---
title: "AI Engineer 5 (AI… at Capital One – New York, NY +4"
canonical: "https://www.metaintro.com/job/ai-engineer-5-ai-foundations-llm-customization-finetuning-e128017e-1d4d-5d5e-b959-c3386de9dd31"
language: "en"
author: "Metaintro"
---

[![Capital One logo](/api/favicon-proxy?url=https%3A%2F%2Fwww.google.com%2Fs2%2Ffavicons%3Fdomain%3Dcapitalonecareers.com%26sz%3D128)](/company/capital-one-8dfd13f4)[Capital One](/company/capital-one-8dfd13f4)
# AI Engineer 5 (AI Foundations: LLM Customization, Finetuning, Reinforcement Learning) at Capital One

Compensation

$229,900 – $262,400/yr

**Location**
: New York, New York · San Francisco, California · +3

**Type**
: Full-time

**Level**
: senior

**Posted**
: Sep 18, 2026

## Description

Capital One is hiring an AI Engineer 5 to design, develop, test, deploy, and support production AI systems focused on large language models, foundation-model training and inference, agents, multi-agent workflows, similarity search, guardrails, model evaluation, and observability. The role involves optimizing model performance, cost, latency, throughput, and GPU utilization; leading technical design councils; mentoring senior engineers; and contributing to the long-term roadmap of foundational AI systems. Candidates need a relevant bachelor's or master's degree plus 4–6 years of AI/ML development experience and at least 6 years of experience programming with Python, Go, Scala, CUDA, or Java. The position is available for application for at least five business days and offers full-time annual salaries of $229,900–$262,400 in Cambridge, Massachusetts and McLean, Virginia, and $250,800–$286,200 in New York, San Francisco, and San Jose, California.

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