72 machine learning researcher jobs at 40 companies in Leesburg, VA
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Machine Learning Engineer
Chantilly, Virginia, United States
OnsiteFull Time
3+ YOEActive TS/SCI+CI poly required, Bachelor's with minimum 3 years' experience, proficiency in Python and SQL, familiarity with JavaScript, containerization, REST/FastAPI, agentic AI, NLP, and prompt engineering.
Python, SQL, Javascript, Docker, Rocky Linux, Rest, FastAPI, Langchain, LangGraph, OpenAI Agents, Pydontic, UVicorn, Streamlit, AWS, Mandiant
3w
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Machine Learning Engineer
Arlington or Woburn
$115k-$140k/yr OnsiteFull Time
Active Secret security clearance with SCI eligibility and U.S. citizenship; BS/MS in a quantitative field; experience applying and deploying AI/ML with Python and common libraries; strong collaboration and communication skills.
Python, NumPy, Pandas, scikit-learn, PyTorch, matplotlib, Git, JIRA, Confluence, AWS, Hadoop, Spark, Dask, MapReduce
1mo
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Applied Researcher I (AI Foundations, Recommendation Systems, Personalization, Reinforcement Learning)
McLean or Cambridge or New York City or San Jose
$219k-$272k/yr OnsiteFull Time
2+ YOEPhD in a relevant technical field, or MS plus 2 years of applied research. Requires AI foundation model experience, deep learning expertise, scalable model delivery, machine learning research accomplishments, and research agenda ownership.
PyTorch, AWS Ultraclusters, Hugging Face, Lightning, VectorDBs
1mo
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Applied Researcher I (AI Foundations, Recommendation Systems, Personalization, Reinforcement Learning)
McLean or Cambridge or New York City or San Jose
$219k-$272k/yr OnsiteFull Time
2+ YOEPhD in a relevant technical field, or master's degree plus 2 years of applied research experience; expertise in AI, deep learning, machine learning, model development, and scalable production systems.
PyTorch, AWS Ultraclusters, Hugging Face, Lightning, VectorDBs
2w
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Artificial Intelligence/Machine Learning (AI/ML) Engineer 1
Laurel, Maryland, United States
$112k-$179k/yr OnsiteFull Time
2+ YOE2+ years applied machine learning experience, TS/SCI clearance with polygraph, BSc in STEM or equivalent experience, expertise in model design, training, deployment, and strong analytical and communication skills.
Python, Java, C, R
2w
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Artificial Intelligence/Machine Learning (AI/ML) Engineer 1
Laurel, Maryland, United States
$112k-$179k/yr OnsiteFull Time
2+ YOE2+ years applied machine learning experience, BS in mathematics/computer science or equivalent experience, ability to train/retrain/deploy models, perform statistical analysis, and obtain/maintain TS/SCI with Poly.
Python, Java, C, R
2d
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Artificial Intelligence / Machine Learning Verification and Validation Engineer
Reston or State College
$111k-$241k/yr OnsiteFull Time
Bachelor's degree in engineering, science, computer science, data science, information science, or related field; Python and SQL proficiency; machine learning knowledge; clearance eligibility and U.S. citizenship required.
Python, SQL, CVAT, Label Studio, DVC, LakeFS, Docker, Kubernetes, AWS, Azure
3mo
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2026 PhD Graduate - Machine Learning and Artificial Intelligence
Laurel, Maryland, United States
$105k-$245k/yr OnsiteFull Time
PhD in data science, statistics, physics, mathematics, or computer science; strong collaboration and ML math fundamentals; experience with ML libraries; eligible for Interim Secret clearance and eventual Top Secret; U.S. citizenship.
PyTorch, TensorFlow, Scikit-learn
3mo
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Senior Advisor - Artificial Intelligence and Machine Learning
Alexandria, Virginia, United States
HybridFull Time
15+ YOESenior-level AI/ML expert with 15+ years experience; CTO/ senior research experience; defense/national security applications; DoD acquisition familiarity; PhD in CS/AI/Data Science; Top Secret/SCI clearance.
AI/ML, Deep Learning, Generative AI, Reinforcement Learning, AI Assurance, Data Analysis, Policy Translation
1d
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Engineering Manager – Machine Learning Engineering
Chantilly, Virginia, United States
$148k-$221k/yr OnsiteFull Time
6+ YOEBachelor's degree in a STEM field and 6+ years of engineering or scientific experience in data science, machine learning, or AI research. Requires team leadership, ML/AI, software engineering, statistics, communication, and security clearance eligibility.
elastic compute clouds, containerization, microservices, real-time operating systems, visualization frameworks, GitHub, Kaggle
2mo
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Senior Data Scientist / AI Machine Learning Research Engineer
Sterling, Virginia, United States
$113k-$238k/yr OnsiteFull Time
7+ YOEMaster's in quantitative field +7 years experience, US citizen with active Top Secret/SCI clearance (polygraph), strong ML, statistics, Python/SQL, cloud (AWS/Azure/GCP), Spark/Airflow, TensorFlow/PyTorch/scikit-learn, and Linux experience.
AWS, Azure, GCP, Python, SQL, Spark, Airflow, TensorFlow, PyTorch, scikit-learn, Linux
1d
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Novel Solutions for Accelerated Pavement Testing Research Needs
McLean, Virginia, United States
$86k/yr OnsiteFull Time
Postdoctoral or senior researchers with interests in accelerated pavement testing, material characterization, sensor technologies, pavement analysis, machine learning, or pavement modeling; must have lived in the United States for three years.
machine learning, artificial intelligence
1mo
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Postdoctoral Fellows - Computational Biology & Machine Learning
Bethesda, Maryland, United States
$53k-$78k/yr OnsiteFull Time
0+ YOEPhD in a relevant computational biology field, strong statistical and computational modeling for genomics, AI/ML experience, proficiency in Python/R/C/C++, workflow managers (Snakemake/Nextflow), cloud/HPC familiarity, publication record, strong communication.
Python, R, C/C++, pandas, NumPy, SciPy, scikit-learn, Bioconductor, Snakemake, Nextflow, Google Cloud, Amazon AWS, SLURM, SGE
4d
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Summer 2027 AI Applied Research Internship
Washington, District of Columbia, United States
$25/hr OnsiteInternship, Temporary
Current MS or PhD student returning after the fellowship, with production-quality Python and PyTorch, machine learning fundamentals, modeling experience, and reproducible experiment practices.
Python, PyTorch, PPO, SAC, DQN, IQL, CQL, TD3+BC, Decision Transformer, MAPPO, QMIX, CVaR, MLOps, version control
1mo
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STINGRAI Cognitive Science (AI/ML) Engineer (Engineer Machine Learning 2) - 29202
Washington, District of Columbia, United States
$99k-$175k/yr OnsiteFull Time
2+ YOETop-Secret clearance required; experience designing and implementing AI/ML and deep learning algorithms, data-mining architectures, and integrating ML into enterprise and modeling/simulation systems; proficiency with Git and cloud/container technologies.
Git, cloud computing, containerization, database systems, parallelization
2mo
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Senior Data Scientist / AI Machine Learning Research Engineer
Sterling, Virginia, United States
$113k-$238k/yr OnsiteFull Time
7+ YOEMaster’s degree in quantitative field with 7+ years of experience; strong ML/statistics background; Linux familiarity; US citizen with ability to obtain/maintain security clearance; Top Secret/SCI clearance.
Python, SQL, Spark, Airflow, TensorFlow, PyTorch, scikit-learn, Linux, AWS, Azure, GCP, Docker, Kubernetes, CI/CD
1w
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GDIT 2027 Summer AI / ML Internship
Falls Church, Virginia, United States
$23-$31/hr HybridInternship, Full Time
0+ YOECurrently enrolled in an associate, bachelor's, or master's STEM program; basic Microsoft Office knowledge, AI software tools experience, and collaboration skills required. One semester must remain after internship.
Microsoft Office, Microsoft Word, Microsoft PowerPoint, Microsoft SharePoint, Microsoft Excel, Microsoft Teams, AI/ML, AI Software Tools
2w
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Student Research Specialist III _Non-FWS
Washington, District of Columbia, United States
$20/hr HybridPart Time
Previous research, training, or skills required; proficiency in Python, machine learning, data analysis, visualization, Git/GitHub, and reproducible workflows. Quantitative coursework or experience required.
Python, Jupyter, Google Colab, Git, GitHub, pandas, NumPy, matplotlib, plotly, scikit-learn, PyTorch, TensorFlow, Hugging Face transformers, LLM APIs, MICS, DHS
1mo
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Senior Autonomy Systems Research Scientist
Pittsburgh or Arlington
OnsiteFull Time
Experience leading machine learning and robotics research; programming in Python and C/C++; strong written/verbal communication; proposal writing; ability to obtain Department of War security clearance.
Python, C, C++
2mo
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Research Assistant
Washington, District of Columbia, United States
OnsiteFull Time
5+ YOEB.S. in Computer Science/Computer Engineering/Information Systems required; 5+ years in machine learning and data science (advanced degrees may offset); mastery of Python, Java, C++, C, R; experience with scikit-learn, TensorFlow, PyTorch, JSON, XML; human-subjects research and data analysis experience.
Python, Java, C++, C, R, scikit-learn, TensorFlow, PyTorch, JSON, XML
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