP)Strong background and skills in Linux Ubuntu CentOS RHEL, Windows, and virtual environmentsA problem solver who can get in, be given a project, and use engineering skills to determine a solutionJupyter Notebooks, Network Analysis ToolsQualificationsDegree from an accredited college or university in System Engineering or related discipline and one of the following:10 or more years of experience with a Master's degree12 or more years of experience with a Bachelor's degree16 or more years of experience with an Associate's Degree or High School DiplomaTS/SCI with polygraph is required. Evaluate statistical models to determine the validity of analyses, implement evaluated models into production by collaborating with software developers, and periodically re-evaluate and refine machine learning models being used in production.
Data Intelligence - Data Scientist Ld Ampcus IncorporatedData Intelligence - Data Scientist LdColumbia, MD$70–$80.98 / hourIdentifies and solves business problems by using various numerical techniques, algorithms, and models in statistical modeling, machine learning, operations research, and data mining. Must have previous Provider data experience working with leadership on provider data issues, accuracy, and provider data interactions with claims and claims platforms.
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).
Data Scientist Role OpenDataJobsData Scientist RoleWashington, DCAn opening may emphasize statistical inference, experimental design, forecasting, natural language processing, computer vision, econometrics, operations research, causal analysis, geospatial analysis, model risk, program evaluation, or applied AI. You work with subject-matter experts, analysts, engineers, and decision-makers to frame the right question, challenge assumptions, and turn technical results into conclusions people can use responsibly.
Environmental Scientist Environmental Research GroupEnvironmental ScientistBaltimore, MD$80,000–$90,000 / yearFull timeKnowledge and Experience The position requires experience with multiple federal and state environmental regulatory areas, with a focus in one or more programs including but not limited to environmental compliance auditing and inspections; Environmental Management System; solid waste, toxic substances, spill response, stormwater, wastewater, hazardous materials, hazardous waste, storage tanks, air quality, and/or resilience. You will plan and execute technical projects, conduct regulatory research, write reports, support permitting process, conduct site visits and surveys, and collaborate with a team, while remaining flexible to prioritize clients' needs and deadlines.
Senior Data Scientist UnissantSenior Data ScientistWashington, DCFull timeWe are seeking a Senior Data Scientist to join our team in Washington, DC, in support of the Department of Homeland Security (DHS), Immigration and Customs Enforcement (ICE), Law Enforcement Systems and Analysis (LESA) program within the Statistical Tracking Unit (STU).The STU is the official statistical reporting unit for ICE, responsible for ensuring accountability, consistency, and efficiency in the statistical reporting of ICE operations. Proficiency with data visualization tools: Python (matplotlib, seaborn, Plotly), Tableau, Qlik, Power BI, GIS/ArcGIS.Demonstrated, hands-on experience in operations research: building and evaluating optimization models, simulation models, or decision-support tools, preferably applied to federal, law enforcement, immigration, or other large-scale operational contexts.
Data Scientist (Senior) ML/Russian - TS/SCI WiserData Scientist (Senior) ML/Russian - TS/SCISpringfield, VAFull timeExperience processing unstructured data and documents (e.g., text, reports, open-source content).Experience developing or supporting NLP capabilities, including querying across aggregated data sources. Wiser Imagery Services employs personnel within the states of Alabama, Florida, Georgia, Illinois, Indiana, Maryland, Missouri, North Carolina, North Dakota, Ohio, Pennsylvania, Tennessee, Texas, Virginia, and West Virginia.
Data Scientist LinTech GlobalData ScientistArlington, VAFull timePosition Requirements: • Proficiency in common data science tools and programming and scripting languages such as SQL, Python, R, and JavaScript with a proven ability to create solutions in complex environments, including the use of programming languages to create datasets, visualizations, and interactive reports in various business intelligence applications. • Expert proficiency in common data science tools, including scripted languages (such as Python, R, and JavaScript), Integrated Development Environment and analytics platforms, open-source solutions, commercial off-the- shelf tools and hardware-based capabilities to support the data analytic development process and creating models, dashboards, and reports.
Data Scientist Expert In Recruitment SolutionsData ScientistSpringfield, VAThis role supports defense, intelligence, and federal clients by building machine learning models, data pipelines, and APIs to determine information values, trends, patterns, and relationships—particularly in signal, image, and geospatial domains—and working with structured and unstructured data to generate insights for operations or strategic decision-making. We are seeking a Data Scientist to join a multidisciplinary team developing analytic capabilities, capturing workflows, designing predictive models and developing business processes for real-world mission challenges.
Data Scientist UnissantData ScientistWashington, DCFull timeWe are seeking a Data Scientist to join our team in Washington, DC, in support of the Department of Homeland Security (DHS), Immigration and Customs Enforcement (ICE), Law Enforcement Systems and Analysis (LESA) program within the Statistical Tracking Unit (STU).The STU is the official statistical reporting unit for ICE, responsible for ensuring accountability, consistency, and efficiency in the statistical reporting of ICE operations. Gather business requirements and draft reporting methodologies; participate in the testing and validation of business rule implementations; provide final training documentation as directed by the STU Unit Chief.• Identify data resources, research historical data, integrate structured and unstructured data from disparate sources, and incorporate new data from systems as required.•
Data Scientist :: Washington, DC (REMOTE) ARK Solutions, Inc.Data Scientist :: Washington, DC (REMOTE)Washington, DCRemoteThe ideal candidate will have experience working with large and complex datasets to identify trends and generate insights for data-driven decision-making. Seeking for a Data Scientist with expertise in Python, SQL, and Databricks to support data analysis and research initiatives.
Scientist Integrated Resources, IncScientistBaltimore, MarylandContractorIn addition to responsibilities related to product development, the Scientist will also assist in troubleshooting and optimizing existing products and work with internal and external customers to implement solutions for product technical support needs. • This position supports a cross-functional team working toward the design and commercialization of new cell culture media and media supplement products.
Senior Data Scientist Compu-Vision Consulting Inc.Senior Data ScientistWashington, DCIntegrate and scale natural language processing methods to parse, clean, and analyze large corpora of unstructured or semi-structured text data, utilizing OCR, semantic similarity algorithms, and large language models as needed. Design, develop, test, calibrate, and implement advanced statistical and machine learning models targeted at identifying financial fraud, improper payments, or noncompliance within SBA programs.
Associate Scientist Integrated Resources, IncAssociate ScientistRockville, MarylandFull timeSet up for sample collection, necropsy, and histology tissue sample collection Set up study folders/books for necropsies, histology sample collection and processing Understand and be proficient in the use of different Computer programs (Word, Excel, Provantis) Process samples, inventory, ship and archive samples as needed. Communicate with both Supervisor and Study Director Conduct pre-designed scientific studies using laboratory equipment and calculations to include such tasks as: Randomization, allocation and collection of data using a data capture system.
NewData Scientist - TS/SCI with Poly Macpower Digital Assets Edge Private LimitedData Scientist - TS/SCI with PolyFort Meade, MD$160,000–$185,000 / yearPosition Responsibilities: A data scientist will develop machine learning, data mining, statistical and graph-based algorithms to analyze and make sense of datasets; prototype or consider several algorithms and decide upon final model based on suitable performance metrics; build models or develop experiments to generate data when training or example datasets are unavailable; generate reports and visualizations that summarize datasets and provide data-driven insights to customers; partner with subject matter experts to translate manual data analysis into automated analytics; implement prototype algorithms within production frameworks for integration into analyst workflows. Required Degree and Experience: Bachelor's degree in a quantitative discipline (e.g., statistics, mathematics, operations research, engineering or computer science) + 7 years of experience, Master's Degree + 5 years of experience, or PhD + 2 years of experience.