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Principal, Software Engineer

United States of America, Sunnyvale Employment contract 143000.00 - 286000.00 USD / Year · Job Posted June 02, 2026
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Job Description

Building the right technology foundation for Infrastructure & platforms is vital to success at the scale of Walmart. The Global Tech Platform organization builds and maintains the foundational technologies that support the tech organization. Included in this are Developer Experience and Productivity, Gen-AI, data platforms, enterprise architecture, DevOps, cloud computing, and infrastructure. All these products and services are supported by scalable and powerful infrastructure, ensuring a secure and seamless employee and customer experience across stores, digital channels, and distribution centers. About the team... The Wibey Web team develops and maintains the browser-based interface for Wibey, Walmart’s intelligent orchestration platform for software development and operations. They enable users to search content across internal sources, leverage AI to enhance prompts, and access trusted answers with citations. They also provide SDKs that allow different teams within Walmart to contribute to and extend the platform. The team’s mission is to support everyone who builds or runs software at Walmart by providing a unified entry point to tools, documentation, and agent-powered actions throughout the entire SDLC (plan, build, ship, run). Role Summary... As a Principal, Software Engineer for Walmart’s new developer-focused super-agent, Wibey, you will work with other technical leaders on the team to architect and build the Wibey Web experience for Walmart developers. You'll be building the foundation for how thousands of developers leverage AI across Walmart's technology ecosystem, architecting solutions for the Web surface of Wibey. From defining standards and building tools (an SDK) for integrations with other apps and agents to exploring and identify new use-cases and user-flows, your work will directly impact developer productivity, code quality, and innovation velocity at enterprise scale

Job Responsibility

  • Design and implement Wibey Web features, App integrations and extensions that provide seamless AI-assisted development workflows
  • Design scalable front-end and back-end systems to support a web interface capable of accommodating thousands of developers
  • Build integration with internal tools using industry standard protocols like MCP and A2A
  • Drive Innovation
  • Create agentic solutions that intelligently automate developer workflows: code generation, testing, PR reviews, documentation, and deployment
  • Implement quality benchmarking frameworks to measure AI-generated code correctness and developer productivity impact
  • Design enterprise governance controls that balance developer velocity with security and compliance requirements
  • Lead and Collaborate
  • Partner with product managers, platform engineers, and security teams to define and execute the Wibey roadmap
  • Establish engineering best practices and quality standards for AI-assisted development
  • Mentor junior engineers on the team
  • Stay ahead of the rapidly evolving GenAI landscape and bring emerging capabilities to Walmart developers

Requirements

  • 10+ years of software engineering experience with proven expertise in building developer-facing tools and platforms
  • Deep understanding of developer experience (DevEX) principles and productivity optimization
  • Production experience integrating LLM/GenAI capabilities into enterprise systems and understanding technologies like Model Context Protocol (MCP), A2A protocol, etc.
  • Hands-on experience with AI coding assistants (Claude Code, GitHub Copilot, Cursor, Gemini CLI, or similar)
  • Strong systems design skills for building scalable, resilient backend and frontend services
  • Exceptional communication and collaboration skills, with the ability to lead architectural discussions, mentor peers, and influence technical direction across multiple teams
  • Proficiency in modern development tools and infrastructure (CICD, Trunk Based Development, CLI frameworks, IDE extensions, API design)
  • Extensive experience in full-stack software development with proficiency in React, Java, JavaScript, Python, and related frameworks
  • Option 1: Bachelor's degree in computer science, computer engineering, computer information systems, software engineering, or related area and 5 years experience in software engineering or related area
  • Option 2: 7 years experience in software engineering or related area

Nice to have

  • Master's degree in computer science, computer engineering, computer information systems, software engineering, or related area and 3 years experience in software engineering or related area
  • Knowledge in implementing Web Content Accessibility Guidelines (WCAG) 2.2 AA standards, assistive technologies, and integrating digital accessibility seamlessly
  • Knowledge of accessibility best practices

What we offer

  • Health benefits include medical, vision and dental coverage
  • Financial benefits include 401(k), stock purchase and company-paid life insurance
  • Paid time off benefits include PTO (including sick leave), parental leave, family care leave, bereavement, jury duty, and voting
  • Other benefits include short-term and long-term disability, company discounts, Military Leave Pay, adoption and surrogacy expense reimbursement
  • Live Better U education benefit program
  • Performance-based bonus awards
  • Stock

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