Principal Associate, Data Scientist – LLM Customization Team

Capital One

Data Scientist developing AI-powered financial products at Capital One. Collaborating with cross-functional teams on innovative applications of generative AI technology.

Posted 6/10/2026full-timeNew York City • New York, Virginia • 🇺🇸 United StatesJuniorMid-Level💰 $161,800 - $184,600 per yearWebsite

Tech Stack

Tools & technologies

AWSPythonPyTorchScala

About the role

Key responsibilities & impact

Partner with a cross-functional team of data scientists, applied researchers, software engineers, machine learning engineers and product managers to deliver AI powered products that change how customers interact with their money
Leverage a broad stack of technologies — Pytorch, Hugging Face, AWS Ultraclusters, LangChain, VectorDBs, and more
Be the expert in Natural Language Processing (NLP) to harness the power of Large Language Models (LLMs)
Build NLP models through all phases of development, from design through training, evaluation, and validation

Requirements

What you’ll need

Bachelor's Degree in a quantitative field plus 5 years of experience performing data analytics
Master's Degree in a quantitative field or an MBA with a quantitative concentration plus 3 years of experience performing data analytics
PhD in a quantitative field
At least 1 year of experience working with AWS
At least 3 years’ experience in Python, Scala, or R
At least 3 years’ experience with machine learning
Experience with Large Language Models (LLM), Finetuning, and Deep Learning

Benefits

Comp & perks

Health insurance
401(k) matching
Performance based incentive compensation
Bonuses
Comprehensive, competitive, and inclusive set of health, financial and other benefits that support your total well-being

ATS Keywords

✓ Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

Natural Language ProcessingLarge Language Modelsmachine learningdata analyticsPythonScalaRFinetuningDeep Learningmodel evaluation

Certifications

Bachelor's DegreeMaster's DegreeMBAPhD