(USA) Principal, Software Engineer

Walmart-posted 9 days ago
$110,000 - $220,000/Yr
Full-time • Mid Level
Bentonville, AR
5,001-10,000 employees
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Principal Full Stack Software Engineer About the Role We are looking for a Principal Full Stack Software Engineer to lead the modernization of one of our key enterprise applications. This role is highly hands-on, technically demanding, and ideal for an engineer who excels at building scalable, user-centered platforms while lifting the technical bar across the organization.As a Principal Engineer, you will steer the technical direction of a multi-million-user application as it transitions from a legacy JSP-based experience to a modern, responsive React Native application that also renders seamlessly on the web through our standardized container architecture. You will collaborate across product, engineering, design, and backend teams to deliver a production-ready solution within 6 months.This is a role for a builder, an architect, a mentor, and a trusted technical partner.

  • Lead the Full-Stack Architecture & Execution Own end-to-end technical delivery of a cross-platform React Native application rendered on mobile and web through a shared container system. Make strategic decisions balancing scalability, performance, user experience, security, and long-term maintainability. Write high-quality, production-grade code as the technical role model for the team.
  • Adopt and Advance the Company’s Container Strategy Implement the standardized container platform to deploy web and mobile experiences consistently. Act as a trusted partner to evolve container framework capabilities, improve developer experience, and ensure best-practice adoption across feature teams.
  • Lead Migration from Legacy JSP to Modern React Native/Web UI Drive the structured migration of legacy JSP screens into modular, component-based React Native code. Ensure parity with existing business logic while improving usability, accessibility, and performance. Define migration sequencing, risk mitigation, and rollout strategy.
  • Establish Development Best Practices & Automation Introduce modern engineering standards including automated testing, coding guidelines, CI/CD pipelines, linting, and observability. Guarantee high-quality through unit testing, integration testing, and UI automation. Mentor and uplift engineers through code reviews, architecture sessions, and hands-on pairing.
  • Integrate GenAI/AI Capabilities Thoughtfully Identify meaningful opportunities to inject GenAI into the product experience (e.g., intelligent suggestions, autofill, contextual support). Leverage GenAI frameworks to enhance developer productivity, improve testing, or streamline workflow automation. Partner with ML/AI teams to integrate AI services safely and responsibly.
  • Collaborate End-to-End Across the Organization Work closely with backend teams to design GraphQL schemas, APIs, and access patterns. Partner with product and UX teams to define a cohesive user experience. Ensure alignment with cross-functional stakeholders to deliver a reliable, secure, and scalable solution.
  • Deliver a Production-Ready MVP in Six Months Own key milestones and drive execution across engineering teams to ensure an on-time, high-quality launch. Champion operational readiness, performance validation, accessibility, and end-to-end integration with backend services.
  • 13+ years of hands-on software engineering experience building large-scale, production-grade applications.
  • Proven track record delivering applications serving 2M+ users or equivalent enterprise-scale workloads.
  • Expert-level proficiency in: React, React Native, Next.js Node.js, Typescript GraphQL architecture and integration
  • Strong understanding of mobile and web application patterns, component-driven development, and responsive UI frameworks.
  • Experience implementing: CI/CD pipelines Automated testing (unit, integration, UI) Observability and metrics instrumentation
  • Deep expertise in performance optimization, debugging, and delivering resilient distributed systems.
  • Experience integrating authentication, authorization, and secure API communication patterns.
  • Strong communication skills with the ability to influence engineering teams and cross-functional partners.
  • 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.
  • 7 years’ experience in software engineering or related area.
  • Strong experience with containerized frontend frameworks (or modular architecture platforms).
  • Experience adopting or integrating GenAI frameworks, LLM APIs, or AI-driven components .
  • Prior responsibility for leading migration of legacy enterprise systems to modern stacks.
  • Experience delivering applications to mobile app stores and/or high-scale web deployments.
  • Demonstrated ability to elevate engineering culture through mentorship, standard-setting, and example-driven leadership.
  • 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.
  • We value candidates with a background in creating inclusive digital experiences, demonstrating knowledge in implementing Web Content Accessibility Guidelines (WCAG) 2.2 AA standards, assistive technologies, and integrating digital accessibility seamlessly.
  • The ideal candidate would have knowledge of accessibility best practices and join us as we continue to create accessible products and services following Walmart’s accessibility standards and guidelines for supporting an inclusive culture.
  • 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 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 receive PTO and/or PPTO that can be used for vacation, sick leave, holidays, or other purposes.
  • Live Better U is a Walmart-paid education benefit program for full-time and part-time associates in Walmart and Sam's Club facilities.
  • Programs range from high school completion to bachelor's degrees, including English Language Learning and short-form certificates.
  • Tuition, books, and fees are completely paid for by Walmart.
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