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Jobs · Engineering · Arkansas

Senior Data Scientist: Associate AI Experience

Walmart · Bentonville, AR · 2 wk ago
On-siteEngineering$90k–$180k/yrPart-time

About the role

The Associate AI Experiences team applies advanced data science, machine learning, and agentic AI to solve high-impact business problems across Walmart globally. You’ll build production Agentic systems, deploy autonomous AI agents, and translate complex data into actionable insights that drive measurable business value at massive scale.

Responsibilities

  • Build and deploy production ML systems end-to-end: data pipelines, feature stores, model training, serving layers, monitoring, and feedback loops at scale
  • Provide technical vision and lead advanced development in agentic AI, reinforcement learning, and simulation
  • Architect and deploy large-scale AI systems and autonomous AI agents — conversational assistants, predictive agents with tool-calling, and multi-agent orchestration systems using LangChain, Pydantic AI, and RAG patterns
  • Deploy NLP pipelines at enterprise scale — semantic similarity across millions of records using BERT/SBERT embeddings and vector search (FAISS)
  • Lead high-impact projects end-to-end; problem framing, modeling, prototyping, production architecture, and rollout
  • Author and review technical designs and standards; present findings to senior leadership
  • Mentor senior scientists and engineers on advanced modeling techniques, feature engineering, and experimentation design - raising the technical bar across teams
  • Establish best practices for model validations, experiment design, and safe deployment of AI systems
  • Influence roadmap prioritization and long-term strategy for AI and simulation capabilities
  • Present insights to senior leadership with compelling data visualization, quantified business impact, and clear confidence intervals

Requirements

  • Experience building and deploying AI/ML solutions in production environments
  • Strong proficiency in Python and common ML libraries (scikit-learn, XGBoost/LightGBM, PyTorch/TensorFlow)
  • Demonstrated AI/ML engineering experience: Pipeline orchestration (Airflow, Dagster, Prefect), Model packaging/serving (FastAPI, BentoML, TorchServe), Containerization and deployment (Docker, Kubernetes), CI/CD and testing practices for AI/ML, Monitoring, observability (model metrics, drift, logging)
  • Solid understanding of statistics, experimental design, and causal/measurement thinking
  • Experience with agentic AI / LLM systems including: Tool/function calling and agent orchestration framework (LangGraph/LangChain, Semantic Kernel, LlamaIndex, custom orchestrators). Prompt strategies, structured outputs, and reliability techniques, RAG design and optimization. LLM/agent evaluation methodologies
  • Solid SQL skills and experience working with large-scale datasets
  • Ability to translate complex analytical results into clear business recommendations for non-technical stakeholders

Qualifications

  • Masters degree in Statistics, Economics, Analytics, Mathematics, Computer Science, Information Technology, or related field AND 3+ years’ experience in data science or Machine Learning roles with demonstrated impact
  • PhD in AI, Machine Learning, Computer Science, Information Technology, Statistics, Applied Mathematics, Econometrics, or related field with relevant industry experience

Skills

  • Experience with agentic AI / LLM systems including: Tool/function calling and agent orchestration framework (LangGraph/LangChain, Semantic Kernel, LlamaIndex, custom orchestrators). Prompt strategies, structured outputs, and reliability techniques, RAG design and optimization. LLM/agent evaluation methodologies
  • Experience with NLP pipelines at enterprise scale — semantic similarity across millions of records using BERT/SBERT embeddings and vector search (FAISS)
  • Experience with large-scale datasets and solid SQL skills
  • Ability to translate complex analytical results into clear business recommendations for non-technical stakeholders

Benefits

At Walmart, we offer competitive pay as well as performance-based bonus awards and other great benefits for a happier mind, body, and wallet. Health benefits include medical, vision and dental coverage. Financial benefits include 401(k), stock purchase and company-paid life insurance. Paid time off benefits include PTO (including sick leave), parental leave, family care leave, bereavement, jury duty, and voting. Other benefits include short-term and long-term disability, company discounts, Military Leave Pay, adoption and surrogacy expense reimbursement, and more. You will also receive PTO and/or PPTO that can be used for vacation, sick leave, holidays, or other purposes. The amount you receive depends on your job classification and length of employment. It will meet or exceed the requirements of paid sick leave laws, where applicable.

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