336 llm engineer jobs at 153 companies in Virginia
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AI Security & LLM Engineer
Reston, Virginia, United States
OnsiteFull Time
8+ YOEActive TS/SCI with CI polygraph, bachelor\u0002s and 8+ years relevant experience, IAT Level II and CSSP certifications required, proficiency in Rust or Python, experience with RAG pipelines, prompt injection defense, and token optimization.
Rust, Python, ChatGPT, Grok, Claude, Claude Code, Codex
1mo
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Senior AI Infrastructure Engineer, LLM/AI Platforms
Virginia or United States
$140k-$215k/yr RemoteFull Time
6+ YOE6+ years infrastructure/data engineering experience with 2+ years on LLM platforms; bachelor’s in CS or related; hands-on LLM infra, GPU cluster provisioning, distributed training, container orchestration, IaC, EMR/cloud experience, strong Python skills, technical leadership.
MLflow, Sagemaker, Vertex AI, CUDA, NVIDIA, GPU, TPU, vLLM, Triton Inference Server, Pytorch, Ray, Megatron, JAX, Python, Docker, Kubernetes, Slurm, Airflow, Terraform, Ansible, AWS, GCP, OCI, LangChain, LlamaIndex, Spark, Dask, Flink
3mo
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Lead AI Engineer (AI Foundations, LLM Customization and Finetuning)
Cambridge or McLean or San Jose or New York City
$197k-$225k/yr OnsiteFull Time
4+ YOEBachelor's in CS/AI/EE/CE with 4+ years or Master's with 2+ years in AI/ML; 4+ years Python/Go/Scala/Java
AWS, Hugging Face, VectorDBs, Nemo Guardrails, PyTorch, Python, Go, Scala, Java, C++
1mo
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Advanced Concepts Engineer
Arlington or Mount Laurel or San Diego or Fall River
$90k-$184k/yr HybridFull Time
3+ YOEBachelor's in STEM or equivalent experience, 3-5+ years relevant experience, ability to obtain/maintain Secret clearance, experience with distributed systems, cloud deployment, Agentic AI/LLM, systems engineering, and ~10% travel.
Agentic AI, LLM, SysML, UML, C++, Python, MATLAB, DOORS, Agile
2mo
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AI Engineer
Arlington, Virginia, United States
$78k-$176k/yr HybridFull Time
2+ YOE2+ years ML engineering experience; AI/LLM experience; prompt engineering; Python; cloud platforms; REST APIs; secret clearance eligibility; bachelor’s degree.
Python, AWS, Azure, GCP, LangChain, LlamaIndex, OpenAI, Anthropic, Weaviate, OpenSearch, Docker, CI/CD, REST APIs, LLMs, Embeddings
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Senior AI Engineer
Reston, Virginia, United States
$112k-$179k/yr HybridFull Time
5+ YOEUS citizen with active Secret clearance, 5+ years' experience (BS/BA), 5–10+ years in software/DevSecOps/platform engineering, 2+ years building AI/LLM apps, expertise with LLM frameworks, cloud (AWS/Azure/GCP), CI/CD, Python plus another language.
LangChain, LlamaIndex, AutoGen, CrewAI, GenAI.mil, AWS, Azure, GCP, Python, Java, JavaScript, Go, Kubernetes, MHS GENESIS
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LLMOps Engineer
McLean, Virginia, United States
$115k-$145k/yr OnsiteFull Time
2+ YOEAbility to obtain Public Trust; 2+ years in software/DevOps/MLOps/cloud engineering with LLM exposure; Python proficiency; experience with Hugging Face Transformers, LangChain or LlamaIndex, Docker, Kubernetes, and cloud platforms.
Python, Hugging Face Transformers, LangChain, LlamaIndex, Docker, Kubernetes, AWS, Azure, GCP, CI/CD
2w
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Agentic Engineer/Software Developer
Alexandria, Virginia, United States
HybridFull Time
5+ YOEActive Top Secret/SCI clearance, bachelor\u0002s or equivalent, 5+ years software/systems engineering, experience with Python/JavaScript/TypeScript/Go/Java/PHP/C#, cloud (AWS/Azure), CI/CD, containers, and AI/LLM integration.
Python, JavaScript, TypeScript, Go, Java, PHP, C#, OpenAI, Anthropic Claude, Azure OpenAI, Databricks, Docker, AWS, Microsoft Azure
2mo
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Senior AI/ML & Data Engineer
Chantilly, Virginia, United States
$100k-$203k/yr HybridFull Time
5+ YOE5+ years in AI/ML engineering, cloud data engineering, Python and ML frameworks, LLM development, MLOps, and secure environments.
SageMaker, Bedrock, Azure ML, Databricks, Ray, HuggingFace Transformers, PyTorch, TensorFlow, Scikit-learn, OpenAI, Anthropic, AWS, GCP, Terraform, CloudFormation, Jenkins, GitLab, Docker, Kubernetes, FedRAMP, NIST 800-53, Zero Trust
2w
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Principal Engineer
Eagan or Frisco or New York City or Toronto or Ann Arbor or San Francisco or Los Angeles or Irvine or McLean or Washington
$159k-$295k/yr HybridFull Time
Expertise in identity and access management, distributed systems, and AI/LLM integration; deep Python experience; cloud (AWS) and relational DB (PostgreSQL); strong communication and architecture ownership skills.
Python, FastAPI, PostgreSQL, AWS, Okta, Auth0, Entra ID/Azure AD, AWS Cognito, Anthropic, OpenAI, vector databases, SAML, OIDC, OAuth 2.0, RBAC/ABAC, MCP, LLMs
1mo
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Technical Engineer
Springfield, Virginia, United States
OnsiteFull Time
13+ YOEActive TS/SCI clearance; 13+ years (MA/MS) or 15+ years (BA/BS) in relevant discipline; degree in computer science, engineering or related; strong systems architecture, requirements, integration/testing, OpenShift/container deployment, Python/Java/GitLab, SPARQL, RDF/OWL, CI/CD, ISSO, and AI/LLM/RAG experience.
OpenShift, Python, Java, GitLab, AI/LLM/RAG, SPARQL, RDF/OWL, CI/CD, ISSO, Agile/Scrum
4w
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AI Prompt Engineer
Ashburn, Virginia, United States
$67k-$133k/yr HybridFull Time
0+ YOEU.S. citizen able to pass CBP background check, bachelor’s degree or equivalent, 0–3 years software development experience, 1+ year with LLMs, Python or JavaScript/TypeScript experience, familiarity with prompt engineering and RAG.
Large Language Models (LLMs), OpenAI GPT, Llama, Gemini, Python, JavaScript, TypeScript, Retrieval Augmented Generation (RAG)
4w
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AI Prompt Engineer
Ashburn, Virginia, United States
$67k-$133k/yr HybridFull Time
1+ YOEU.S. citizen required. Bachelor’s in CS or related (or equivalent),1+ year hands-on LLM experience,0–3 years software development experience,experience with Python or JavaScript/TypeScript,and familiarity with prompt engineering and RAG concepts.
OpenAI GPT, Llama, Gemini, Python, JavaScript, TypeScript
1mo
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AI Evaluation Engineer
Bucharest or Boulder or Boston or Chicago or Glendora or Richmond or London or Auckland
lei16k-lei19k/mo HybridFull Time
5+ YOEBachelor's in CS/Data/Math, 5+ years software engineering with focus on testing/evaluation or AI/ML tooling, strong Python, experience building evaluation pipelines and LLM eval concepts, familiarity with RAG and production data pipelines.
RAGAS, LangSmith, PromptFlow, Snowflake, Python, RAG
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AI Engineer
Norfolk, Virginia, United States
OnsiteFull Time
5+ YOE5+ years building and deploying ML/AI systems; expert Python and DL frameworks; experience with LLMs, RAG, embeddings, vector search; AWS ML services and containerized deployments; active DoD Secret clearance.
Python, pandas, NumPy, scikit-learn, PyTorch, TensorFlow, Hugging Face, AWS GovCloud, SageMaker, Bedrock, Step Functions, Lambda, S3, IAM, Docker, ECS, EKS, OpenSearch, pgvector
1mo
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Principal Software Engineer - AI
Woodland Hills or Los Angeles or Alabama or Arizona or California or Colorado or Connecticut or Florida or Georgia or Illinois or Indiana or Kentucky or Massachusetts or Michigan or North Carolina or New Jersey or Nevada or New York or Ohio or Pennsylvania or South Carolina or Texas or Utah or Virginia
$200k-$230k/yr HybridFull Time
10+ YOE10+ years software engineering experience, 5+ years backend work in Python or PHP, expertise building LLM-based AI agent systems, production LLM API integration, MySQL proficiency, and automated testing for AI workflows.
LLM, OpenAI, Claude, GitHub Copilot, MySQL, Python, Django, Flask, PHP, Symfony, Laravel, React
3d
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Forward Deployed Engineer - AI
Arlington or Jersey City
$180k-$230k/yr OnsiteFull Time
5+ YOE5+ years software engineering/solutions architecture/consulting,2+ years building production AI/LLM solutions,experience with Azure OpenAI,AWS Bedrock,Google Vertex AI,LangChain,Semantic Kernel;Python,C#,TypeScript;strong communication;willingness to travel ~40%.
Azure OpenAI, AWS Bedrock, Google Vertex AI, Anthropic, LangChain, Semantic Kernel, Python, C#, TypeScript, Pinecone, Milvus, Weaviate, Chroma, Model Context Protocol (MCP), Azure, AWS, GCP, Microsoft 365
3w
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Java Software Engineer
Reston, Virginia, United States
$90k-$122k/yr HybridFull Time
2+ YOE2+ years software development experience; strong CS fundamentals; AWS experience; familiarity with Java/Spring Boot, UNIX, secure coding, and machine learning/LLM concepts; Bachelor's or equivalent.
AWS, Java, Spring Boot, TensorFlow, Hadoop, Spark, GitHub, Jira, Jenkins, Terraform, Ansible, Unix
1mo
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AI/CNO Engineer
Dulles, Virginia, United States
OnsiteFull Time
Experience deploying and managing LLMs in offline environments, supporting cybersecurity and vulnerability research, building APIs and tooling, strong systems integration skills, active TS/SCI or ability to obtain polygraph.
Opus, Sonnet, MiniMax, Qwen
3w
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Forward Deployed Engineer (FDE) - Public Sector, Nonprofit & Education
McLean or Maryland or Chicago or West Virginia or Virginia or Irvine or Indianapolis or San Francisco or New York City or Dallas or Denver or Atlanta or Austin
$89k-$288k/yr HybridFull Time
3+ YOE3+ years software engineering or technical delivery experience, customer-facing delivery experience, production systems experience, proficiency with Python/JavaScript/TypeScript/Java/Apex, hands-on LLM and data integration experience.
Cursor, Claude, Vibes, Agentforce, Python, JavaScript, TypeScript, Java, Apex, LangChain, LlamaIndex, Snowflake, Databricks, BigQuery
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