Principal, Software Engineer– Frontend; Mobile

Position Summary... What you'll do... Walmart’s Corporate Technology and Services (CTS) comprises seven specialized teams delivering advanced technology solutions that drive impact across the organization. As part of Walmart Global Tech, CTS teams uphold operational excellence and leverage emerging technologies to support millions of customers, associates, and suppliers worldwide. The team fosters innovation through expertise in software design, cloud-native architecture, Dev Ops engineering, and data-driven decision making.

Members collaborate to develop scalable, secure, and high-quality solutions, continuously improving processes and embracing new tools to meet evolving business needs effectively.

We are seeking a highly skilled Principal, Software Engineer– Frontend (Mobile) to lead the design and development of next-generation mobile applications. This role requires deep expertise in React, React Native, and Expo, combined with a strong grasp of modern mobile and web technologies. As a Principal Engineer, you will set technical direction, mentor engineers, and drive innovation using AI-driven developer tools (Agentic AI, MCP, LLMs) to accelerate productivity and enhance user experiences.

• Provide technical leadership:
  Lead teams of engineers—including offshore associates—through technical direction, architectural guidance, and solution reviews.
• Guide discovery and delivery:
  Partner with Product, UX, and business stakeholders to define technical strategies, validate solutions, and deliver high-impact projects.
• Own mobile development:
  Architect, build, and scale React Native applications using Expo, and modern JavaScript/Type Script.
• Drive technical direction:
  Establish best practices for state management, performance optimization, and platform-specific integrations across iOS and Android.
• Mentor and grow teams:
  Coach engineers on React and mobile fundamentals, fostering a culture of technical excellence.
• Ensure reliability and scale:
  Oversee the full lifecycle of mobile apps, including publishing, CI/CD pipelines, and release management.
• Optimize performance:
  Apply advanced React Native techniques to deliver smooth, secure, and responsive apps.
• Leverage AI tooling:
  Utilize Agentic AI, MCP, and LLM-based developer tools to streamline workflows, improve code quality, and accelerate delivery.
• Promote collaboration:
  Work cross-functionally to deliver seamless, high-quality experiences to millions of users.

• 10+ years of experience in software engineering with 5+ years in frontend/mobile development.
• Deep expertise in React Native, Expo, JavaScript/Type Script fundamentals.
• Proven track record of delivering and scaling consumer-facing mobile apps, including App Store and Google Play deployments.
• Strong knowledge of mobile OS internals (iOS/Android project structures, native modules, platform integrations).
• Practical experience with React patterns, hooks, and performance optimization techniques.
• Demonstrated ability to mentor and lead teams, with excellent communication skills to convey complex technical concepts.
• Familiarity with AI developer tools (Agentic AI, MCP, LLMs) and a track record of adopting new technologies to improve engineering productivity.

The annual salary range for this position is $ - $

• 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, and more.
• You will also…