Principal AI Scientist, NLP & LLMs at Scale

Capital One; San Jose (CA); On-site; USD 177,000 - 201,000; Full time

Job summary

Capital One is seeking a Data Scientist to join the AI Foundations Specialist Models Data Science team. You will partner with data scientists, software engineers, and product managers to deliver AI-powered products that change how customers interact with their money, using PyTorch, AWS, LangChain, and more to unlock insights across billions of records.

The ideal candidate has advanced degree in a quantitative field and 3+ years in ML/NLP, with hands-on experience in LLMs, open‑source tools, and

Qualifications

• Bachelor's degree in a quantitative field plus 5 years of experience performing data analytics
• Master's degree with quantitative concentration or MBA plus 3 years of experience performing data analytics
• PhD in a quantitative field

Responsibilities

• Partner with a cross‑functional team of data scientists, 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, AWS Ultraclusters, Hugging Face, LangChain, Lightning, VectorDBs, and more — to reveal the insights hidden within huge volumes of numeric and textual data.
• Be the expert in Natural Language Processing (NLP) to harness the power of Large Language Models (LLMs), adapt and finetune them for customer facing applications and features.
• Build machine learning and NLP models through all phases of development, from design through training, evaluation, and validation; partnering with engineering teams to operationalize them in scalable and resilient production systems that serve 80+ million customers.
• Flex your interpersonal skills to translate the complexity of your work into tangible business goals.

Skills

Python

Scala

SQL

Machine learning

NLP

Education

Bachelor's degree in a quantitative field

Master's degree in a quantitative field or MBA with quantitative concentration

PhD in a quantitative field

Tools

AWS

Job description

Capital One is seeking a Data Scientist to join the AI Foundations Specialist Models Data Science team. You will partner with data scientists, software engineers, and product managers to deliver AI-powered products that change how customers interact with their money, using PyTorch, AWS, LangChain, and more to unlock insights across billions of records.

The ideal candidate has advanced degree in a quantitative field and 3+ years in ML/NLP, with hands-on experience in LLMs, open‑source tools, and