48 llm engineer jobs at 27 companies in Halfway, MD
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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)
1mo
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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
2mo
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Staff AI Engineer
Gaithersburg, Maryland, United States
$185k-$220k/yr RemoteFull Time
6+ YOE6+ years production software engineering experience, 2+ years building LLM-powered systems, strong Python coding, statistical literacy, eval design for LLMs, product and end-to-end system ownership skills.
Python, LLM, OpenAI, Anthropic
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
2w
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Sr. AI/ML Engineer II (6707)
Reston or Herndon or Tysons Corner
$212k-$248k/yr HybridFull Time
10+ YOETS/SCI CI clearance, 10+ years experience, Bachelor's or equivalent, expert in Generative AI/LLMs/NLP/RAG/neural networks, 8+ years with Python/R/Anaconda/Numpy/TensorFlow/Keras/SciKit-Learn/Postgres, AWS IL6+ and CI/CD experience.
Python, R, Anaconda, Numpy, TensorFlow, Keras, SciKit-Learn, Postgres, AWS
1mo
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Principal System Architecture Standards Engineer
Herndon or Littleton
$127k-$182k/yr OnsiteFull Time
10+ YOEMaster’s or Ph.D. in EE/Telecommunications/IT/Data Science, 10+ years in wireless standards (3GPP/GSMA/TM Forum), deep 3GPP SA5/SA6/SA2 knowledge, AI/ML and observability expertise, and standards leadership experience.
3GPP SA5, 3GPP SA6, 3GPP SA2, TM Forum, GSMA, GenAI, LLM, OpenTelemetry, OpenInference, MCP, A2A, LangGraph, CrewAI, Strands, AutoGen, NWDAF, MDAF, Cloud-native Network Functions (CNFs)
2mo
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Software Engineer II
Herndon, Virginia, United States
OnsiteFull Time
5+ YOE5+ years ML engineering; 1+ year fine-tuning LLMs/VLMs; Python, PyTorch; AWS; TS/SCI with Poly; SCIF access
Python, PyTorch, HuggingFace, SageMaker, DeepSpeed, Docker, ECR, EKS, MLflow, Weights and Biases, SageMaker Experiments, TensorRT, ONNX
5d
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AI/ML Engineer
Herndon, Virginia, United States
$104k-$166k/yr OnsiteFull Time
5+ YOEBachelor’s plus 5+ years, Master’s plus 3+ years, or PhD with applied software and AI/ML experience; strong Python skills, additional programming language, LLM API integration, and US citizenship with ability to obtain FAA Public Trust.
Python, C, C++, JavaScript, Go, Java, PyTorch, TensorFlow, Anthropic Model Context Protocol (MCP), Docker, Kubernetes, Terraform, API, LLM, OSI
2w
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AI/ML Machine Learning Engineer
Herndon or King of Prussia or Littleton or Sunnyvale
$89k-$178k/yr OnsiteFull Time
Bachelor's in STEM, experience with ML/AI and LLM/agentic technologies, strong Python skills, experience with modern ML frameworks, cloud and MLOps, agile development and strong communication.
Python, TensorFlow, PyTorch, Keras, Scikit-learn, AWS, Kubernetes, MLOps, DevOps, CI/CD, Scrum, Kanban, LLM
2mo
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AI Lead Developer - Aerospace
Herndon or Mobile
$145k-$175k/yr HybridFull Time
6+ YOE6+ years in software/data engineering with production ML/AI deployments; bachelor\u0002s in engineering; expertise in generative AI, LLMs, RAG, Python, Kubernetes, cloud (GCP/AWS), CI/CD and MLOps; leadership and mentorship experience.
AWS, GCP, Palantir, Palantir Foundry, Python, Kubernetes, LangGraph, ADK, CI/CD, MLOps, APIs, RAG, LLMs, Generative AI
1mo
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Product Developer | Forward Deployed
Herndon or Minneapolis or Lehi
$94k-$151k/yr HybridFull Time
4+ YOE4+ years technical delivery or software engineering experience, production coding ability (Python, JavaScript/TypeScript, C#), customer-facing delivery, AI/LLM knowledge, bachelor's degree or equivalent.
Python, JavaScript, TypeScript, C#
1mo
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Sr. Cybersecurity Engineer
Ashburn, Virginia, United States
$145k-$233k/yr HybridFull Time
5+ YOE5+ years relevant experience with a Bachelor's (or alternate degree/experience paths), cloud security engineering in AWS/Azure/GCP, Python or Go development, GenAI/agent experience, IaC (Terraform), policy-as-code (OPA/Rego, Sentinel), and technical leadership.
Python, Go, Terraform, Infrastructure-as-Code (IaC), OPA/Rego, Sentinel, AWS, Azure, GCP, AWS Service Control Policies (SCP), GitOps, Wiz, Prisma Cloud, Microsoft Defender for Cloud, ADX, Sumo Logic, LLM, GenAI
4w
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AI/ML Engineer
Arlington or Sterling
$99k-$206k/yr OnsiteFull Time
5+ YOEU.S. citizen with active Secret (TS/SCI preferred), 5+ years in automation/data/software engineering, strong Python, AWS data pipelines, ML/LLM integration (Amazon Bedrock), Databricks, APIs, and CI/CD; BS in CS/Data Science or equivalent experience.
Python, Databricks, Amazon Bedrock, Git, Docker, Kubernetes, Airflow, Prefect, Kafka, Kinesis, Spark, Hadoop
1w
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Software Engineer II
Virginia or Maryland or District of Columbia or Herndon
$100k-$125k/yr RemoteFull Time
2+ YOEBachelor's degree, US citizenship, 2+ years software development experience; strong Java, microservices, AWS, container, and AI/LLM experience; familiarity with REST/SOAP/RPC, Git, Maven, and modern IDEs.
node.js, Java, Spring, Hibernate, Springboot, Quarkus, GIT, Maven, Eclipse, IntelliJ, Docker, Podman, ECS, S3, Lambda, EventBridge, SQS, AWS Batch, CloudWatch, Python, AWS Bedrock, Sagemaker
3w
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AI Developer
Winchester, Virginia, United States
$100k-$130k/yr OnsiteFull Time
3+ YOEBachelor's in CS/AI/Data Science,3+ years AI/ML or software experience,proficiency in Python,advanced SQL,API integration,experience with web AI and ERP integrations,knowledge of LLMs and MLOps.
Python, NetSuite ERP, OpenAI, Azure OpenAI, Docker, Kubernetes, MLflow, SQL, AWS, Azure, GCP
1mo
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GenAI Developer
Ashburn, Virginia, United States
$52-$94/hr OnsiteFull Time
7+ YOEU.S. citizenship and CBP background check, BA/BS or equivalent experience, 7+ years full-stack development (React/Angular, SQL/NoSQL), familiarity with LLMs and GenAI, Python/Java/JavaScript/TypeScript, cloud (AWS, Google), API and DevSecOps experience.
React, Angular, SQL, NoSQL, Python, Java, JavaScript, TypeScript, AWS, Google, Google Vertex AI, AWS Bedrock, GitLab, RESTful services, DevSecOps
1mo
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NLP Engineer - Clearance Required
Herndon, Virginia, United States
OnsiteFull Time
5+ YOESecret clearance (or ability to obtain), 5+ years in data science/ML, deep NLP and knowledge-graph experience, Python and ML framework proficiency, cloud experience, strong communication and independent work skills.
Python, scikit-learn, PyTorch, TensorFlow, transformers, Jupyter, git, Resource Description Framework (RDF), Labeled Property Graph (LPG), Graph RAG (Retrieval-Augmented Generation), LLM, AWS, Azure, GCP
1mo
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Software Engineer, AI Agents & Generative AI
Herndon or United States or Colorado or New Jersey or Delaware or District of Columbia or California
$146k-$246k/yr HybridFull Time
7+ YOEU.S. person required, Bachelor's degree in CS or related field, 7+ years relevant experience, strong software development in Python/JavaScript, cloud ML/data pipeline experience (AWS or GCP), experience with multi-agent frameworks and LLM integration.
Google ADK, LangChain, LangGraph, GPT-4, Claude, Gemini, Codex, Gemini CLI, Claude Code, Python, JavaScript, Google Cloud, AWS, GCP, CI/CD
1mo
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Senior AI-ML Integration Software Engineer
Reston, Virginia, United States
$150k-$175k/yr RemoteFull Time
8+ YOE8+ years software development experience; strong PHP and backend skills, familiarity with modern JavaScript frameworks, AWS and DevOps tooling, experience integrating/deploying LLMs and AI/ML workflows; US citizenship and ability to obtain government security clearance.
PHP, PHP 8.x, Symfony, JavaScript, React, React Native, Polymer, HTML5, CSS3, MySQL, SQL, NoSQL, AWS, EC2, RDS, S3, Lambda, API Gateway, Cognito, DynamoDB, Terraform, Git, Jenkins CI, RESTful APIs, AWS Bedrock, Large Language Models (LLMs)
1mo
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Project Integrator (TS/SCI with Poly Required)
Dulles, Virginia, United States
$108k-$180k/yr OnsiteFull Time
5+ YOEUS citizen with active TS/SCI + Poly required, 5+ years relevant experience, BA/BS preferred; experience integrating LLM/AI systems, Python, CI/CD (Jenkins), Docker, Kubernetes, APIs/microservices, and deploying AI/ML workloads.
Python, DevOps, CI/CD, Jenkins, Docker, Kubernetes, APIs, microservices, LLM, AI/ML
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