Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Senior AI Engineer - LLMs, Fine-Tuning & RL

Capital One National Association

Capital One is seeking an AI Engineer 5 to join the Intelligent Foundations and Experiences team in McLean, VA. The role focuses on AI foundations, LLM customization, fine-tuning, and reinforcement learning, including modeling, governance, and multi-model orchestration. You will mentor senior engineers and collaborate across product, research, and engineering to deliver scalable AI systems, optimize performance, and manage cost. #J-18808-Ljbffr Capital One National Association

Vacancy posted 6 days ago
Similar jobs that could be interesting for youBased on the Senior AI Engineer - LLMs, Fine-Tuning & RL in Mc Lean, VA vacancy
  •  ...Rohirrim, we're building the AI that powers how the...  ...self-driven Agentic AI Engineer to join our core engineering...  ...integrate appropriate LLMs (commercial and open-...  ...frontier model providers and tuning prompts for structured...  .... Experience with fine-tuning or instruction-tuning... 
    Senior
    Work at office
    3 days per week

    Rohirrim

    McLean, VA
    1 day ago
  •  ...and citizen services. We’re a nonprofit engineering, applied research, and advanced technology...  ....Department Summary:MITRE’s Multi-INT AI Engineering Department effectively combines...  ...and work experience.Hands-on experience fine-tuning, deploying, and evaluating large... 
    Senior
    Work experience placement
    Internship
    Local area
    Remote work

    Mitre

    McLean, VA
    2 days ago
  • $110.7k - $372.9k

    Position Summary Senior Agentic AI Engineer — Healthcare AI Three hundred fifty million Americans rely on a healthcare system whose decision...  ...— through evaluation-driven feedback and, where it helps, fine-tuned or reasoning-optimized models. • Translate ambiguous, high... 
    Senior
    Local area
    Visa sponsorship

    Deloitte

    McLean, VA
    2 days ago
  • $122k - $240.5k

    Position Summary Join our AI & Engineering team in transforming technology platforms, driving...  ...with LLM prompt engineering, fine-tuning, and RAG (Retrieval Augmented Generation...  ...development From entry-level employees to senior leaders, we believe there’s always room... 
    Senior
    Local area
    Visa sponsorship

    Deloitte

    McLean, VA
    2 days ago
  •  ...Senior AI Engineer Washington D.C. / New York About The Role We are seeking a highly motivated...  ...in GenAI/Large Language Models (LLMs) to advance our use of structured and unstructured...  ...'s expert on GenAI/LLMs, adapting and fine-tuning models and ensuring explainability and... 
    Senior
    Flexible hours

    VantageScore®

    Washington DC
    6 days ago
  • $55.2k - $126k

     ...AI and ML Engineer The Opportunity: As a programmer, you know that machine learning (ML...  ...team, you'll build agentic systems, fine tune models, build RL environments, and make AI a reality...  ...Have: Experience working with LLMs, generative AI systems, or agentic frameworks... 
    Full time
    Contract work
    Part time
    Work at office
    Local area
    Remote work

    Booz Allen Hamilton

    McLean, VA
    2 days ago
  •  ...management consulting firm is seeking a Senior AI Software Engineer to join its expanding Artificial...  ...system behavior, conduct deep performance tuning, and implement industry-standard...  ...building generative AI software, integrating LLMs, configuring complex tool/function... 
    Senior
    Full time

    Smart Synergies

    McLean, VA
    1 day ago
  • $71.5k - $190k

     ...AI Engineering And Delivery Lead Systems Planning and Analysis, Inc. (SPA) delivers high-...  ...models (e.g., SLMs such as Phi, frontier LLMs, embedding and multimodal models)....  ...NIST AI 600-1) Experience with model fine-tuning, distillation, or quantization for deploying... 
    Senior
    Contract work
    Work at office
    Local area
    Remote work

    Systems Planning and Analysis, Inc

    Washington DC
    4 days ago
  • $150k

     ...scrolling down now. Our AI, cloud, cyber, and modernization...  ...need for a highly skilled Senior Google AI Engineer. We are growing our...  ...private service access, CMEK, fine-grained IAM, artifact signing...  ...Practical experience with LLMs/GenAI (e.g., Gemini), vector... 
    Senior
    Temporary work
    Immediate start
    Worldwide

    Credence

    West Mclean, VA
    15 hours ago
  • $191k - $253k

     ...Senior AI Infrastructure Engineer Anduril Industries is a defense technology company with a mission...  ...complex AI models (including LLMs, computer vision, and RL agents) across cloud environments...  ...automated profiling, and hyperparameter tuning. Implement and scale robust... 
    Senior

    anduril

    Washington DC
    3 days ago
  • $50 per hour

     ...OverviewThe Rotary Mission Systems (RMS) AI Hub team, within Lockheed Martin's...  ...driven solution architectures.Build, fine-tune, and integrate LLMs and complementary AI models into new...  ...Description For A/AI Machine Learning Engineering SeniorResponsible for developing,... 
    Senior
    Full time
    Temporary work
    Work experience placement
    Casual work
    Flexible hours

    Lockheed Martin

    Bethesda, MD
    2 days ago
  • $106.9k - $176.5k

     ...Technology Consulting - AI & Data - GenAI Developer - Senior ConsultantFrom strategy to...  ...models, working with AI/ML engineers, developing web...  ..., Anthropic, open-source LLMs) into web-based productsExperience...  ...applications (APIs or fine-tuned models)Experience deploying... 
    Senior
    For contractors
    Summer holiday
    Work at office
    Local area
    Flexible hours

    EY (Ernst & Young)

    McLean, VA
    3 days ago
  •  ...Senior AI/ML Engineer Location: Herndon, VA (Hybrid Work) Preferred: US Citizenship Node.Digital is an innovative...  ...with generative AI models and frameworks (LLMs, RAG architectures, prompt engineering, model fine-tuning) Hands-on exp with OCR, ICR and OMR... 
    Senior
    Remote work

    TruVoice from Corporate Visions (Formerly Primary Intelligen...

    Herndon, VA
    4 days ago
  • TIAG is now hiring a full-stack Senior AI/ML Software Engineer to join our team in support of an exciting Department of War...  ...: Demonstrated experience consuming, fine-tuning, or orchestrating Large Language Models (LLMs) within enterprise applications.AWS Bedrock (... 
    Senior
    For contractors
    For subcontractor
    Local area
    Immediate start

    Tiag

    Reston, VA
    2 days ago
  •  ...line needs and what is delivered. Our AI-native platform, Air Enterprise Readiness...  ...We are seeking an experienced Senior AI Engineer to join our Agentic AI team as we scale...  ...distributed agent execution. Experience with fine-tuning, post-training, reinforcement learning,... 
    Senior
    Full time
    Work at office
    Remote work

    Air

    Arlington, VA
    a month ago
  •  ...thrive. The Risk Tech engineering organization is committed...  .... We are seeking a Senior Software Engineer to contribute...  ...pain points with AI automation solutions Deliver...  ...using multimodal LLMs, RAG pipelines, agentic...  ...evals,agent tracing tools, fine-tuning LLMs, optimizing RAG... 
    Senior
    Hourly pay
    Work experience placement

    Lyft

    Washington DC
    a month ago
  • $150k - $190k

     ...Science, Data Science, Engineering, Mathematics, or a related...  ...degree or PhD in AI/ML, Data Science, Computer...  ...Practical experience with LLMs and generative AI,...  ...service access, CMEK, fine-grained IAM, artifact signing...  ...: We are hiring a Senior Google AI Engineer to... 
    Senior
    Full time

    Credence

    McLean, VA
    5 days ago
  • $150k - $220k

     ...seeking a highly skilled Senior Software Eng ineer,  AI to design, build, and deploy...  ...This role blends software engineering excellence with applied...  ...~ Experience integrating LLMs with external tools, APIs,...  ...prompt engineering, model fine-tuning, or RLHF-style evaluation... 
    Senior
    Full time
    Flexible hours
    Washington DC
    16 days ago
  • $146k - $234k

     ...Senior AI Platform Engineer Job Locations US-OK-Tinker Air Force Base | US-AL-Montgomery...  ...configure, and operate large language models (LLMs), and integrate approved frontier AI...  ...of inference and performance tuning Hands-on experience deploying and administering... 
    Senior
    Contract work
    Remote work
    Flexible hours
    Shift work

    Peraton

    Arlington, VA
    4 days ago
  • $128.4k - $192.5k

     ...Infrastructure - Technology Consulting - AI & Data - AI Automation Engineer - Senior ConsultantFrom strategy to execution...  ...and failure handling.· Select and tune models, embedding strategies,...  ...models (openAI, Anthropic, open-source LLMs) into web-based products· Experience... 
    Senior
    For contractors
    Summer holiday
    Work at office
    Local area
    Immediate start
    Flexible hours

    EY (Ernst & Young)

    McLean, VA
    4 days ago
  •  ...Model Optimization & Deployment Engineer, you will focus on bringing...  ...and deploying complex models (LLMs, VLMs, or FMs) for power- and...  ...frameworks, and parameter-efficient fine-tuning (LoRA, QLoRA). Architect...  ...maximize memory bandwidth on AI accelerators. Write production... 
    Senior
    Temporary work
    Relocation package

    Zoox

    Washington DC
    a month ago
  • $112.8k - $257k

    Agentic AI EngineerThe Opportunity:AI is moving fast and the most...  ...operations. As an Agentic AI Engineer, you'll be at the front edge...  ...accuracy and context retention.Fine-tune Small Language Models (SLMs) for...  ...fine-tuning LLMs or SLMsKnowledge of modern software... 
    Full time
    Contract work
    Part time
    Work at office
    Local area
    Remote work

    Booz Allen Hamilton

    McLean, VA
    2 days ago
  • $112.8k - $257k

     ...Agentic AI Engineer The Opportunity: AI is moving fast and the most consequential work is...  ...reasoning accuracy and context retention. Fine-tune Small Language Models (SLMs) for...  ...LLM providers ~ Experience fine-tuning LLMs or SLMs ~ Knowledge of modern software... 
    Full time
    Contract work
    Part time
    Work at office
    Local area
    Remote work

    Booz Allen Hamilton

    McLean, VA
    5 days ago
  • $113.4k - $223.2k

    Senior AI/ML Engineer (Full Stack) — Emerging Technologies Practice Position Description CGI...  ...TensorFlow, PyTorch; model training, tuning, serving, and monitoring. o Generative AI: hands on with LLMs; prompt engineering; fine tuning; RAG patterns; vector... 
    Senior
    Work at office
    Local area
    Fairfax, VA
    4 days ago
  •  ...AI Engineer Location: McLean, VA Job Type: Full-Time Experience: 5+ Years Job Summary...  ...experience with Python, Machine Learning, LLMs, RAG, AI/ML frameworks, cloud platforms,...  ...prompt engineering, model evaluation, fine-tuning, and inference optimization techniques.... 
    Full time

    AceStack LLC

    McLean, VA
    2 days ago
  •  ...AI Engineer Description: • Build and enhance machine learning models through all phases...  ...A.I. framework and Large Language Models (LLMs). • Experience and/or willing to research, develop, implement, and fine-tuning LLMs in terms of specific domains knowledge... 

    3B Staffing LLC

    Vienna, VA
    5 days ago
  • $140.25k - $189.75k

     ...Job Family: Data Science and Data Engineering Job Qualifications: Skills: Large Language Model (LLM) Fine-Tuning, Large Language Models (LLMs), Machine Learning Algorithms, Machine...  ...Description: GDIT is growing our AI Center of Excellence, and we are seeking... 
    Full time
    Temporary work
    Part time
    Immediate start
    Remote work
    Work from home
    Worldwide
    Flexible hours

    GDIT

    Falls Church, VA
    27 days ago
  • $150k - $275k

     ...accomplishing hard things, together.Lead AI Security Engineer (Agentic SOC)Location: McLean/Tysons,...  ..., and addressing the OWASP Top 10 for LLMs .REQUIRED QUALIFICATIONS4+ years of...  ...using Kubernetes/EKS/AKS)Understanding of fine-tuning methodologies (LoRA, QLoRA) for... 
    Work experience placement
    Local area
    Flexible hours

    Appian

    McLean, VA
    4 days ago
  •  ...Job Title : Senior AI Engineer - Subject Matter Expert III Location: Tysons Corner, VA (Remote) Employment Type: Full-Time Job Summary...  ...Support model evaluation, monitoring, and performance tuning Provide technical leadership and guidance on AI best practices... 
    Senior
    Full time
    Remote work

    Sky Solutions

    Tysons Corner, VA
    3 days ago
  •  ...partner closely with product and engineering to translate real operational needs into high-performing AI features, operating across...  ...specialized AI use cases. Fine-tune language models (small specialized...  ...and testing procedures for LLMs and agents. You have experience... 
    Full time
    Contract work
    Flexible hours

    Twenty Inc.

    Arlington, VA
    4 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Senior AI Engineer - LLMs, Fine-Tuning & RL. Be the first to apply!