NewSr. Computer & Information Research Scientist Markon SolutionsSr. Computer & Information Research ScientistColumbia, MDContributing to-and potentially leading-small engineering teams in planning, designing, and implementing large‑scale technical programs while interfacing with senior management and technical leadership. In this role, you will support the design, development, integration, operation, and maintenance of complex technology systems while applying advanced expertise to solve unusually challenging technical problems.
Structural Biology Research Scientist GuidehouseStructural Biology Research ScientistBethesda, MD$85,000–$141,000 / yearWhat You Will Do: We are seeking a Structural Biology Research Scientist to support the National Institute of Allergy and Infectious Diseases (NIAID) through viral protein construct design, expression optimization, protein purification, and cryo-electron microscopy studies that advance vaccine development. Compensation decisions depend on a wide range of factors, including but not limited to skill sets, experience and training, security clearances, licensure and certifications, and other business and organizational needs.
Research Scientist ManTechResearch ScientistCatonsville, MDThe Research Scientist will support advanced research initiatives focused on high-performance computing and machine learning benchmarks. + Constantly operate a computer and other office productivity machinery, such as a calculator, copy machine, and computer printer.
Principal Operations Research Scientist - 90028548 - Washington (Washington, DC, US, 20001) AmtrakPrincipal Operations Research Scientist - 90028548 - Washington (Washington, DC, US, 20001)Washington, DC$124,600–$161,352 / hourOur values of ‘Do the Right Thing, Excel Together and Put Customers First’ are at the heart of what matters most to us, and our Core Capabilities, ‘Building Trust, Accountability, Effective Communication, Customer Focus, and Proactive Safety & Security’ are what every employee needs to know and do to be most impactful at Amtrak. The Principal Operations Research Scientist – Revenue Management Systems (RMS) is a senior individual contributor role reporting to the Director, Revenue Products and Business Planning within the Pricing, Revenue Management, Sales and Distribution (PRMSD) organization at Amtrak.
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.
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.
Research Scientist Metron, Inc.Research ScientistReston, VAOur Reston office is seeking talented candidates to develop mathematical models and algorithms, develop and demonstrate prototype software, and participate in operational analysis related to their technical work. Areas of focus span a broad spectrum from data analysis and fusion, artificial intelligence and machine learning, signal processing, multi-variable optimization, mission planning and tactical decision aids.
Research Scientist III (Infectious Disease Epidemiology and Health Services Research) MAPMG CareersResearch Scientist III (Infectious Disease Epidemiology and Health Services Research)Washington, District of Columbia$190,000–$210,000 / yearMid-Atlantic Permanente Medical Group (MAPMG) invites applications for the position of Research Scientist III (Infectious Disease Epidemiology/Health Services Research) , which is a senior position equivalent to an academic full professor, to join the Mid-Atlantic Permanente Research Institute (MAPRI). The starting annual salary for this position ranges from $190,000 to $210,000 depending on circumstances including an applicant’s skills and qualifications, certain degrees and certifications, prior job experience, training, market data, and other relevant factors.
Research Scientist II (Infectious Disease Epidemiology Health Services Research) MAPMG CareersResearch Scientist II (Infectious Disease Epidemiology Health Services Research)Washington, District of Columbia$152,776.24–$190,970.12 / yearMid-Atlantic Permanente Medical Group (MAPMG) invites applications for the position of Research Scientist II (Infectious Disease Epidemiology/Health Services Research) , which is a mid-career position equivalent to an academic associate professor, to join the Mid-Atlantic Permanente Research Institute (MAPRI). The starting annual salary for this position ranges from $152,776.24 to $190,970.12 depending on circumstances including an applicant’s skills and qualifications, certain degrees and certifications, prior job experience, training, market data, and other relevant factors.
NewBiotechnology Research Scientist SURVICE Engineering CompanyBiotechnology Research ScientistAdelphi, MD$110,000–$130,000 / yearUse techniques for the quantification, synthesis, purification, and assembly of DNA such as PCR (including Quantitative polymerase chain reaction (QPCR), Reverse Transcription (RT)-PCR), enzymatic kits for DNA manipulation, and gel electrophoresis. They have also contributed their expertise to other vital national defense programs and technologies that involve survivability, cybersecurity, information technology/management, software engineering, unmanned aerial systems (UASs), and metrology/reverse engineering.
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.
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 (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.
Research Scientist & Clinical Psychologist Maryland Treatment Centers, Inc.Research Scientist & Clinical PsychologistRockville, MDMaryland 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.
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.
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.