AI-Driven Data Scientist — Digital Twins & Customer Behavior

Vanguard; Dallas (TX); Hybrid; USD 150,000 - 210,000; Full time

Job summary

Vanguard seeks a senior data scientist to lead the design, validation, and continuous improvement of its AI-powered human simulation capability. You will build Digital Twins of customer behavior, develop persona models, and design evaluation frameworks to predict responses and optimize marketing strategies.

You'll partner with Product, UX Research, Analytics, Marketing, and Tech teams to scale this self-service capability, improve fidelity and trust, and drive measurable business impact across

Qualifications

• Minimum five years of experience in Data Science, Analytics, Machine Learning, Marketing Analytics, or a related quantitative field.
• Demonstrated strength in analytics, marketing, UX research, survey analysis, experimentation, or behavioral science.
• Applied AI / Data Science: Experience building solutions using LLMs, agentic systems, prompt engineering, and RAG architectures.
• Strong programming skills in Python and SQL, with solid foundation in statistics, ML, and experimental design.
• Experience developing AI systems that model or simulate human behavior.
• Advanced degree in Data Science, Statistics, Applied Mathematics, Economics, CS, Behavioral Science, or related field.

Responsibilities

• Build and enhance AI-powered Digital Twins that simulate customer behavior and decisions.
• Lead analytics initiatives to improve simulation fidelity and predictive accuracy through experimentation.
• Apply behavioral science and UX insights to refine human-centered AI models.
• Develop AI solutions including data prep, evaluation frameworks, prompt engineering, and model performance.
• Partner with cross-functional teams to translate problems into scalable AI/data science solutions and mentor junior staff.

Skills

Data science

ML/AI

Python

SQL

Experiment design

Communication

Behavioral science

Education

PhD/MS in a related field

Tools

LLMs

RAG

Prompt engineering

Model evaluation

Job description

Vanguard seeks a senior data scientist to lead the design, validation, and continuous improvement of its AI-powered human simulation capability. You will build Digital Twins of customer behavior, develop persona models, and design evaluation frameworks to predict responses and optimize marketing strategies.

You'll partner with Product, UX Research, Analytics, Marketing, and Tech teams to scale this self-service capability, improve fidelity and trust, and drive measurable business impact across