(USA) Principal, Software Engineer

Position Summary...

What you'll do...

The Wellbeing organization is looking for a Principal Software Engineer – Full Stack to lead the design and implementation of scalable, secure, and resilient enterprise applications that power Walmart’s global workforce. In this strategic role, you will define full-stack architecture, modernize legacy platforms, and integrate cutting-edge technologies including React Native, container frameworks, cloud-native services, and GenAI capabilities. You will provide hands-on technical leadership, mentor engineering teams, and ensure Walmart’s GTA applications remain best-in-class in performance, reliability, and user experience.

What You’ll Do

• Own the end-to-end architecture and implementation of high-scale full-stack applications used by millions of associates globally.
• Lead the technical modernization of legacy systems, including structured migrations from JSP-based UIs to modern React Native containerized applications.
• Design and deliver robust, secure, and scalable APIs, backend services, and front-end components using React, Node.js, TypeScript, and cloud-native technologies.
• Establish and enforce engineering excellence standards across CI/CD, observability, test automation, and system design.
• Guide the adoption of Walmart’s shared container strategy, enabling consistent web and mobile delivery across global markets.
• Integrate GenAI capabilities to enhance user experience, productivity, and automation (e.g., smart form fill, contextual suggestions, developer copilots).
• Partner with cross-functional teams (Product, Design, DevOps, Data, Security) to deliver features aligned to business goals.
• Lead technical planning and execution across multiple markets, balancing reusability with localized needs.
• Mentor engineers and drive continuous learning, design thinking, and technical collaboration across teams.
• Contribute to release readiness, production support strategies, and system performance optimization.

What You’ll Bring

• 13+ years of hands-on software development experience in full-stack environments.
• Proven track record of leading complex, enterprise-scale projects involving millions of users.
• Deep expertise in React, Node.js, TypeScript, RESTful APIs, and cloud-native architecture (e.g., Azure, GCP, or AWS).
• Strong command of containerized and cross-platform development (React Native, Next.js, AllSpark-style frameworks).
• Experience modernizing legacy systems and building greenfield applications.
• Knowledge of GenAI technologies and experience integrating AI/ML components into production systems.
• Strong background in CI/CD, DevOps, monitoring, and performance tuning.
• Familiarity with secure authentication, data modeling, and distributed system patterns.
• Excellent collaboration and leadership skills, with ability to influence without authority.
• Commitment to quality, technical mentorship, and a high-performance engineering culture.

Key Responsibilities within the GTA Modernization Program

• Lead Cross-Market Technical Execution
  Guide design, development, and rollout of core GTA capabilities (e.g., clocking, scheduling, compliance) across U.S., Mexico, and international markets using scalable architectures.
• Migrate Legacy Platforms to Modern Stack
  Own and drive the structured migration from legacy Workbrain/JSP interfaces to a React-based headless architecture with containerized delivery.
• Promote Code Quality and Automation at Scale
  Define and propagate best practices for unit testing, integration testing, static analysis, and deployment pipelines across teams.
• Accelerate GenAI Adoption in GTA
  Champion and lead GenAI innovation in the GTA space—from developer productivity tools to user-facing intelligent suggestions.
• Build a Global-Ready, Modular Platform
  Design technical patterns that support global feature parity, configuration-based localization, and scalable multi-tenant services.

At Walmart, we offer competitive pay as well as performance-based bonus awards and other great benefits for a happier mind, body, and wallet. Health benefits include medical, vision and dental coverage. Financial benefits include 401(k), stock purcha