As a Director, Data Science – Personalization, you will lead the strategy and development of Walmart International’s advanced AI-powered personalization systems, focusing on recommendation engines, relevance models, and conversational AI. You will oversee a team of data scientists and engineers to design scalable platforms using LLMs, embeddings, RAG, and agentic AI frameworks, ensuring they adhere to principles of fairness and transparency while delivering measurable business outcomes across multiple international markets. This role requires 12+ years of experience in data science and machine learning, with expertise in cloud-based ML platforms like GCP, Python, PyTorch/TensorFlow, and large-scale data processing tools such as Spark and BigQuery. You will also champion responsible AI practices and collaborate closely with product, engineering, and business leaders to drive impactful personalization solutions globally.
Skills
LLMs
RAG
Python
PyTorch
TensorFlow
Spark
BigQuery
GCP
MLOps
A/B testing
reinforcement learning
contextual bandits
agentic AI systems
multi-agent architectures
conversational AI
What you'll do
Define and execute a long-term strategy for AI-driven personalization, aligning with business goals.
Design and scale advanced recommendation engines using LLMs, embeddings, and agentic AI frameworks.
Build scalable AI platforms on modern cloud technologies to support global operations.
Establish frameworks for A/B testing and uplift modeling to measure the impact of personalization efforts.
Ensure responsible AI practices by implementing fairness, transparency, and compliance in systems.
Mentor and develop a team of data scientists and engineers to foster innovation and technical excellence.
What we're looking for
12+ years of experience in data science and machine learning, including leadership roles.
Proven success building and scaling personalization or recommendation systems in large-scale environments.
Deep expertise in Generative AI (LLMs, RAG, embeddings) and modern ML techniques like reinforcement learning.
Strong experience with cloud-based ML platforms (preferably GCP), distributed data systems, and MLOps practices.
Hands-on proficiency in Python, PyTorch/TensorFlow, and large-scale data processing tools.
Market check
Salary context
This
$169,000–$338,000
range sits above
93%
of similar postings on FindRole.
Peer median band
$110,000–$220,000
Median floor and ceiling across peers.
Typical midpoint (25–75%)
$135,000–$199,800
Middle half of comparable postings.
Based on 240 comparable postings.*
* 240 is the maximum number of comparable postings sampled.
Employer
About Walmart
Walmart Inc. is the world''s largest retailer by revenue, operating a chain of hypermarkets, discount department stores, and grocery stores, as well as a growing e-commerce presence through Walmart.com. Industry: General Merchandise & Grocery Retail
Walmart currently has
495 open roles
on FindRole.
Listed pay typically runs
$117,000–$234,000
across 487 roles with salary data.
(Usa) Sunnyvale V - 640 W California Ca Sunnyvale Home Office, US56 days ago
$169,000–$338,000
Python
SQL
R
Apache Spark
Hadoop
Machine Learning
Mathematical Optimization
Agentic AI
Applied AI
Data Science
Model Governance
Ethical AI
CI/CD
Cloud Services
Docker