Senior, Data Scientist at Walmart Sunnyvale, CA

Job Summary

Senior Data Scientist at Walmart Global Tech – Sunnyvale, CA. The Revenue and Marketing Data Science Team develops machine‑learning and AI solutions for marketing, advertising, and social commerce, helping Walmart and partners connect with customers through personalized, AI‑driven experiences.

• Develop and apply state‑of‑the‑art deep‑learning generative models and multi‑modal models such as text, image, and video generation, capturing multimodal data relationships.
• Evaluate trade‑offs between open‑source and cloud APIs for multimodal Gen‑AI in terms of performance and cost efficiencies.
• Work with large‑scale data and curate in‑house domain datasets from scratch.
• Collaborate with engineering teams to define interfaces, understand dependencies, and resolve integration challenges.
• Standardize and build scalable, highly available systems following operational best practices.
• Develop visualizations and reports to communicate model results and insights to business teams effectively.
• Maintain world‑class academic credentials through patents, publications, conference presentations, and external collaboration.

• Expertise in deep‑learning based generative/multi‑modal models or comparable research experience.
• Experience with multimodal generative models for text, image, audio, and video.
• Experience with vision‑language models (VLMs) for classification, detection, segmentation, keypoint detection, and similarity tasks.
• Experience developing models for multimodal synthetic data generation.
• Experience fine‑tuning and deploying large deep‑learning models.
• Experience with prompt engineering and agentic AI design.
• Strong proficiency in Python and data‑science libraries (Num Py, Pandas, PyTorch, etc.).
• Advanced degree in computer science, statistics, data science, mathematics, or a related field;
  PhD a plus.
• Publications in top ML/AI/NLP conferences (e.g., NeurIPS, ICML, ACL, CVPR) a plus.
• Familiarity with Java, Python, Bash, PyTorch, Big Query, SQL, distributed training, GPU MLOps, CI/CD, FAISS, vector stores, and agent SDKs.

• Bachelor’s degree in a quantitative field with 3 years of analytics experience.
• Master’s degree with 1 year of analytics experience.
• At least 5 years of experience in an analytics or related field.

• Advanced knowledge of data science and machine‑learning techniques, optimization models, and proficiency in Python, Spark, Scala, or R.
• Experience implementing web accessibility standards (WCAG 2.2 AA) and creating inclusive digital experiences.

• Competitive base salary ($117K‑$234K) with performance bonuses.
• 401(k) match, stock purchase plan, and incentive awards.
• Paid maternity, parental, and additional family leave.
• Paid time off (PTO), sick leave, and holidays.
• Health, vision, and dental coverage; short‑term and long‑term disability.
• Additional perks such as tuition reimbursement, adoption and surrogacy reimbursement, and company discounts.

Walmart, Inc. is an Equal Opportunity Employer – By Choice. We value diversity, inclusiveness, and respect for all individuals and are committed to providing a drug‑free workplace.