Principal Sofware Engineer (Mobile)
Summary
Principal engineer on Walmart's International Mobile Team, leading architecture and mentorship for large-scale iOS/Android retail apps built with Swift/Kotlin, integrating backend services via GraphQL/REST, and driving testing, CI/CD, and engineering best practices.
What You'll Do
We are seeking a talented and passionate Principal Software Engineer (Mobile) to join our International Mobile Team. The ideal candidate will have experience as a tech lead and a strong development background in mobile-first architectures using Swift (iOS) or Kotlin (Android). Expertise in backend integration using GraphQL (desired) and a proven track record of delivering high-quality, scalable mobile applications are essential. You will collaborate with product teams, designers, and architects to design, develop, and enhance reliable and easy-to-maintain mobile infrastructure.
About the Team
This team focuses on delivering exceptional mobile experiences to support customers, associates, and business needs across Walmart International, which includes operations in 23 countries such as Canada, Central America, Chile, China, India, Mexico, and South Africa.
Responsibilities
- Leadership & Mentorship: Guide and mentor a team of mobile engineers, conducting code reviews and leading design discussions to ensure engineering best practices.
- Architectural Leadership: Define and maintain the mobile architecture strategy to ensure scalability, performance, and seamless integration with backend systems (including GraphQL APIs).
- Software Craftsmanship: Consistently deliver high-quality mobile code with an emphasis on testing (unit, UI, integration) and continuous integration/continuous deployment (CI/CD) pipelines.
- Technical Documentation: Develop comprehensive technical documentation to communicate design decisions and architectural approaches clearly (Pe.ADR; Architecture Design Record)
- Engineering Advocacy: Promote technical standards and best practices, fostering a culture of engineering excellence and innovation.
- Project Leadership: Lead major project phases, aligning designs with technical requirements and business objectives.
- Cross-functional Collaboration: Work closely with Product Management, UX/UI teams, Quality Assurance, and DevOps to deliver exceptional mobile products.
- Innovation & Research: Stay up-to-date with the latest in mobile technology trends, including new Swift/Kotlin features, GraphQL integrations, and emerging frameworks/tools.
- Ensure security and compliance: Promote and enable security standards, regulations, and corporate security policies
What you´ll bring
- 8+ years of software development experience, with at least 5+ years in mobile app development (Swift/Kotlin).
- Proven track record of building and delivering large-scale, high-quality mobile applications.
- Proficiency in API integration (REST, GraphQL preferred).
- Strong knowledge of design patterns, mobile architectures, and best practices for iOS and Android.
- Experience with modern CI/CD pipelines for mobile applications.
- Familiarity with backend technologies and cloud platforms (e.g., Azure, GCP).
- Expertise in debugging and troubleshooting mobile performance issues.
- Experience leading technical teams and mentoring engineers.
About Walmart Global Tech
Imagine working in an environment where one line of code can make life easier for hundreds of millions of people. That’s what we do at Walmart Global Tech. We’re a team of software engineers, data scientists, cybersecurity experts and service professionals within the world’s leading retailers who make an epic impact and are at the forefront of the next retail disruption. People are why we innovate, and people power our innovations. We are people-led and tech-empowered. We train our team in the skillsets of the future and bring in experts like you to help us grow. We have roles for those chasing their first opportunity as well as those looking for the opportunity that will define their career. Here, you can kickstart a great career in tech, gain new skills and experience for virtually every industry, or leverage your expertise to innovate on a scale that impacts millions and reimagine the future of retail.
Flexible, hybrid work:
We use a hybrid way of working that is primarily in office coupled with virtual when not onsite. Our campuses serve as a hub to enhance collaboration, bring us together for purpose and deliver on business needs. This approach helps us make quicker decisions, remove the location barriers across our global team and be more flexible in our personal lives.
Equal Opportunity Employer:
Walmart, Inc. is an Equal Opportunity Employer – By Choice. We believe we are best equipped to help our associates, customers and the communities we serve live better when we really know them. That means understanding, respecting and valuing diversity- unique styles, experiences, identities, ideas and opinions – while being inclusive of all people.