Hiring: (USA) Staff, Data Scientist Company: Walmart Location: Sunnyvale, CA Job Posted Time: 2026-09-16 13:00:28 Target Skills & Keywords : A/B Testing, Data Pipeline, HBase, LLM, Machine Learning, Python, TestNG About the job Required Skills: •Design and develop Generative AI and conversational systems powered by transformer-based LLM architectures (e.g., GPT, Claude, Gemini). •Lead the development of agentic AI systems, including system design for multi-agent workflows, reasoning chains, tool use, and orchestration frameworks. •Develop and optimize prompt engineering strategies, including system prompts, structured prompting, retrieval augmentation, and guardrail design. •Build and deploy end-to-end conversational AI pipelines, from data preparation and model training to evaluation, and monitoring. •Analyze conversational data to identify patterns, perform error analysis, and continuously improve model quality and user experience. •Design evaluation frameworks and experimentation methodologies for conversational AI systems, including offline benchmarks and online A/B testing. •What you'll bring: •Proven expertise in predictive analytics, machine learning algorithms, and data science methodologies. •Proficiency in Python programming and experience with data pipelines •Strong understanding of data strategy, including data quality, governance, and scalable data storage solutions. •Ability to assess, validate, and tune models using statistical and machine learning techniques. •Experience interpreting complex business contexts to translate requirements into actionable data solutions. •Skilled in deploying and monitoring models in production environments with continuous performance evaluation. •Effective communication skills to present data insights and guide junior team members. •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 Compensation: •$143,000 •$286,000 Interested candidates, please apply directly through the job posting on company's career page or try via AI auto apply on this platform. Don't miss this opportunity to join a forward-thinking team!