UNKNOWN

FEED

Personally design and execute laboratory experiments , including hands-on bench work, data analysis, documentation, and interpretation involving organic, inorganic and aluminum-based chemistries, with emphasis on water treatment performance, stability, and manufacturability. Our Research & Development organization is based at Usalco's flagship Baltimore Research & Technology Center, a state‑of‑the‑art facility dedicated to advancing coagulation science, developing next‑generation water treatment solutions, and translating laboratory innovation into full‑scale commercial impact.

Usalco

Research Scientist - Water Treatment Chemistry

Manatal

D., preferred in Data Science, Machine Learning, Computer Science, Mathematics, or a related field5+ years of experience developing statistical and AI/ML models using modern tools and best practices. This work supports the strategic vision to accelerate toward an AI-powered product safety Sentinel model—protecting more consumers, faster, from more hazards by leveraging analytics to shorten time to intervention.

Analytica

Data Scientist

ea_via_bold

In this role, you will be at the forefront of modernizing national security missions by designing and deploying advanced machine learning models, custom algorithms, and data workflows across complex law enforcement, intelligence, investigative, and business datasets. Advanced SQL and database management experience, including writing complex queries, optimizing database operations, and architecting basic ETL (Extract, Transform, Load) pipelines.

YEAR

Red Horse Corporation Ltd.

Mid Level Data Scientist

Job Title: Senior Data Scientist / AI Machine Learning Research EngineerJob Category: ScienceTime Type: Full timeMinimum Clearance Required to Start: TS/SCIEmployee Type: RegularPercentage of Travel Required: Up to 10%Type of Travel: Continental US* * * The Opportunity: CACI has an exciting new opportunity for a Senior AI and Machine Learning Research Engineer. 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.

<span itemprop="name">CACI</span> provides information solutions and services in support of national security missions and government transformation for Intelligence, Defense, and Federal Civilian customers. A member of the Fortune 1000 Largest Companies, the Russell 2000 Index, and the S&amp;P SmallCap 600 Index, CACI provides dynamic careers for over 15,800 employees working in over 120 offices worldwide. Visit <a href="http://www.caci.com" target="_blank" itemprop="url" mns_rt="Company">www.caci.com</a>.<br/>
      <br/>
      We strive to sustain a corporate culture based on integrity - one that's focused on treating customers ethically and making their priorities our priorities. We pride ourselves in finding and hiring people with the highest intellectual capital, and providing them with challenging opportunities and encouraging their innovation and initiative.

CACI

Senior Data Scientist / AI Machine Learning Research Engineer

You have built production NLP systems, worked with transformer-based architectures, and have direct experience with large language models – including fine-tuning, prompt engineering, and retrieval-augmented generation (RAG). RAG & Embeddings: Direct experience building retrieval-augmented generation pipelines, vector databases (Pinecone, Weaviate, FAISS, or equivalent), and semantic search systems.

BizFirst

Data Scientist – NLP / Generative AI

The role supports the resolution of operational and systems problems into data-driven solutions, guides analytic strategy, and advises leadership on mission impact, model risk, and data-informed tradeoffs. Collaborating with other data scientists, software developers, operators, project managers, and clients to prepare data for predictive modeling and develop data architectures.

SAIC is a premier Fortune 500® technology integrator driving our nation's digital transformation. Our robust portfolio of offerings across the defense, space, civilian, and intelligence markets includes secure high-end solutions in engineering, IT modernization, and mission solutions. Using our expertise and understanding of existing and emerging technologies, we integrate the best components from our own portfolio and our partner ecosystem to deliver innovative, effective, and efficient solutions that are critical to achieving our customers' missions.

We are a team of 26,000 strong driven by mission, united purpose, and inspired by opportunity. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $7.1 billion. For more information, visit saic.com.

Science Applications International Corp

Data Scientist Lead

As a leading global contract research organization (CRO), we partner with researchers to tackle complex scientific challenges, drive innovation, and help build a healthier, safer world. Whether you are starting your career or bringing years of experience, Inotiv offers opportunities to learn, grow, and play a meaningful role in advancing treatments for patients around the world.

Inotiv

Associate Scientist I – Bacterial Mutation

RCS considers several factors which can influence a final salary including but not limited to; skill set relevancy, work experience, geographic location, security clearance, education, certifications, training, and other business and organizational requirements. Creating and managing AWS resources, including provisioning EC2 instances, writing and deploying Lambda functions, creating and writing to S3, and managing authorization appropriately across resources with IAM policies.

Rapid Cycle Solutions

Aerospace Engineering (AEE), Communications Engineering (COE), Development Operations (ESA), Electrical Engineering (ELE), IT Architecture/Cloud (ESA), Mathemeticians (MAT), Mechanical Engineering (MCE), Modeling & Simulation Engineering (MSE), Production, Industrial, Material Engineering (MAE), Production, Industrial, Material Engineering (PIE), Research Physicists (PHY), Research Scientists (SCI), Software Architecture (SYA), Software Engineering (STE), Software Engineering (SWE), Specialized Engineering (BEE), Specialized Engineering (CHE), Specialized Engineering (ENE), Specialized Engineering (NUC), Statisticians (STA), Subject Matter Experts - Professional (SMP), Subject Matter Experts - Technical (SMT), Systems Engineering (SYE), Technical Project Management (TPR), Test Engineering (TSE) . Guidehouse is seeking experts with experimental and/or theoretical experience developing new technologies or capabilities to provide Scientific Engineering Technical Assistance (SETA) to program managers at the Defense Advanced Research Projects Agency (DARPA) in one or more of the following areas: Quantum technology for computation, sensing, networking, or algorithms.

Guidehouse

Technical Management Scientist/Engineer (SME)

Master''s degree or higher in Data Science, Computer Science, Mathematics, Statistics, Applied Mathematics, Electrical Engineering, or a closely related quantitative field. Demonstrated experience integrating AI/ML capabilities into multi-source data fusion workflows, including the correlation of structured and unstructured data from diverse sources.

Chief Data Scientist

QUALIFICATIONS: Education Level: Bachelor''s Degree in Statistics, Mathematics, Computer Science or related field OR in lieu of a Bachelor''s degree, an additional 4 years of relevant work experience is required in addition to the required work experience. Contribute to the analytics, reporting and data governance activity related to Member Identification/Stratification (ID/STRAT), Attribution/Program Assignment, Data Extracts/Sharing, Population Health Management, Predictive Modeling and Program Evaluation.

At the Blue Cross and Blue Shield Association (BCBSA), we provide business strategy, technical support and consulting expertise to 36 Blue Cross and Blue Shield companies across the nation, employing more than 1,000 of the best strategic thinkers in the industry.  We are a Brand manager that sets quality control standards for the 36 independent companies that use the Blue Cross and Blue Shield Brands, and we serve as a trade association that represents these Blue companies. It is through our involvement that the Blues companies share a united vision and strategy while also benefiting from the local strength of all member companies.

Blue Cross and Blue Shield Association

Lead Data Scientist (Hybrid)

Research Scientist

FULL_TIME

The successful candidate will leverage Python, SQL, NLP, machine learning, deep learning, and advanced data analytics to transform large volumes of structured and unstructured data into actionable insights that support senior-level decision-making related to production, resources, personnel, and organizational performance. Overview: We are seeking an experienced NLP Data Scientist / Machine Learning Engineer to provide advanced data science and Natural Language Processing (NLP) support for a data-driven business analytics organization.

Senior Data Scientist

[AW]-iCims

HOUR

Highly experienced Principal Gen AI Scientist with a strong focus on Generative AI (GenAI) to lead the design and development of cutting-edge AI Agents, Agentic Workflows and Gen AI Applications that solve complex business problems. You will serve as a hands-on Gen AI (data) scientist and critical thought leader, working alongside full stack developers, UX designers, product managers and data engineers to shape and implement enterprise-grade Gen AI solutions.

Pyramid, Inc

Data Scientist Specialist

Closure Technologies is seeking a Senior Data Scientist to analyze complex datasets, develop predictive models, and deliver data-driven insights that support innovative technology solutions for government clients. Experience in working with artificial intelligence, machine learning, natural language processing, data mining, statistics, and algorithms.

Closure Technologies

GreenHouseAPI

Experience in working with artificial intelligence, machine learning, natural language processing, data mining, statistics, and algorithms. Ability to develop persistent monitoring applications for statistical or machine learning processes using Python and SQL.

The candidate will work and collaborate across the broader team in continuous integration of new code into the head of the repository via an enterprise GitHub server, by identifying bugs in the code, devising, testing and submitting appropriate bug fixes, and by writing and testing new code that delivers new or improved model capabilities. Knowledge of or interest in code development and scientific application of state-of-the-art physics-based atmospheric models, particularly those extending deep into the upper atmospheres, including a demonstrated interest and aptitude in running, debugging and augmenting such codes on multiprocessor HPC architectures.

Computational Physics, Inc.

Scientist-Research

Talent Acquisition

Specialized experience for this position is defined as: Experience; 1) Drafting designs and carrying out scientific field sampling and monitoring programs as part of a pollution prevention and abatement program; and 2) applying knowledge of Federal, State, or other environmental regulations to provide scientific and technical advice, and guidance to at least one of the following; pollution prevention and abatement programs, natural resources protection and management issues, coordinating and developing environmental clearances (categorical exclusions, biological assessments, waste characterization, and/or disposal permits), or implementing environmental requirements in the field on construction/maintenance projects. Specialized experience is defined as: Experience; 1) Assisting with scientific field sampling and monitoring programs as part of a pollution prevention and abatement program; and 2) applying knowledge of Federal, State, or other environmental regulations to assist with at least one of the following; pollution prevention and abatement programs, natural resources protection and management issues, coordinating and developing environmental clearances (categorical exclusions, biological assessments, waste characterization, and/or disposal permits), or implementing environmental requirements in the field on construction/maintenance projects.

US Department of Energy

Physical Scientist (Environmental)

The ideal candidate is an experienced technical leader who can transform large, complex datasets into actionable intelligence, modernize analytic workflows, and develop scalable solutions that directly support enterprise decision-making and mission success. Your work will include designing compelling visualizations and dashboards that communicate complex findings in a clear, actionable manner, enabling mission partners to integrate data-driven insights into daily operations and strategic planning.

Grvty

Data Scientist - Senior

Tasks include field investigations (wetland delineation, stream assessments, tree surveys, Phase I ESAs, and compliance inspections); environmental inventories and constraints analysis supported by database reviews; CWA permitting; NEPA documentation; and agency coordination. Wetland Professional in Training (WPIT), Professional Wetland Delineator (PWD), Professional Wetland Scientist (PWS), Virginia State Waters Delineator (VSWD), ISA Certified Arborist, or similar certification is preferred.

Applications Scientist Jobs in Washington, DC

Research Scientist - Water Treatment Chemistry Usalco

Data Scientist Analytica

Mid Level Data Scientist Red Horse Corporation Ltd.

Senior Data Scientist / AI Machine Learning Research Engineer CACI

Data Scientist – NLP / Generative AI BizFirst

Data Scientist Lead Science Applications International Corp

Associate Scientist I – Bacterial Mutation Inotiv

Data Scientist Rapid Cycle Solutions

Technical Management Scientist/Engineer (SME) Guidehouse

Chief Data Scientist Science Applications International Corp

Lead Data Scientist (Hybrid) Blue Cross and Blue Shield Association

Research Scientist Usalco

Senior Data Scientist VTG

Data Scientist Specialist Pyramid, Inc

Senior Data Scientist Closure Technologies

Data Scientist Closure Technologies

Scientist-Research Computational Physics, Inc.

Physical Scientist (Environmental) US Department of Energy

Data Scientist - Senior Grvty

Environmental Scientist II Dewberry Engineers Inc

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