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).
NewQuantum Researcher Scientist Pivot Path SolutionsQuantum Researcher ScientistGaithersburg, MDThe successful candidate will bring demonstrated expertise in one or more areas, including quantum computing, quantum sensing and metrology, quantum communications and networking, quantum optics, superconducting or atomic quantum systems, quantum algorithms, or quantum error correction. Experience with superconducting circuits or qubits, trapped ions, neutral atoms, quantum photonics, single-photon systems, quantum sensors, or comparable quantum platforms.
Senior Scientist Bioscience GTTSenior Scientist BioscienceGaithersburg, MDThis 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.
Enterprise - Research Scientist - SDR Erias VenturesEnterprise - Research Scientist - SDRAnnapolis Junction, MarylandWe are seeking a Software Defined Radios Research Scientist to join the research and engineering team who will design, develop, prototype, and test Software Defined Radio (SDR) capabilities for wireless communications and networking systems. The development team will provide application development and support to core initiatives, leveraging a strong understanding of digital signal processing, wireless protocol analysis, and hands-on experimentation with commercial and open-source SDR platforms.
NewMultimedia Research Scientist and Analyst Booz Allen HamiltonMultimedia Research Scientist and AnalystSpringfield, Virginia$128,700–$292,000 / yearOnsite : If this position is listed as onsite, work will primarily be performed at a Booz Allen office or customer facility, where employees will collaborate directly with colleagues and customers as required by the role. Experience with imagery and media analysis from a forensic perspective, including analysis of a variety of multimedia data sources, images, videos, and signal processing.
Enterprise - Research Scientist - RF, ML Erias VenturesEnterprise - Research Scientist - RF, MLAnnapolis Junction, MarylandWe are seeking a Research Scientist to join the research and development team who will design, develop, prototype, and evaluate Radio Frequency Machine Learning (RFML) algorithms that promote the modernization of advanced signal processing capabilities. We are seeking engineers who wish to grow their careers and want to become part of a technically strong and growth-oriented company focused on bringing innovative solutions to the difficult mission problems facing our customers.
Multimedia Research Scientist And Analyst Booz Allen Hamilton Inc.Multimedia Research Scientist And AnalystSpringfield, VA$128,700–$292,000 / yearOnsite: If this position is listed as onsite, work will primarily be performed at a Booz Allen office or customer facility, where employees will collaborate directly with colleagues and customers as required by the role. Experience with imagery and media analysis from a forensic perspective, including analysis of a variety of multimedia data sources, images, videos, and signal processing.
Research Scientist ATR, LLCResearch ScientistArlington, VirginiaFull timeExpert knowledge and experience in one or more of the following areas are desired: photonic and organic nonlinear materials and devices, coupled oscillatory states, quantum-inspired devices, synthetic biology, as well as suitable interfaces between such technologies and conventional electronic transport methods. Knowledge and experience in one or more of the following areas: photonic and organic nonlinear materials and devices, coupled oscillatory states, quantum-inspired devices, synthetic biology, as well as suitable interfaces between such technologies and conventional electronic transport methods.
Senior Data Scientist - Simulation / Optimization AirSenior Data Scientist - Simulation / OptimizationArlington, VirginiaRemoteStay current with the rapidly evolving fields of Artificial Intelligence, including advanced methods in simulation and optimization, Large Language Models (LLMs), and agentic systems, and actively transfer this knowledge and best practices for implementation across the team. You'll apply your deep knowledge in advanced simulation and optimization techniques, including Discrete Event Simulation, Monte Carlo methods, and stochastic optimization, to enhance our platforms to handle complex capability simulation and optimization techniques for critical defense use cases.
Polymer R&D Engineer/Scientist Precise SystemsPolymer R&D Engineer/ScientistWashington, DCFull timeAbility to communicate and interface with cross-functional groups, research leads, program management, technical engineering and key stakeholders with intent to successfully progress research through product delivery phase, which may include practical fleet applications and solutions. The team includes personnel at NRL’s headquarters in Washington, DC (NRLDC), at NRL’s blue-water test facility in Key West, FL (NRLKW), as well as offsite personnel from other Navy facilities and collaborating companies in private industry.
Data Scientist, Level 2 Independent SoftwareData Scientist, Level 2Annapolis Junction, MDRelevant experience may include machine learning, data science, advanced analytics, statistical analysis, programming, data management, data mining, data modeling, artificial intelligence, or software engineering. Degree should be in Mathematics, Applied Mathematics, Statistics, Applied Statistics, Machine Learning, Data Science, Operations Research, Computer Science, or a related technical discipline.
Cryptologic Computer Scientist, Level 3 Independent SoftwareCryptologic Computer Scientist, Level 3Fort Meade, MDWhat You Will Do: As a Cryptologic Computer Scientist, Level 3 at Independent Software, you will apply advanced computer science and software engineering expertise to complex mission challenges. Additional requirements: Degree in Computer Science, Computer Engineering, Electrical Engineering, Mathematics, or a closely related field.
NewStaff Principal Scientist/Senior Economic Security Analyst AMERICAN SYSTEMSStaff Principal Scientist/Senior Economic Security AnalystAlexandria, VirginiaFull timeAs a Senior Economic Security Analyst, you will: Join a collaborative team of 8 multi-disciplinary science & technology, legal, and security professionals who are on a mission to advance the economic security priorities of OUSW(R&E) and the United States. Overview: AMERICAN SYSTEMS is an employee-owned federal government contractor supporting national priority programs through our strategic solutions in the areas of Information Technology, Engineering & Analysis, Test & Evaluation, and Training.
Senior Scientist - Bursky Public Health Washington University in St LouisSenior Scientist - Bursky Public HealthWashingtonAnalytical Thinking, Communication, Data Management, Deadline Management, Ethical Practices, Independent Research, Interdisciplinary Research, Manuscript Development, Multitasking, Oral Communications, Project Management, Reproducible Research, Scientific Writing, Statistical Software, Teamwork, Work Collaboratively, Written Communication Grade . Leads delivery of a designated funded initiative, including coordination of an external advisor network and city and partner stakeholders, management of funder milestones and deliverables across a multi-year award, and primary day-to-day responsibility for the project’s scope and timeline.
Data Scientist, Level 4 Independent SoftwareData Scientist, Level 4Annapolis Junction, MDIn 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.
Principal Marketing Scientist Geico InsurancePrincipal Marketing ScientistBethesda, MD$80,000–$230,000 / year4+ years of demonstrated experience in Marketing Science related solutions including, but not limited to: MMM, MTA, A/B Testing, Design of Experiments, Statistical Hypothesis Testing, Attribution, Response Modeling, Uplift Modeling, Audience List Creation and Deployment, Identity Resolution, Econometric Modeling, or other applied marketing science solutions. Geico is looking to hire a Principal Marketing Scientist to join the Marketing team in leading complex data analysis of large datasets and development of statistical marketing measurement methodologies to drive business decisions, identify actionable insights, and create specific business value through deployed solutions.
Data Scientist 3 GrvtyData Scientist 3Annapolis Junction, Maryland$155,000–$185,000 / yearphysics, 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.