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Today

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

Capital One San Jose, CA

San Jose, CA

Today

$215k - $246k/yr Full time Agentic Ai Ai Agent Ai Engineer

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Job Description

Build foundational AI systems that power real-world experiences for associates and customers. Capital One is hiring an AI Engineer 4 on the Intelligent Foundations and Experiences (IFX) team to design, deploy, and improve production AI capabilities including LLM inference and agentic AI. The role emphasizes end-to-end architecture, reliability, and optimization across scalability, cost, latency, and throughput.

What you’ll do

Partner with engineers, research scientists, technical program managers, and product managers to deliver AI-powered products that change how associates work and how customers interact with Capital One.
Design, develop, test, deploy, and support AI software components, including foundation model training, LLM inference, agents and multi-agent workflows, similarity search, guardrails, model evaluation, experimentation, governance, and observability.
Apply and integrate a broad stack of Open Source and SaaS AI technologies, including AWS Ultraclusters, Huggingface, VectorDBs, PyTorch, and more.
Introduce state-of-the-art foundation model optimization techniques to improve production performance, including scalability, cost, latency, and throughput.
Contribute to technical vision and the long-term roadmap for foundational AI systems across Capital One.
Own end-to-end architecture for complex AI systems with an emphasis on 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 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.

Qualifications

Bachelor’s degree in Computer Science, AI, Electrical Engineering, Computer Engineering, or related fields plus at least 4 years developing AI/ML algorithms or technologies, or a Master’s degree plus at least 2 years developing AI/ML algorithms or technologies.
At least 4 years of programming experience with Python, Go, Scala, CUDA, or Java.

Preferred experience

Experience leading development of AI systems with tradeoffs across cost, latency, throughput, and accuracy.
6 years deploying scalable and responsible AI solutions on cloud platforms such as AWS, Google Cloud, Azure, or equivalent private cloud.
Experience designing, developing, delivering, and supporting AI services.
Experience building AI/ML algorithms and services (for example: LLM inference, similarity search and vector databases, guardrails, memory) using Python, C++, C#, Java, CUDA, or Golang.
Experience optimizing training and inference software for improved hardware utilization, latency, throughput, and cost.
Experience developing agentic AI systems and agentic workflows.
Ability to apply new AI research and systems judiciously in production.
Proficiency designing distributed systems for model training, evaluation, and online inference at petabyte scale.
Experience defining AI model governance processes, including producibility, lineage tracking, and automated retaining schedules.
Demonstrated ability to influence architectural decisions across multiple AI product lines or platforms.

Tools and technologies you may work with

AWS Ultraclusters, Huggingface, VectorDBs, PyTorch
Python, Go, Scala, CUDA, Java
AWS, Google Cloud, Azure
C++, C#, Golang

Location and compensation

San Jose, CA (onsite) | USD 215,200 - 245,600 per year. Performance-based incentive compensation may be available, including cash bonus(es) and/or long term incentives (LTI).

Capital One also offers a comprehensive, competitive, and inclusive set of health, financial, and other benefits that support your total well-being.

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