Database Engineer (TS/SCI) VantorDatabase Engineer (TS/SCI)Herndon, VirginiaWorking closely with ontology engineers, software developers, data architects, and Government stakeholders, the Database Engineer enables efficient storage, retrieval, and management of structured and unstructured data supporting mission operations. This position develops scalable data architectures that support Semantic Web technologies, knowledge graphs, and AI/ML-enabled analytics while ensuring high availability, security, performance, and data integrity across enterprise object-management systems.
IoT Engineer System OneIoT EngineerMerrifield, VARemote$80 / hourPartner with sensor specialists to manage new sensor data streaming to the IoT platform, and with data scientists and machine learning engineers to take on analytic results and develop it to an application with a user interface, integrate with any pre-existing systems, demonstrate successful use cases and wins, etc. Work with Industry solution providers, equipment manufacturers, and the Enterprise Resource Planning vendor to design and implement the required system integration points and data flow to achieve best-in-class lights-out operations.
Senior Data Scientist SeekrSenior Data ScientistReston, VirginiaAvailable across cloud, on-premises, and edge environments, SeekrFlow reduces bias, strengthens data integrity, and simplifies model oversight so organizations can rely on trusted AI decisions in high-stakes settings that impact society’s most sensitive and vital systems. The right candidate will work on the design, development, and deployment of AI/ML capabilities for various applications implementing generative AI and integrations with predictive capabilities (agentic workflows, LLM fine-tuning).
Staff Scientist - Engineering Washington University in St LouisStaff Scientist - EngineeringWashingtonThe screenings will include criminal background check and, as applicable for the position, other background checks, drug screen, an employment and education or licensure/certification verification, physical examination, certain vaccinations and/or governmental registry checks. Documents research topics and prepares and submits papers based on research work to publications and committees for publication or presentation to peers.
NewData Scientist - TS/SCI with Poly Macpower Digital Assets Edge Private LimitedData Scientist - TS/SCI with PolyMcLean, VA$160,000–$185,000 / yearDevelop code to perform complex modeling to detect and characterize objects (using Python, TensorFlow, Pytorch, and related software packages) and enhance evolving analytic tradecraft. Strong interpersonal and teamwork skills to work with individuals and organizations, including varying levels and types (government, industry, and academia).
NewData Scientist - Machine Learning - 10% 401k - FS Poly stanleyreidData Scientist - Machine Learning - 10% 401k - FS PolyReston, VirginiaFounded in 2010 by a technical leader, our client fosters a unique blend of collaborative spirit and professional excellence in IT consulting. With a portfolio of over 30 contracts across Maryland and Virginia, they offer the stability of large firms while retaining a close-knit, small-company feel.
Principal Applied Scientist - TS/SCI VantorPrincipal Applied Scientist - TS/SCIHerndon, VirginiaWorking closely with data scientists, machine learning engineers, software developers, and operational subject matter experts, the Principal Applied Scientist is responsible for developing high-fidelity models, validating scientific assumptions, assessing uncertainty, and ensuring that analytical outputs accurately characterize UTS risks and mitigation strategies. This individual combines expertise in computational modeling, applied mathematics, physics, and data science to ensure that machine learning models, agent-based simulations, and analytical frameworks accurately represent real-world phenomena and produce scientifically defensible, operationally relevant results.
Software Engineer II - Developer Experience Booking.comSoftware Engineer II - Developer ExperienceWashington D.C., District of Columbia$191,600–$212,900 / yearFull timeThis role sits at the intersection of backend engineering, data platforms, and developer advocacy, requiring you to navigate complex architectures while keeping friction low for the users of our internal Python SDKs, workflow frameworks, and dbt . We build and maintain the tooling, platform integrations, and paved paths that help internal customers (Data Scientists, ML and Data Engineers, and Analyst community) develop, test, publish, and operate data workflows with confidence.
Scrm Analyst - Healthcare Supply Chain Risk EXIGERScrm Analyst - Healthcare Supply Chain RiskMclean, VAExiger is named a Leader in the Gartner Magic Quadrant for Supplier Risk Management, twice selected as one of Fast Company's 'Brands That Matter,' and recipient of the Third Party Risk Association's Innovator Award, Exiger's technology has been recognized by leading analyst evaluations and 50+ awards. Trusted by 550+ global customers, including Fortune 500 companies and U.S. government agencies, Exiger is a recognized, award-winning leader in supply chain AI and a FedRAMP authorized provider to the federal government.
Lead Data Scientist Bart & AssociatesLead Data ScientistSuitland, MDThis role provides technical and management leadership on major advanced data science assignments, developing advanced algorithms, models, and frameworks using machine learning, deep learning, natural language processing, and generative AI / large language models. We are seeking a Subject Matter Expert (SME)-level Lead Data Scientist to leverage cutting-edge techniques to extract insights and patterns from large and complex datasets for the U.S. Census Bureau's Decennial Transformation and Application Modernization (DTAM) effort.
NewAll-Source Analyst / Technical Targeter Rapid Cycle SolutionsAll-Source Analyst / Technical TargeterMcLean, Virginia6+ years of experience across technical competencies, such as: analysis, network engineering, network security, vulnerability assessment, technical collection, penetration testing, red teaming, hardware engineering, software reverse engineering, cyber operations, and/or computer exploitation. RCS is seeking an All-Source Analyst / Technical Targeter to provide mission critical support to the Intelligence Community (IC) by reviewing, analyzing, and responding to requests for a variety of analytic products covering a wide spectrum of topics relevant at the national and global level.
Structural Biology Research Scientist GuidehouseStructural Biology Research ScientistBethesda, MarylandWe 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.
Associate Scientist GuidehouseAssociate ScientistGaithersburg, Maryland$65,000–$108,000 / yearHands-on experience with one or more analytical techniques, including ultraviolet-visible, fluorescence, circular dichroism, or infrared spectroscopy; differential scanning calorimetry; and particle characterization methods such as light scattering, high accuracy liquid particle counting, or micro-flow imaging. 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.
Test Engineer / Scientist CACITest Engineer / ScientistFort Belvoir, VirginiaJoin our team supporting the Electro-Optical Components (EOC) Division for the Department of Army C5ISR Center, uncooled Focal Plane Array (FPA) industry-leading next generation imaging sensors for advanced EO/IR Systems to deliver state of the art capabilities. Pay Range : There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications.
Imagery Scientist (Opir) Leidos Holdings Inc.Imagery Scientist (Opir)Springfield, VA$116,350–$210,325 / yearThis exciting opportunity will have you servings as a customer-facing technical authority, delivering deep physics- and math-driven analysis across optics, thermal radiation, and signal processing, while leveraging advanced geospatial data management (ArcGIS, SDE, SQL/Oracle), scripting and analytics tools (Python/R, Tableau), and a forward-leaning understanding of AI integration in intelligence workflows, with the communication skills and professional presence required to represent Leidos and provide informal technical leadership. Serve as a customer-facing technical lead, requiring strong written and verbal communication skills, the ability to represent Leidos professionally with government stakeholders, and the capability to provide informal team leadership and mentorship as mission needs dictate.
GNSS Scientist Computational Physics, Inc.GNSS ScientistWashington, DCFull timeComputational Physics, Inc. (CPI) is looking for a GNSS Analyst or Mathematician to support our customers at the U.S. Naval Observatory, Washington DC.BackgroundThe U.S. Naval Observatory (USNO) provides precise time, Earth orientation and astronomical data to the U.S. Department of Defense, the Global Positioning System (GPS), various U.S. Federal agencies, and other users world-wide. The successful candidate will develop tools and algorithms for monitoring the validity and accuracy of GNSS data products produced by the International GNSS Service (IGS).Most work for this position will be completed on-site at USNO in Washington, D.C. The candidate must be able to obtain and maintain a SECRET clearance upon hiring.
NewPatent Prosecution Attorney JobotPatent Prosecution AttorneyWashington, DC$225,000–$285,000 / yearInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. Join a premier IP practice where you'll work on cutting-edge biotechnology and chemical innovations, enjoy hybrid flexibility, earn top-tier compensation up to $285K, and accelerate your career through sophisticated patent work and exceptional mentorship!
Clinical Scientist, Ophthalmology SanofiClinical Scientist, OphthalmologyWashington, DC$148,500–$214,500 / yearThe primary purpose of the Clinical Scientist's position is to assist/support the Clinical Research Director in the medical/scientific contribution for ophthalmology clinical studies, including: supporting operational activities pertaining to protocol development (such as Informed Consent and committee charters), validation and clinical case review of study data, review of study plans and draft study reports/publications for accuracy, literature review and analysis, and preparation of responses for investigators, study teams, ethics committees, or regulatory authorities. Contribute to preparation and/or review of documents related to studies requiring scientific background (submission portfolio, abbreviated protocol/protocol/amended protocol, patient written information, presentations/communications to internal or external partners, study plans, study reports, trial disclosure form).
Senior Scientist, Antibody Engineering Gables Search GroupSenior Scientist, Antibody EngineeringRockville, MDDevelop and advance next-generation phage display methodologies — including guided selection strategies, structure-informed panning, and epitope-directed approaches — expanding platform capabilities well beyond conventional campaign execution. Integrate AI/ML and computational tools into phage display workflows , leveraging generative protein design, protein language models, and in silico affinity prediction to accelerate lead identification and optimization.
Managed Services Revenue Cycle Technology Manager Huron Consulting GroupManaged Services Revenue Cycle Technology ManagerDistrict Of Columbia, DC$115,000–$151,000 / yearThis role partners closely with Continuous Improvement leaders, operational stakeholders, and technical teams to ensure technology capabilities-such as reporting, analytics, AI, automation, and platforms-are effectively designed, deployed, and leveraged to drive measurable operational and financial outcomes. Impactful and professional written and verbal communication to set clear direction, develop key deliverables, escalate risks, and influence key stakeholders inclusive of a variety of leaders and roles within HMS, product teams and internal senior leadership.