Principal Associate, Data Science – AI Foundations

Capital One

Data Scientist at Capital One developing AI powered products through cutting-edge research and development in Generative AI. Collaborating with cross-functional teams to enhance conversational AI capabilities.

Posted 4/18/2026full-timeMcLean • California, New York, Virginia • 🇺🇸 United StatesJuniorMid-Level💰 $161,800 - $201,400 per yearWebsite

Tech Stack

Tools & technologies

AWSPySparkPythonScalaSQL

About the role

Key responsibilities & impact

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 developers write software.
Lead cutting-edge research and development in Generative AI (GenAI) to enhance conversational AI capabilities and build scalable, futuristic digital assistant solutions.
Fine-tune advanced Large Language Models (LLMs) for domain-specific conversational applications, inference optimization, and multi-agentic workflows.
Leverage a broad stack of technologies — Python, AWS, Pyspark, LangChain, LangGraph, HuggingFace Transformers, vLLM and VectorDBs, and more.
Be the expert in Natural Language Processing (NLP) to harness the power of Large Language Models (LLMs), adapt and finetune them for business specific applications and features.
Drive innovation by designing, training, evaluating, and deploying state-of-the-art NLP models, partnering with engineering teams to integrate them into scalable and resilient production systems.
Translate complex AI/ML research into tangible business outcomes, improving customer experience through real-time, intelligent digital assistance.

Requirements

What you’ll need

Currently has, or is in the process of obtaining a Bachelor's Degree in a quantitative field plus 5 years of experience performing data analytics
A Master's Degree in a quantitative field or an MBA with a quantitative concentration plus 3 years of experience performing data analytics
A 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
At least 3 years’ experience with SQL

Benefits

Comp & perks

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

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

PythonAWSPysparkLangChainLangGraphHuggingFace TransformersvLLMVectorDBsNatural Language ProcessingMachine Learning

Soft Skills

collaborationleadershipinnovationcommunicationproblem-solving

Certifications

Bachelor's DegreeMaster's DegreePhD