USA Principal, Software Engineer - AI Evangelist - Walmart

Position Summary... Immigration sponsorship is not available in this role Walmart Global Tech is at the forefront of AI innovation, leveraging cutting-edge technologies to redefine customer experiences. We are seeking a Principal, Software Engineer with deep expertise in Generative AI, Agentic AI, LLMs, and RAG frameworks to lead the design, development, and deployment of advanced AI systems. This role involves architecting scalable solutions, integrating agentic frameworks, and mentoring engineering teams to push the boundaries of AI-driven innovation. What you'll do... As part of Walmart GTP, you will be building highly scalable and reliable APIs, services and applications which will drive the next generation run time platforms. You'll independently handle high impact, critical software/systems monitoring issues, troubleshoot business and production issues. As a member of this fast-moving and highly entrepreneurial team, you'll be able to say that you work for the world's largest retailer and contribute to innovation and development to best-in-class methodologies that impacted perception and drastically changed business as we know it. What you'll do: 1. AI Model Development ; Agentic Frameworks:

• 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.
• Architect 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.
• Provide technical leadership, making design tradeoffs to balance long-term scalability with short-term execution needs
• Partner with teams to integrate AI into platforms.
• Work cross-functionally to design solutions that address both functional and non-functional requirements.
• Drive technical direction for large-scale AI initiatives and mentor other engineers.
• Establish best practices for building and maintaining AI-driven systems.
• Act as a mentor, fostering technical growth within the team and contributing to a culture of continuous learning and innovation.
• Overall 5+ 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.