CareerPlanSign in

Principal Data Scientist, AI Foundations

New York, NY, US💼 Full-time💰 $158,600–$158,600🗓 2025-09-12 → 2026-09-26

Core

Building and shipping state-of-the-art scalable AI/ML solutions and generative AI features for Capital One's award-winning mobile app to deliver personalized customer experiences.

Role type

Principal Data Scientist (AI Foundations / Generative AI)

Builds

Scalable AI/ML architecture, LLM-based features, and digital assistant capabilities for the Capital One mobile app.

Domain

Financial Services / Generative AI / Large Language Models (LLMs)

Deliverable

production ML models

Required skills

Natural Language Processing (NLP), Large Language Models (LLMs), model training and fine-tuning, training optimization, self-supervised learning, explainability, RLHF, scalable model deployment, engineering mindset for high-volume inference

Preferred skills

AWS experience, Python, Scala, R, SQL

Technologies

PyTorch, AWS Ultraclusters, Hugging Face, LangChain, Lightning, VectorDBs

Responsibilities

Partner with cross-functional teams to deliver AI-powered products; leverage a broad tech stack to reveal insights from huge volumes of data; build ML/NLP models through design, training, evaluation, and validation; operationalize models in scalable production systems serving 80+ million customers; research and evaluate emerging technologies; challenge conventional thinking to improve the status quo.

Seniority

Principal, hands-on IC with leadership and mentorship responsibilities

Sourced via workday · Listed on CareerPlan, which tracks 70,000+ jobs from 20+ sources.