Senior AI Engineer - Foundations & LLMs

Capital One; McLean (VA); On-site; USD 230,000 - 262,000; Full time

Job summary

Capital One seeks an AI Engineer 5 to help build and optimize large-scale AI foundations, including LLM customization, reinforcement learning, and finetuning. You will collaborate with engineers, researchers, and PMs to ship responsible AI that enhances customer experiences and banking capabilities.

The role emphasizes scalable AI infrastructure, cost-aware design, and governance, with opportunities to mentor senior engineers and shape long-term AI strategy at Capital One.

Qualifications

• Bachelor’s degree or Master’s with relevant AI/ML experience.
• 6+ years of AI/ML algorithm or technology development.
• Strong programming experience in Python and at least one of Go/Scala/CUDA/Java.

Responsibilities

• Collaborate with cross‑functional teams to deliver AI-powered products.
• Design, develop, test, deploy, and support AI software components.
• Optimize foundation model training, inference, and governance.
• Lead and mentor engineers to raise technical maturity.

Skills

Python

CUDA

Java

Go

AI systems

Education

Bachelor’s degree in CS/AI/Engineering

Master’s degree in CS/AI/Engineering

Tools

PyTorch

HuggingFace

VectorDBs

AWS

Job description

Capital One seeks an AI Engineer 5 to help build and optimize large-scale AI foundations, including LLM customization, reinforcement learning, and finetuning. You will collaborate with engineers, researchers, and PMs to ship responsible AI that enhances customer experiences and banking capabilities.

The role emphasizes scalable AI infrastructure, cost-aware design, and governance, with opportunities to mentor senior engineers and shape long-term AI strategy at Capital One.