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(USA) Staff, Software Engineer - AI-RAG Expert

Walmart

$143,000 - $286,000
Aug 27, 2025
Sunnyvale, CA, US
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Walmart Global Tech is seeking a Staff, Software Engineer to lead the design, development, and deployment of advanced AI systems, leveraging cutting-edge technologies to redefine customer experiences.

Requirements

  • Overall 4+ years of experience in machine learning / software engineering, with 2+ years in Generative AI or LLMs.
  • Strong experience with RAG frameworks, vector search technologies and knowledge grounding techniques.
  • Expertise in Python, ML frameworks (PyTorch, TensorFlow), and libraries like Hugging Face Transformers.
  • Proficiency in distributed computing, cloud platforms (GCP, Azure), and scalable architectures.
  • Familiarity with disaster recovery principles and building resilient, fault-tolerant systems.
  • Experience with multi-modal models (text, image, video) and advanced optimization techniques (e.g., quantization, distillation).
  • Experience with Generative AI models (e.g., GPT, Gemini) and their fine-tuning.

Responsibilities

  • Design, fine-tune, and deploy Generative AI models with a focus on RAG frameworks to enhance information retrieval and generation.
  • Develop and optimize LLM-based agents for tasks like knowledge grounding, multi-step reasoning, and decision-making.
  • Integrate external data sources (e.g., vector databases) with LLMs to build dynamic, context-aware systems.
  • Assist in Architecting scalable, distributed AI systems with a focus on performance, fault tolerance, and disaster recovery.
  • Develop detailed design specifications, including modular, extensible, and functional components.
  • Build MVPs to validate requirements and refine designs iteratively.
  • Partner with architects to design AI for platform consumption.

Other

  • Bachelor's degree in computer science, computer engineering, computer information systems, software engineering, or related area and 4 years’ experience in software engineering or related area.
  • 6 years’ experience in software engineering or related area.
  • Master’s degree in Computer Science, Computer Engineering, Computer Information Systems, Software Engineering, or related area and 2 years' experience in software engineering or related area.
  • Knowledge of accessibility best practices and experience creating inclusive digital experiences.
  • Ability to work in Sunnyvale, CA