AI Engineer 4 (AI Foundations, LLM Core and Agentic AI) at Capital One | CA, US | Rezi

AI Engineer 4 (AI Foundations, LLM Core and Agentic AI) at Capital One

AI Engineer 4 (AI Foundations, LLM Core and Agentic AI)

Capital One · CA, US

Today

AI Engineer 4 (AI Foundations, LLM Core and Agentic AI)

Capital One · CA, US

a day ago
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About the Role

At Capital One, we are creating responsible and reliable AI systems to change banking for good. We are committed to building world-class applied science and engineering teams to deliver breakthrough product experiences and scalable, high-performance AI infrastructure. You will help bring the transformative power of emerging AI capabilities to reimagine how we serve our customers and businesses.

Responsibilities

  • Partner with a cross-functional team of engineers, research scientists, technical program managers, and product managers to deliver AI-powered products.
  • Design, develop, test, deploy, and support AI software components including foundation model training, large language model inference, agents and multi-agent workflows, similarity search, guardrails, model evaluation, experimentation, governance, and observability.
  • Leverage a broad stack of Open Source and SaaS AI technologies such as AWS Ultraclusters, Huggingface, VectorDBs, PyTorch, and more.
  • Invent and introduce state-of-the-art foundation model 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.
  • Own the end-to-end architecture for complex AI systems - ensuring maintainability, observability, and ethical alignment.
  • Define and maintain service-level objectives (SLOs) for AI reliability, including latency, uptime, and model performance drift.
  • Collaborate with infrastructure engineering to optimize GPU/TPU utilization and accelerate model inference pipelines.
  • Lead cross-functional technical reviews for new AI system deployments, ensuring security, data governance, and compliance standards are met.
  • Mentor Principal and Senior Associates on scalable design, performance tuning and research-to-production translation.

Requirements

  • 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, CUDA, or Java.

Skills

  • AI
  • ML
  • Foundation model training
  • Large language model inference
  • Agents and multi-agent workflows
  • Similarity search
  • Guardrails
  • Model evaluation
  • Experimentation
  • Governance
  • Observability
  • AWS Ultraclusters
  • Huggingface
  • VectorDBs
  • PyTorch
  • Python
  • Go
  • Scala
  • CUDA
  • Java
  • C++
  • C#
  • Golang
  • Distributed systems
  • Model training
  • Online inference
  • AI model governance
  • Producibility
  • Lineage tracking
  • Automated retaining schedules

Location

  • Cambridge, MA
  • McLean, VA
  • New York, NY
  • San Francisco, CA
  • San Jose, CA

Work Type

  • Full-time

Experience Level

  • AI Engineer 4
  • At least 4 years of experience
  • At least 2 years of experience
  • 6 years of experience

Education Level

  • Bachelor's degree in Computer Science, AI, Electrical Engineering, Computer Engineering, or related fields
  • Master's degree in Computer Science, AI, Electrical Engineering, Computer Engineering, or related fields

Salary/Compensations

  • $197,300 - $225,100
  • $215,200 - $245,600

Benefits

  • Comprehensive, competitive, and inclusive set of health, financial and other benefits that support your total well-being.

About the Company

  • 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.

Equal Opportunity

  • 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.