Scientist Jobs

About The Position

Requirements

• Deep expertise in ML algorithms (XGBoost, CatBoost, LightGBM, Random Forest, AutoML) and deep learning (PyTorch, transformer architectures)
• Production experience with NLP (BERT, SBERT, FAISS, RAG), computer vision (YOLO, CLIP), and time series forecasting (ARIMA, Prophet)
• Hands-on experience building and orchestrating multiple AI agents with LangChain, RAG, tool integration, and memory management
• Multi-cloud ML platform proficiency — AWS SageMaker AND GCP (Vertex AI, BigQuery, BigQuery ML)
• Strong Python skills (Pandas, NumPy, Scikit-learn) with containerization (Docker) and MLOps practices
• Advanced statistical analysis, experiment design, and causal inference
• Experience deploying production-grade AI systems at scale
• Ability to translate complex analytical results into clear business recommendations for non-technical stakeholders
• Masters degree in Statistics, Economics, Analytics, Mathematics, Computer Science, Information Technology, or related field AND 5+ years’ experience in data science or Machine Learning roles with demonstrated impact
• Bachelors degree in Statistics, Economics, Analytics, Mathematics, Computer Science, Information Technology or related field and 5 years' experience in an analytics related field
• Masters degree in Statistics, Economics, Analytics, Mathematics, Computer Science, Information Technology or related field and 3 years' experience in an analytics related field
• 7 years' experience in an analytics or related field

Nice To Haves

• PhD in AI, Machine Learning, Computer Science, Information Technology, Statistics, Applied Mathematics, Econometrics, or related field with relevant industry experience
• Data science, machine learning, optimization models
• Publications or active peer reviewer in related journals or conference
• Successful completion of one or more assessments in Python, Spark, Scala, or R
• Using open source frameworks (for example, scikit learn, tensorflow, torch)
• Knowledge in implementing Web Content Accessibility Guidelines (WCAG) 2.2 AA standards, assistive technologies, and integrating digital accessibility seamlessly
• Knowledge of accessibility best practices and Walmart’s accessibility standards and guidelines for supporting an inclusive culture

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
• Design agentic evaluation frameworks that benchmark agent performance across task completion, code quality, and multi-step reasoning accuracy
• 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, experimentation, 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

Benefits

• Competitive pay
• Performance-based bonus awards
• Medical coverage
• Vision coverage
• Dental coverage
• 401(k)
• Stock purchase
• Company-paid life insurance
• PTO (including sick leave)
• Parental leave
• Family care leave
• Bereavement
• Jury duty
• Voting leave
• Short-term disability
• Long-term disability
• Company discounts
• Military Leave Pay
• Adoption and surrogacy expense reimbursement
• Walmart-paid education benefit program (Live Better U) for full-time and part-time associates in Walmart and Sam's Club facilities, covering tuition, books, and fees for programs ranging from high school completion to bachelor's degrees, including English Language Learning and short-form certificates
• Annual or quarterly performance bonuses
• Stock