Hyperspectral Image Scientist LeidosHyperspectral Image ScientistSpringfield, VA$92,300–$166,850 / yearIf you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com . The Senior Hyperspectral Image Scientist will provide subject matter expertise in spectral data processing, algorithm development, image exploitation, and applied remote sensing science.
Imagery Scientist (SAR) LeidosImagery Scientist (SAR)Springfield, VA$116,350–$210,325 / yearIf you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com . April 29, 2026 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.
Data Scientist LeidosData ScientistSpringfield, VA$92,300–$166,850 / yearIf you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com . August 27, 2026 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.
Senior Data Scientist (Machine Learning & Geospatial Analytics) – TS/SCI Required LeidosSenior Data Scientist (Machine Learning & Geospatial Analytics) – TS/SCI RequiredWoodbridge, VA$92,300–$166,850The analyst will work closely with Intelligence Community (IC) partners, geographic names experts, and multi-INT analysts to ensure imagery-derived assessments are geospatially precise, linguistically accurate, and operationally relevant. Bachelor’s degree and 12+ years of relevant experience, or Master’s degree and 10+ years of relevant experience in Data Science, Computer Science, Analytics, or related field.
Anomalous Health Incidents Principal Scientist Applied Research Associates IncAnomalous Health Incidents Principal ScientistAlexandria, VAThe Mission Concepts and Capabilities (MCC) Division of Applied Research Associates, Inc. (ARA) is seeking to contingently hire an Anomalous Health Incidents (AHI) Principal Scientist for ARA's effort supporting the Office of the Assistant Secretary of War for Critical Technologies (OASW(CT)). COMPANY INFORMATION: Applied Research Associates, Inc. is an employee-owned international research and engineering company recognized for providing technically superior solutions to complex and challenging problems in the physical sciences.
Senior Scientist - Strategic Health Sciences TRC Companies, Inc.Senior Scientist - Strategic Health SciencesHerndon, Virginia$145,000–$165,630.40 / yearFull timeOverview: We are seeking a highly experienced Senior Scientist or Engineer – Sector/Industry Lead who is recognized within the industry as a leader in chemical management and/or product stewardship and provides strategic scientific leadership to help global organizations navigate a rapidly evolving and complex regulatory landscape. The ideal candidate is a seasoned professional with in-depth understanding of emerging and current trends, technologies, and regulations needed to develop innovative solutions and drive measurable impact across chemical product life-cycle management for private sector and government entities.
Public Health Laboratory Scientist I Fairfax CountyPublic Health Laboratory Scientist IFAIRFAX (FJ15), VACome join the Fairfax County Health Department (FCHD) Laboratory team and use your skills and abilities to “Protect, promote and improve the health and quality of life for all who live, work and play in our community”. Operates laboratory instrumentation and testing systems to generate accurate and timely results for patient specimens, quality control, and proficiency testing samples.
Health AI ML Data Scientist GuidehouseHealth AI ML Data ScientistVirginiaDevelop Generative AI (GenAI) solutions using large language models (LLMs), retrieval augmented generation (RAG), semantic search, vector databases, AI agents, and prompt engineering techniques. Collaborate with epidemiologists, researchers, engineers, program staff, and business stakeholders to identify AI use cases, prioritize opportunities, and translate business needs into production-ready AI solutions.
Health AI ML Data Scientist Guidehouse IncHealth AI ML Data ScientistTysons, VA$85,000–$141,000 / yearDevelop Generative AI (GenAI) solutions using large language models (LLMs), retrieval augmented generation (RAG), semantic search, vector databases, AI agents, and prompt engineering techniques. Collaborate with epidemiologists, researchers, engineers, program staff, and business stakeholders to identify AI use cases, prioritize opportunities, and translate business needs into production-ready AI solutions.
Medical Laboratory Scientist OR MT OR MLT at Top Health System KA Recruiting Inc.Medical Laboratory Scientist OR MT OR MLT at Top Health SystemFranklin, VAThis award winning hospital offers a full range of services including (but not limited to) heart and vascular, neurosurgery, urology, oncology, spine care and maternity services! For consideration, applicants must have an AS or BS Degree from an accredited medical technology/medical laboratory science program and must have or be eligible for MT/MLS or MLT ASCP Certification.
Medical Technologist OR Medical Laboratory Scientist OR MLT at Top Health System KA Recruiting Inc.Medical Technologist OR Medical Laboratory Scientist OR MLT at Top Health SystemSmithfield, VAThis award winning hospital offers a full range of services including (but not limited to) heart and vascular, neurosurgery, urology, oncology, spine care and maternity services! For consideration, applicants must have an AS or BS Degree from an accredited medical technology/medical laboratory science program and must have or be eligible for MT/MLS or MLT ASCP Certification.
Data Scientist (Looker/AI/BI) Northramp LLCData Scientist (Looker/AI/BI)Reston, VABuild 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). This role is part of Northramp’s integrated delivery model, where engineers and advisors work as one team to bring sound judgment, disciplined execution, and deep federal experience to high-stakes modernization programs.
Medical Laboratory Scientist II - Spec Chem General Quest Diagnostics IncMedical Laboratory Scientist II - Spec Chem GeneralChantilly, VAChemistry focused lab areas (Automated Chemistry, Immunoassay, LCMSMS, Special Chemistry, Toxicology) Medical Lab Scientist must meet one of the following: Bachelor of Science with certification as a Medical Updated JB & NS April 2026 Laboratory Scientist from the American Society of Clinical Pathologists (ASCP), or National Registry of Certified Chemists (NRCC), or the American Medical Technologists (AMT) dated after 1/1/2014, or American Association of Bioanalysts (AAB). The normal performance of duties may require lifting and carrying objects: Objects 1 to 10 pounds are lifted and carried frequently; objects 11 to 25 pounds are lifted and carried occasionally; objects 36 to 50 pounds are seldom lifted or carried and objects over 50 pounds are not to be lifted or carried without assistance.
Medical Laboratory Scientist II - Serology IFA Quest Diagnostics IncMedical Laboratory Scientist II - Serology IFAChantilly, VA$35.78–$48.06 / hourBiology focused lab areas (Donor Testing, Flow Cytometry, Hematology, IFA, Immunology, Microbiology, Molecular Genetics, Molecular Infectious Disease, Molecular Oncology, Serology, TB Blood Testing, Virology) Medical Lab Scientists must meet one of the following: Bachelor of Science with certification as a Medical Laboratory Science from the American Society of Clinical Pathologists (ASCP), or the American Medical Technologists (AMT) dated after 1/1/2014, or American Association of Bio analysts (AAB). May have courses: Bacteriology, Virology, Epidemiology, Cell/Molecular Biology, Immunology or Serology, Instrumentation, Physics (max 3 credits), Inorganic Chemistry, Medical/Pathogenic Microbiology, Mycology, Genetics, Biochemistry, Hematology, Parasitology, Micro techniques.
Scientist (R&D Toxicology) Quest Diagnostics IncScientist (R&D Toxicology)Chantilly, VA$80,000–$100,000 / yearOr a Doctoral degree (PhD) with a thesis focused on related analytical methodologies and hands-on laboratory experience (suitable for candidates seeking an industry-based post-doctoral opportunity).Hands-on operational expertise and troubleshooting experience with Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS) systems. This role heavily features high-recovery sample preparation, including solid-phase extraction (SPE) of biological matrices such as urine, oral fluid, serum, or whole blood specimens, for qualitative and quantitative analysis on LC-MS/MS platforms.
Data Scientist Avalore, LLCData ScientistArlington, VAThis person will analyze complex datasets to identify patterns and relationships, select and implement appropriate machine learning algorithms for specific problems, and develop feature engineering approaches to improve model performance. Salary at Avalore is determined by various factors, including but not limited to location, the individual's particular combinaition of education, knowledge, skills, competencies, and experience, as well as contract-specific affordability and organizational requirements.
Data Scientist/Machine Learning Engineer (req-253) CATHEXISData Scientist/Machine Learning Engineer (req-253)Tysons, VA$120,000–$150,000 / yearThe 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/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–$190,000 / yearThe 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 Scientist (Microbial Reference) - CL067 DHRMSenior Scientist (Microbial Reference) - CL067Richmond, VirginiaAs such, DCLS strictly prohibits the manufacture, distribution, dispensation, possession or use of alcohol, marijuana, or other drugs, prohibits employees from possessing or using alcohol, marijuana or any controlled substances (including, but not limited to prescription drugs) while in state owned vehicles, in the workplace or on DCLS premises, or when performing official work duties. Due to the critical nature of the work performed by the Division of Consolidated Laboratory Services (DCLS) and the requirements and responsibilities placed upon DCLS by the Drug Free Workplace Act, Federal Select Agent Program, and DHRM Policy 1.05 Alcohol and other Drugs, it is the policy of DCLS to maintain a workplace that is free from the harmful effects of alcohol or other drugs.
NewData Scientist PrInce William County GovernmentData ScientistWoodbridge, VA$83,272.80–$97,968 / yearBy submitting this application, I understand the following: 1) Only the information provided on my application is used to determine my qualifications; 2) My resume will not substitute for the education, work experience, and required fields on the Prince William County application; 3) Only responses to Supplemental Questions that can be verified in my submitted education and work experience will be credited and 4) If selected, my employment dates will be verified for the past three (3) years (if applicable), with a required reference from my current or most recent employer. In this role, you will work within the Police Department, analyzing complex datasets to derive actionable insights, developing predictive models, and collaborating with cross-functional teams to drive data-driven decision-making, ultimately making a positive and lasting impact on our county.