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

Lead AI Engineer (AI Foundations: LLM Customization, Finetuning, Reinforcement Learning)

$197.3k - $225.1k

Capital One

Lead AI Engineer (AI Foundations: LLM Customization, Finetuning, Reinforcement Learning) Overview At Capital One, we are creating responsible and reliable AI systems, changing banking for good. For years, Capital One has been an industry leader in using machine learning to create real-time, personalized customer experiences. Our investments in technology infrastructure and world-class talent — along with our deep experience in machine learning — position us to be at the forefront of enterprises leveraging AI. From informing customers about unusual charges to answering their questions in real time, our applications of AI & ML are bringing humanity and simplicity to banking. We are committed to continuing to build world-class applied science and engineering teams to deliver our industry leading capabilities with breakthrough product experiences and scalable, high-performance AI infrastructure. At Capital One, you will help bring the transformative power of emerging AI capabilities to reimagine how we serve our customers and businesses who have come to love the products and services we build. Team Description: The Intelligent Foundations and Experiences (IFX) team is at the center of bringing our vision for AI at Capital One to life. We work hand-in-hand with our partners across the company to advance the state of the art in science and AI engineering, and we build and deploy proprietary solutions that are central to our business and deliver value to millions of customers. Our AI models and platforms empower teams across Capital One to enhance their products with the transformative power of AI, in responsible and scalable ways for the highest leverage impact. In this role, you will: Partner with a cross-functional team of engineers, research scientists, technical program managers, and product managers to deliver AI-powered products that change how our associates work and how our customers interact with Capital One. Design, develop, test, deploy, and support AI software components including foundation model training, large language model inference, similarity search, guardrails, model evaluation, experimentation, governance, and observability, etc. Leverage a broad stack of Open Source and SaaS AI technologies such as AWS Ultraclusters, Huggingface, VectorDBs, Nemo Guardrails, PyTorch, and more. Invent and introduce state-of-the-art LLM optimization techniques to improve the performance — scalability, cost, latency, throughput — of large scale production AI systems. Contribute to the technical vision and the long term roadmap of foundational AI systems at Capital One. The Ideal Candidate: You love to build systems, take pride in the quality of your work, and also share our passion to do the right thing. You want to work on problems that will help change banking for good. Passion for staying abreast of the latest research, and an ability to intuitively understand scientific publications and judiciously apply novel techniques in production. You adapt quickly and thrive on bringing clarity to big, undefined problems. You love asking questions and digging deep to uncover the root of problems and can articulate your findings concisely with clarity. You have the courage to share new ideas even when they are unproven. You are deeply Technical. You possess a strong foundation in engineering and mathematics, and your expertise in hardware, software, and AI enable you to see and exploit optimization opportunities that others miss. You are a resilient trail blazer who can forge new paths to achieve business goals when the route is unknown. Basic Qualifications: Bachelor's degree in Computer Science, AI, Electrical Engineering, Computer Engineering, or related fields plus at least 4 years of experience developing AI and ML algorithms or technologies, or a Master's degree in Computer Science, AI, Electrical Engineering, Computer Engineering, or related fields plus at least 2 years of experience developing AI and ML algorithms or technologies At least 4 years of experience programming with Python, Go, Scala, or Java Preferred Qualifications: 6 years of experience deploying scalable and responsible AI solutions on cloud platforms (e.g. AWS, Google Cloud, Azure, or equivalent private cloud) Experience designing, developing, delivering, and supporting AI services Experience developing AI and ML algorithms or technologies (e.g. LLM Inference, Similarity Search and VectorDBs, Guardrails, Memory) using Python, C++, C#, Java, or Golang Experience developing and applying state-of-the-art techniques for optimizing training and inference software to improve hardware utilization, latency, throughput, and cost Passion for staying abreast of the latest AI research and AI systems, and judiciously apply novel techniques in production Capital One will consider sponsoring a new qualified applicant for employment authorization for this position. The minimum and maximum full-time annual salaries for this role are listed below, by location. Please note that this salary information is solely for candidates hired to perform work within one of these locations, and refers to the amount Capital One is willing to pay at the time of this posting. Salaries for part-time roles will be prorated based upon the agreed upon number of hours to be regularly worked. Cambridge, MA: $197,300 - $225,100 for Lead AI Engineer McLean, VA: $197,300 - $225,100 for Lead AI Engineer New York, NY: $215,200 - $245,600 for Lead AI Engineer San Francisco, CA: $215,200 - $245,600 for Lead AI Engineer San Jose, CA: $215,200 - $245,600 for Lead AI Engineer Candidates hired to work in other locations will be subject to the pay range associated with that location, and the actual annualized salary amount offered to any candidate at the time of hire will be reflected solely in the candidate’s offer letter. This role is also eligible to earn performance based incentive compensation, which may include cash bonus(es) and/or long term incentives (LTI). Incentives could be discretionary or non discretionary depending on the plan. Capital One offers a comprehensive, competitive, and inclusive set of health, financial and other benefits that support your total well-being. Learn more at the Capital One Careers website ( . Eligibility varies based on full or part-time status, exempt or non-exempt status, and management level. This role is expected to accept applications for a minimum of 5 business days. No agencies please. Capital One is an equal opportunity employer (EOE, including disability/vet) committed to non-discrimination in compliance with applicable federal, state, and local laws. Capital One promotes a drug-free workplace. Capital One will consider for employment qualified applicants with a criminal history in a manner consistent with the requirements of applicable laws regarding criminal background inquiries, including, to the extent applicable, Article 23-A of the New York Correction Law; San Francisco, California Police Code Article 49, Sections 4901-4920; New York City’s Fair Chance Act; Philadelphia’s Fair Criminal Records Screening Act; and other applicable federal, state, and local laws and regulations regarding criminal background inquiries. If you have visited our website in search of information on employment opportunities or to apply for a position, and you require an accommodation, please contact Capital One Recruiting at View phone number on click.appcast.io or via email at View email address on click.appcast.io . All information you provide will be kept confidential and will be used only to the extent required to provide needed reasonable accommodations. For technical support or questions about Capital One's recruiting process, please send an email to View email address on click.appcast.io Capital One does not provide, endorse nor guarantee and is not liable for third-party products, services, educational tools or other information available through this site. Capital One Financial is made up of several different entities. Please note that any position posted in Canada is for Capital One Canada, any position posted in the United Kingdom is for Capital One Europe and any position posted in the Philippines is for Capital One Philippines Service Corp. (COPSSC). Capital One

Vacancy posted 3 days ago
Similar jobs that could be interesting for youBased on the Lead AI Engineer (AI Foundations: LLM Customization, Finetuning, Reinforcement Learning) in Cambridge, MA vacancy
  • $197.3k - $225.1k

     ...Overview Lead AI Engineer (AI Foundations, LLM Customization and Finetuning) Overview At Capital One, we are creating responsible and reliable AI systems...  ...has been an industry leader in using machine learning to create real-time, personalized customer experiences... 
    Foundation
    Full time
    Part time
    Local area

    Capital One

    Cambridge, MA
    a month ago
  • $229.9k - $262.4k

     ...Senior Lead AI Engineer (FM Hosting, LLM Inference) Overview: At Capital One, we are...  ...industry leader in using machine learning to create real-time, personalized customer experiences. Our investments...  ...: The Intelligent Foundations and Experiences (IFX) team is... 
    Foundation
    Full time
    Part time
    Local area

    Capital One National Association

    Cambridge, MA
    1 day ago
  • $197.3k - $225.1k

    Lead AI Engineer (FM Hosting, LLM Inference) Overview At Capital One, we are creating responsible...  ...leader in using machine learning to create real-time, personalized customer experiences. Our investments...  ...: The Intelligent Foundations and Experiences (IFX) team is... 
    Foundation
    Full time
    Part time
    Local area

    Capital One

    Cambridge, MA
    3 days ago
  • $197.3k - $225.1k

    Lead AI Engineer (AI Foundations, LLM Core and Agentic AI) Overview At Capital One, we are creating responsible and reliable AI...  ...has been an industry leader in using machine learning to create real-time, personalized customer experiences. Our investments in technology infrastructure... 
    Foundation
    Full time
    Part time
    Local area

    Capital One

    Cambridge, MA
    5 days ago
  • $172k - $225.7k

     ...Lead AI Engineer MassMutual's AI & Data Science team is...  ...AI, agentic AI, and LLM-based systems by applying...  ...a culture of peer learning, candid feedback, and...  ...benchmarking across foundation models, and quantitative...  ...making sure our customers are our top priority.... 
    Foundation

    Massachusetts Mutual Life Insurance Company

    Boston, MA
    5 days ago
  • $180k - $280k

     ...provide exceptional customized service with an...  ...is to be the leading telecommunications...  ..., The ALS Foundation and the Alzheimer...  ...experienced Lead AI Engineer to join our dynamic...  ...and applying reinforcement learning strategies to optimize...  ...expertise with LLM fine-tuning (e.g... 
    Foundation

    Granite Telecommunications

    Quincy, MA
    2 days ago
  • $197.3k - $225.1k

    Lead AI Engineer At Capital One, we are creating responsible...  ...leader in using machine learning to create real-time, personalized customer experiences. Our...  ...Description: The Intelligent Foundations and Experiences (IFX) team...  ...state-of-the-art LLM optimization techniques... 
    Foundation
    Full time
    Part time
    Local area

    Capital One

    Cambridge, MA
    4 days ago
  • $229.9k - $262.4k

    Senior Lead AI Engineer (GenAI Platform, Agentic Infrastructure...  ...leader in using machine learning to create real-time, personalized customer experiences. Our...  ...Description: The Intelligent Foundations and Experiences (IFX)...  ...state-of-the-art LLM optimization techniques... 
    Foundation
    Full time
    Part time
    Local area

    Capital One

    Cambridge, MA
    2 days ago
  • $225.4k - $280.6k

     ...Computer Science, AI, Electrical Engineering, Computer...  ...Proven ability to lead and mentor an engineering...  ...workflows and customer interactions Design...  ..., including foundation model training and...  ...implement cutting-edge LLM optimization...  ...LLM Machine Learning PyTorch Python... 
    Foundation
    Full time

    Capital One

    Cambridge, MA
    18 days ago
  • $197.3k - $225.1k

    Lead Machine Learning Engineer At Capital One, we are changing banking for good by...  ...responsible and reliable AI-powered systems. Our investments...  ...AI. From informing customers about unusual charges to answering...  ...Risk Tech, we provide the foundation for Capital One to thrive... 
    Foundation
    Full time
    Part time
    Internship
    H1b
    Local area
    Flexible hours

    Capital One Financial Corp

    Cambridge, MA
    4 days ago
  • $197.3k - $225.1k

     ...Lead Machine Learning Engineer (Manager IC) At Capital One, we are changing banking...  ...responsible and reliable AI‑powered systems. Our...  ...leveraging AI. From informing customers about unusual charges to answering...  ...machine learning and foundation models. Collaborate as... 
    Foundation
    Internship
    Local area
    Flexible hours

    Capital One

    Cambridge, MA
    23 hours ago
  •  ...Senior AI Engineer Location: Nashville (preferred...  ...we partner with leading consulting firms...  ...existing foundations ~ Proactively...  ...Product to translate customer and business needs...  ...articles, research, or learnings with the team...  ...experience with LLM frameworks and... 
    Foundation
    Full time

    Synquery

    Boston, MA
    1 day ago
  • $187.5k - $237.5k

     ...Lead AI Engineer Founded in 2012, Mirakl has been at the forefront of marketplace innovation...  ...: Teamwork and collaboration are the foundation of our success Get Things Done: We...  ...Expertise: Knowledge sharing and continuous learning are core to our culture Satisfy &... 
    Foundation
    Permanent employment
    Work at office
    Worldwide

    Venturefizz Product Management Community

    Boston, MA
    1 day ago
  •  ...a Senior Principal AI Engineer to provide hands-on...  ...AI systems including LLM orchestration,...  ...reasoning systems Lead the design of multi-...  ...production Optimize for learning velocity and customer impact, not...  ...experiment. It is the foundation of how we design, build... 
    Foundation
    Full time
    Flexible hours

    Unusual Ventures

    Boston, MA
    1 day ago
  • Lead Artificial Intelligence And Decision Engineer At MITRE, your passion fuels...  ...the future. Our AI-enhanced...  ...talent in machine learning (including deep...  ...learning and reinforcement learning), and...  ...language models (LLM), generative...  ...been used by customers or stakeholders... 
    Work experience placement
    Local area
    3 days per week

    MITRE

    Bedford, MA
    3 days ago
  • $128.3k - $176.4k

     ...Senior Software Engineer codes software...  ...The Senior AI Software Engineer...  ...Build and maintain LLM-powered...  ...PyTorch, scikit-learn, or similar) ~...  ...Experience building custom LLM and agent evals...  ...evaluating foundation models Familiarity...  ...: HUM) is a leading U.S. healthcare... 
    Foundation
    Full time
    Temporary work
    Apprenticeship
    Work at office
    Remote work
    Work from home
    Home office

    Humana

    Boston, MA
    1 day ago
  • $187.5k - $237.5k

    Lead AI Engineer Founded in 2012, Mirakl has been at the forefront of marketplace innovation,...  ...Together: Teamwork and collaboration are the foundation of our success Get Things Done: We...  ...: Knowledge sharing and continuous learning are core to our culture Satisfy & Empower... 
    Foundation
    Permanent employment
    Work at office
    Worldwide

    Venturefizz Product Management Community

    Boston, MA
    3 days ago
  • $180k - $230k

     ...Raft ( is a customer-obsessed non-traditional...  ...cutting-edge AI/ML and data...  ...operators and engineers to rapidly build...  ...an experienced Lead AI/ML Software...  ...strong engineering foundations and reusable...  ...deploying machine learning models in...  ...patterns, and LLM integration in... 
    Foundation
    Live in
    Remote work

    Raft

    Boston, MA
    2 days ago
  • $225.4k - $280.6k

     ...Computer Science, AI, Electrical Engineering, Computer...  ...Proven ability to lead and mentor an engineering...  ...(e.g., LLM Inference, Similarity...  ...associates work and customer interactions with...  ...components, including foundation model training,...  ...LLM Machine Learning PyTorch Python... 
    Foundation
    Full time

    Capital One

    Cambridge, MA
    18 days ago
  •  ...most widely used AI assistants, powered...  ...data and metrics foundation for evaluating speech...  ...before it reaches customers. Minimum...  ...Science, Electrical Engineering, or a related field...  ...datasets for machine learning evaluation or training...  ...automated (LLM-as-judge) and human... 
    Foundation

    Apple

    Cambridge, MA
    5 days ago
  •  ...part of a team of engineers helping...  ...dark web, using AI agents, machine learning, and human analyst...  ...matters.   As a Lead Software Engineer...  ...are serving customers.  You will be laying...  ...building LLM agents and tooling...  ...teams and builds a foundation for future... 
    Foundation
    Immediate start

    Overwatch

    Boston, MA
    2 days ago
  • $202.8k - $238.6k

     ...Description Job Description AI Technical Lead Location:...  ...of agents to maximize customer acquisition across digital...  ...and our AI traffic engine, EverQuote is...  ...experience in the AI and LLM space. You work on this...  ...hands-on work in machine learning or LLMs. ~ A track record... 
    Full time
    Work at office
    3 days per week

    EverQuote

    Boston, MA
    3 days ago
  • $269.1k - $307.2k

     ...Distinguished AI Engineer - Agentic AI Platform...  ...in using machine learning to create real-time, personalized customer experiences. Our investments...  ...our industry leading capabilities with...  ...The Intelligent Foundations and Experiences (IFX...  ...(e.g. LLM Inference, Similarity... 
    Foundation
    Full time
    Part time
    Work at office
    Remote work

    Capital One

    Cambridge, MA
    1 day ago
  • $336k - $375k

     ...procurement teams with automation, AI, and GenAI so they can...  ...co-founders and early customers Partner with forward...  ...Help define the technical foundation, stack decisions, and engineering culture for a scaling team...  ...experience building and deploying LLM powered applications or... 
    Foundation
    Full time
    Remote work

    Fairmarkit

    Boston, MA
    1 day ago
  •  ...Role We're hiring a Senior AI Engineer to join the team here in...  ...technologies and tooling that help our customers run their small businesses...  ...mentality and a love of learning Low ego, high energy...  ...to scale, with the financial foundation, product-market fit, and... 
    Foundation
    Local area

    Topline Pro

    Boston, MA
    4 days ago
  •  ...fundamental challenges in AI and Robotics,...  ...lives. Our software engineers bring the depth and rigor...  ...Institute, where a solid foundation of engineering is...  ...Software Engineers to help lead the way.\n...  ...Basic understanding of Reinforcement Learning (RL) and its applications... 
    Foundation
    Full time
    Work at office
    Local area

    The Ai Institute

    Cambridge, MA
    1 day ago
  •  ...Senior AI Engineer 7AI is the foundational AI security company. Founded in 2024 by Cybereason co-founders Lior...  ..., delivering real outcomes for the customers who trust us to defend them....  ...investigation is only as good as the LLM system underneath it. Get the retrieval... 
    Foundation

    Seven AI

    Boston, MA
    2 days ago
  •  ...About 7AI 7AI is the foundational AI security company. Founded in 2...  ...delivering real outcomes for the customers who trust us to defend them....  ...is only as good as the LLM system underneath it. Get the...  ...customer's data. As a Senior AI Engineer, you'll build the LLM-... 
    Foundation

    SevenAI

    Boston, MA
    3 days ago
  • $126.07k - $196.98k

     ...to develop market-leading products with the...  ...performance computing and AI, climate friendly...  ...a Senior AI Engineer to join our...  ...with a continuous learning mindset. ?Role will...  ...Python), and deploying custom and complex GenAI...  ...operating with a solid foundation of trust. At... 
    Foundation
    Full time
    Work at office
    Local area
    Remote work

    Chemours

    Boston, MA
    1 day ago
  •  ...the Scientific Data and AI Company building Tetra...  .... We help the world’s leading life sciences firms...  ...development, including ML‑reinforcement learning with large continuous...  ...and developing LLM agent harnesses, governance...  ...engage directly with customers onsite up to 4-5 days... 
    Immediate start
    Visa sponsorship

    TetraScience

    Cambridge, MA
    1 day ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Lead AI Engineer (AI Foundations: LLM Customization, Finetuning, Reinforcement Learning). Be the first to apply!