Senior Director, Data Science & Ontology

Walmart

Actively hiring
Bentonville, AR Posted 10 days ago $160,000–$320,000 / year
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At a glance

AI generated

TL;DR

The Senior Director of Data Science & Ontology at Walmart will lead the strategic direction for semantic intelligence, integrating data science, ontology, taxonomy, knowledge graphs, and machine learning to enhance data connectivity and trust. This role involves setting a multi-year vision for ontology-driven data products, leading high-performing teams, and collaborating with various stakeholders to deliver measurable business impact. The ideal candidate has extensive experience in data science, AI, and ontology engineering, along with strong leadership skills to build and scale world-class teams. Key responsibilities include developing scalable semantic systems, ensuring data quality and governance, and driving innovation through emerging technologies like generative AI and knowledge graphs. This position requires expertise in Python, SQL, cloud platforms, and MLOps tools, as well as a deep understanding of retail and e-commerce challenges.

Skills

Python SQL Spark MLOps Kubernetes AWS Azure Google Cloud Platform RDF OWL SHACL SPARQL Graph Databases NLP LLMs RAG Embeddings Knowledge Graphs CI/CD Responsible AI Data Governance Ontology Design Taxonomy Governance

What you'll do

  • Define and execute multi-year strategy for ontology-driven data products and AI capabilities.
  • Lead development of scalable semantic systems connecting structured and unstructured data across complex domains.
  • Establish standards for ontology design, taxonomy governance, metadata quality, and responsible AI practices.
  • Partner with senior leaders to identify high-value opportunities and deliver measurable ROI through technical solutions.
  • Oversee end-to-end data science lifecycle from problem formulation to continuous improvement of models.

What we're looking for

  • Over 12 years of experience in data science, machine learning, ontology engineering, or related technical fields.
  • Proven track record of leading multi-disciplinary teams and developing high-performing talent.
  • Deep expertise in semantic modeling, metadata management, entity resolution, and data governance.
  • Strong background in applied AI, including NLP, embeddings, recommendation systems, and model monitoring.
  • Experience with knowledge graph technologies and large-scale data ecosystems like Spark, Python, SQL, cloud platforms.
  • Demonstrated ability to communicate complex technical strategies to executive stakeholders effectively.

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 486 open roles on FindRole.

Listed pay typically runs $117,000–$234,000 across 480 roles with salary data.

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