294 langchain jobs at 128 companies in Washington, DC

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AI/ML Engineer Remote Nationwide or Hybrid in MN/DC
Minnetonka or Minneapolis or Washington or United States
$99k-$176k/yr RemoteFull Time
UnitedHealth Group
UnitedHealth GroupNYSE: UNH: Provides health insurance and technology-enabled health care services.
3+ YOE3+ years experience with LLMs, machine learning, fine-tuning, Python coding, LangChain, RAG, Docker, and production-quality practices; undergraduate degree or equivalent.
LangChain, Docker, Python, Git, XGBoost
2mo
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AI Agent & Automation Developer
Raleigh or Atlanta or Richmond or Tampa or Tysons Corner or Ft. Lauderdale or Denver or Augusta or Charlotte or Chicago or Coral Gables
$54k-$134k/yr HybridFull Time
Cherry Bekaert
Cherry Bekaert: Provides accounting, tax, and business advisory services to organizations.
2+ YOEBachelor's in CS/AI; 2+ years in agent-based systems; Python; LangChain/OpenAI/PyTorch; AI/ML libraries; API/backend experience; strong communication.
Python, LangChain, OpenAI API, Hugging Face, PyTorch, APIs
3w
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Architect, GenAI
Arlington or Chicago or United States
$170k-$210k/yr RemoteFull Time
Lovelytics
Lovelytics: A consulting firm that modernizes clients\u001fs data and delivers production AI solutions across industries.
7+ YOEBS in CS or equivalent,7+ years ML/NLP experience with 2+ years in Generative AI on Databricks; proficiency with Databricks, MLFlow, LangChain, and LLM tooling; strong communication and architecture experience.
DSPy, MLFlow, LangChain, LlamaIndex, Databricks Mosaic AI, OpenAI GPT, LLaMA, Claude, Hugging Face Transformers, Databricks, Unity Catalog, Delta Tables, Mosaic AI Eval
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Technology Consultant 2
Plano or Raleigh or Reston or Richardson or Tempe
OnsiteFull Time
Infosys
InfosysNYSE: INFY: Provides IT consulting, software development, and business outsourcing services.
Experience in AI/ML development, IDP and document understanding, TensorFlow/PyTorch/Scikit-learn/Hugging Face/LangChain, AWS and SageMaker; bachelor's degree or equivalent experience; must be authorized to work in the U.S.
TensorFlow, PyTorch, Scikit-learn, Hugging Face, LangChain, AWS, SageMaker
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Staff Machine Learning Engineer - Leasing
Santa Barbara or San Diego or San Francisco or Denver or Dallas or Atlanta or Chicago or Washington, D.C.
HybridFull Time
AppFolio
AppFolioNASDAQ: APPF: Provides cloud-based property and investment management software.
Proven experience building production ML systems at scale, architectural leadership, training/fine-tuning LLMs, experience with LangChain/LangGraph and RAG patterns, AI safety/authorization, and production reliability discipline.
LangChain, LangGraph, vLLM, TensorRT, Triton
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Data Engineer II
Columbia or United States
$93k-$100k/yr RemoteFull Time
eSimplicity
eSimplicity: Provides digital and data services to federal government agencies.
5+ YOEBachelor's degree, 5+ years systems engineering experience, LLM and generative AI expertise, Python, cloud (Azure/AWS/GCP) experience, LangChain/LlamaIndex familiarity, and ability to obtain Public Trust clearance.
LangChain, LlamaIndex, LoRA, PEFT, Python, Microsoft Azure, Amazon Web Services (AWS), Google Cloud Platform (GCP), Databricks, Snowflake, Spark, GPU
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Principal Associate, Data Scientist - People Strategy & Analytics
McLean, Virginia, United States
$162k-$185k/yr OnsiteFull Time
Capital One
Capital OneNYSE: COF: Financial services offering credit cards, banking, and loans.
3+ YOEAdvanced degree in a quantitative field (or equivalent) plus multi-year analytics experience; strong Python, SQL, ML, LLM, and cloud (AWS) experience; experience with PyTorch/TensorFlow, Hugging Face, LangChain, and Snowflake preferred.
Python, SQL, AWS, LangChain, Hugging Face Transformers, VectorDBs, PyTorch, TensorFlow, Snowflake, LLMs
3mo
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AI Engineer- Associate
Washington or Orlando or Montvale or New York City or Dallas
OnsiteFull Time
KPMG
KPMG: Global professional services network providing audit, tax, and advisory.
1+ YOE1+ year software engineering or data science experience, bachelor’s in CS or related, strong Python skills, Git, willingness to work with Azure, Docker, Kubernetes, LangChain, Semantic Kernel, and US work authorization required.
Python, Git, Azure, Docker, Kubernetes, LangChain, Semantic Kernel
2mo
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Enterprise Account Software Systems Engineer - TS/SCI with Polygraph
Herndon, Virginia, United States
HybridFull Time
Finch Computing
Finch Computing: Enterprise AI platform for real-time unstructured text analytics.
Active TS/SCI with Poly; strong software engineering/DevOps; experience with Kubernetes, Docker, Helm, Terraform, AWS GovCloud, Python, LangChain; data pipelines (NIFI, Airflow, Kafka); API/microservices; DoD/IC experience.
Kubernetes, Docker, Helm, Terraform, AWS GovCloud, Python, LangChain, Apache NIFI, Airflow, Kafka, REST, APIs, microservices
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Senior AI Engineer
McLean, Virginia, United States
HybridFull Time
Rohirrim
Rohirrim: AI platform for enterprise proposal and procurement management.
8+ YOE8+ years software engineering experience (≥1 year on LLMs/agents); strong Python; experience with LLM orchestration (LangChain/LangGraph/AutoGen), RAG, vector DBs, embeddings, production ML pipelines, cloud, containers, and observability.
Python, LangGraph, AutoGen, CrewAI, LangChain, Pinecone, Weaviate, pgvector, LLaMA, Mistral, Docker, Kubernetes, AWS, Azure, GCP
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Senior Forward Deployed Engineer
Owings Mills, Maryland, United States
$130k-$150k/yr OnsiteFull Time
Tata Consultancy Services
Tata Consultancy ServicesNational Stock Exchange of India: TCS: Global provider of IT services, consulting, and business solutions.
12+ YOE12+ years software/data engineering experience delivering AI/GenAI/LLM/RAG/agentic solutions; strong Python, AWS, EM production skills; experience with embeddings, vector DBs, LangChain-family tools and enterprise integrations.
Anthropic Claude, Amazon Bedrock, Python, FastAPI, Flask, LangChain, LangGraph, LlamaIndex, AutoGen, RAG, Lambda, API Gateway, Step Functions, ECS, EKS, S3, IAM, KMS, CloudWatch, CloudTrail, CI/CD, MCP servers
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AI Engineer - Mission Innovation Lab
Pittsburgh or Arlington
OnsiteFull Time
Carnegie Mellon University
Carnegie Mellon University: Global research university providing higher education and conducting scientific research.
8+ YOEBS+8yrs or MS+5yrs in CS/ML/Math; proficiency in Python and a compiled language; experience with LLM fine-tuning, RAG, LangChain, Hugging Face, containers, CI/CD; ability to obtain and maintain DoW security clearance.
Python, C/C++, Java, REST, GraphQL, Docker, Kubernetes, LangChain, Hugging Face Transformers, TensorFlow, PyTorch, JAX, Airflow, Prefect, Ray, DeepSpeed, ZeRO, FastAPI, gRPC
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EY-Parthenon - Strategy and Execution - Growth Platforms - AI ML Engineering - Director (New York, NY, US, 10001-8604)
New York or Atlanta or Boston or Chicago or Dallas or Denver or Detroit or Houston or Los Angeles or McLean or Hoboken or Philadelphia or San Francisco or Seattle
$205k-$235k/yr HybridFull Time
EY
EY: Global firm providing audit, tax, and professional consulting services.
3+ YOEBachelor's plus 5 years (or graduate degree plus ~3 years) of AI/ML engineering experience; fluency in Python and PyTorch/TensorFlow; experience with LangChain, RAG, vector DBs and production ML pipelines; strong communication and leadership skills.
LangChain, LlamaIndex, Haystack, Pinecone, Weaviate, Chroma, Python, PyTorch, TensorFlow, Microsoft Copilot
1mo
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Full Stack Developer (Python, JavaScript) - TS/SCI clearance required
Fort Belvoir, Virginia, United States
OnsiteFull Time
Leading Path Consulting
Leading Path Consulting: Provides technology and management consulting services to government and enterprise clients.
Requires Security+ (DoD 8140), TS/SCI clearance, experience coding front- and back-end webapps with JavaScript and Python, familiarity with Git; Mac/Linux CLI, prototyping with Python notebooks/Streamlit, LangChain and AI/ML experience preferred.
JavaScript, Python, TypeScript, Java, C/C++, Git, Bash, ssh, Python notebooks, Streamlit, Model Context Protocol (MCP), LangChain, SQL, graph, vector
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Senior AI Solutions Architect, Generative AI
Reston, Virginia, United States
$180k-$225k/yr HybridFull Time
Amentum
AmentumNYSE: AMTM: Provides engineering, technology, and mission support to government agencies.
8+ YOE8+ years in AI/ML with 3+ years hands-on Generative AI/LLM experience; production deployment of RAG/agent workflows; experience with PyTorch, LangChain, vector DBs, and cloud-native Azure/AWS/GCP; US citizenship required.
PyTorch, LangChain, LlamaIndex, Semantic Kernel, Azure OpenAI, Azure AI Foundry, AWS Bedrock, SageMaker, Azure, AWS, GCP
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Prompt Engineer
McLean, Virginia, United States
$115k-$140k/yr OnsiteFull Time
Steampunk
Steampunk: Provides digital transformation and IT consulting for federal agencies.
5+ YOEBachelor's in a related field, 5+ years total experience with 2+ years in AI/ML or related roles; ability to hold Public Trust; experience designing/testing prompts, RAG and retrieval strategies, Python and AI frameworks (LangChain, LlamaIndex).
LangChain, LlamaIndex, Python, GPT, Claude, Gemini, Llama, RAG
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AI Evaluation Scientist
McLean, Virginia, United States
$105k-$145k/yr OnsiteFull Time
Steampunk
Steampunk: Federal digital transformation and consulting services provider.
2+ YOEPublic Trust eligible;Bachelor's degree in CS or related field;2+ years evaluating ML/NLP/LLM systems;proficiency with Python, PyTorch, Hugging Face, scikit-learn, LangChain;experience with evaluation frameworks and OpenTelemetry-based tools.
Python, PyTorch, Hugging Face, scikit-learn, LangChain, Ragas, DeepEval, OpenTelemetry
2mo
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SME AI Engineer
Columbia, Maryland, United States
$225k-$247k/yr OnsiteFull Time
Assured Information Security
Assured Information Security: Provides cybersecurity research and products for national defense missions.
15+ YOEMaster's (15+ yrs) or Bachelor's (18+ yrs) and extensive experience designing, building, integrating, or evaluating AI/ML applications; familiarity with LLMs, RAG, prompt engineering, agentic frameworks (e.g., LangChain); TS/SCI w/CI Poly required.
LangChain, LangGraph, Semantic Kernel, AutoGen, CrewAI, Haystack, Llamalndex, Python, JavaScript, TypeScript
1mo
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Generative AI Deployment Engineer
Manassas, Virginia, United States
$89k-$178k/yr HybridFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
1+ YOEBachelor's degree in Software Engineering/Computer Science/ML (or related STEM), 1+ year relevant experience, experience with AI agents/LLMs, RAG, LangChain/MCP, active Secret clearance, ability to work onsite in Manassas, VA and with air-gapped deployments.
LangChain, MCP, Retrieval Augmented Generation (RAG), Large Language Models (LLM), Docker, Kubernetes
1mo
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Senior AI Developer
Dahlgren, Virginia, United States
$106k-$185k/yr HybridFull Time
Arcfield
Arcfield: Systems engineering and mission support for defense and space.
3+ YOERequires active Secret clearance and ability to obtain TS/SCI, DoDD 8140.01 IAM Level I, strong Python experience (FastAPI a plus), experience with AI frameworks (Haystack, LangChain, LlamaIndex), RAG workflows, context engineering, MCP servers, and model evaluation.
Python, FastAPI, Haystack, LangChain, LlamaIndex, Model Context Protocol (MCP), RAG