Staff, Software Engineer- GenAI Initiative

About the role

Focusing on customer, associate and business needs, this team works with Walmart International, which includes more than 5,200 retail units, operating in 23 countries such as Canada, Central America, Chile, China, India, Mexico and South Africa to name a few.

Responsibilities

• Design ; develop highly scalable services and solve complex software systems problems by leveraging state-of-the-art technology.
• Gain exposure to various emerging technologies used in Advertising and E-commerce platforms.
• Provide technical direction, architecture leadership and expertise to the team.
• Lead by example. Show your chops as an exceptional and experienced developer.
• Drive projects of high visibility across the organization.
• Key Responsibilities: 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.
• Architecture ; Scalability: 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.
• Collaboration ; Product Integration: Partner with product teams to integrate AI into customer-facing applications.
• Work cross-functionally to design solutions that address both functional and non-functional requirements.
• Leadership ; Mentorship: Drive technical direction for large-scale AI initiatives and mentor junior engineers.
• Establish best practices for building and maintaining AI-driven systems.

Requirements

• Overall 9+ 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) is preferred.
• Experience with Generative AI models (e.g., GPT, Gemini) and their fine-tuning. Contributions to open-source projects or publications in Generative AI, RAG, or agentic frameworks is preferred.
• Strong understanding of system design, non-functional requirements, and design patterns is preferred.
• About Walmart Global Tech

Additional Information

Position Summary... What you'll do... As part of Walmarts Global Sourcing Backend team, you will be building highly scalable and reliable APIs, services and applications which will drive the next generation purchase order management system. 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 worlds largest retailer and contribute to innovation and development to best-in-class methodologies that impacted perception and drastically changed business as we know it.

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