501 llm engineer jobs at 206 companies in Gainesville, VA
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AI Security & LLM Engineer
Reston, Virginia, United States
OnsiteFull Time
AnaVation: Providing technical engineering and cybersecurity solutions for federal agencies.
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
Senior Lead AI Engineer (FM Hosting, LLM Inference)
New York City or McLean or San Jose or Cambridge
$230k-$286k/yrOnsiteFull Time
Capital OneNYSE: COF: Provides credit card, banking, and auto loan services.
6+ YOEBachelor’s plus 6 years or master’s plus 4 years in AI/ML development; 6 years programming in Python, Go, Scala, or Java; cloud AI deployment and engineering leadership preferred.
eSimplicity: Provides digital and data services to federal government agencies.
10+ YOEBachelor's degree and 10+ years software engineering; experience building agentic AI, MCP integrations, LLM workflows, cloud deployments, Python, EMR/CI/CD knowledge, and ability to obtain public trust clearance.
Model Context Protocol (MCP), LLM, Python, Azure, AWS, Google Cloud Platform (GCP), Databricks, Snowflake, Spark, Strands Agents, LangGraph, CrewAI
Arlington or Mount Laurel or San Diego or Fall River
$90k-$184k/yrHybridFull Time
Innovative Defense Technologies: A defense technology delivering mission-critical software and automated solutions to the U.S. government.
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.
Tight: Embedded accounting infrastructure for fintech and software platforms.
3+ YOE3+ years developing software, front-end experience with modern React toolchain, strong writing and engineering background, and curiosity about AI/LLM workflows.
Austin or Atlanta or Denver or Seattle or Washington
HybridFull Time
CloudflareNYSE: NET: Provides security and performance services for internet properties.
3+ YOE3+ years network/site reliability engineering experience; BA/BS in CS or equivalent; experience with Saltstack, Ansible, Chef, NX-OS/JUNOS/EOS/Cumulus/Sonic; Linux administration; iproute2, Traffic Control, Devlink; software development in Go and Python; AI/LLM tooling experience.
United States or Minneapolis or Eden Prairie or Washington
$146k-$250k/yrRemoteFull Time
UnitedHealth GroupNYSE: UNH: Provides health insurance and technology-enabled health care services.
7+ YOEBachelor's in CS or 4+ years equivalent; 7+ years software engineering; 3+ years with CI/CD, Next.js/React, TypeScript, Node.js, PostgreSQL, and Microsoft Azure; 2+ years integrating AI/LLMs; strong problem solving and mentoring experience.
Aslan: Builds autonomous AI agents for national security and defense.
5+ YOE5+ years software/ML engineering experience; hands-on building agentic AI, fine-tuning open-weight LLMs, production ML systems, and running models on constrained hardware.
Peraton: Provides advanced technology and mission support for government agencies.
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.
NubankNYSE: NU: Digital financial platform offering banking, credit, and investment services.
Proven experience shipping LLM-powered systems in production; strong prompt/context engineering, evaluation and guardrail development, and software engineering skills (Python/TypeScript/Clojure).
Python, TypeScript, Clojure, n8n, Zapier, AWS, Claude Code, Cursor, Copilot, Slack, Google Workspace, Jira, Terraform, RAG, MCP
Edgesource Corporation: Providing mission-ready national security and IT solutions.
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.
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/yrHybridFull Time
Thomson ReutersNASDAQ: TRI: Provides professional software, data, and news services globally.
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.
Core4ce: Provider of data-driven national security and defense technology solutions.
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.
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
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)
CACINYSE: CACI: Provides information technology and professional services to government clients.
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.