Principal, Software Engineer
About The Position
As a Principal Software Engineer, you'll define the technical direction for one of the core capabilities within WatchTower, the engineering operating system for Marketplace. You'll solve complex engineering problems, influence architecture across multiple teams, and build platforms that improve how thousands of engineers develop, deploy, operate, and support software. This role combines deep technical expertise with strategic influence to shape the future of engineering across Marketplace. The Marketplace Platform Reliability team develops and maintains engineering systems that enable thousands of engineers to deliver reliable, scalable, and high-performing software. This team manages platforms, operational intelligence, AI capabilities, and engineering standards to enhance productivity and system reliability. Focused on innovation and continuous improvement, the team drives technical excellence through collaboration, strategic alignment, and effective program management. Members design robust, scalable solutions supporting business growth while optimizing operational efficiency and maintaining high-quality standards across the Marketplace organization.
Requirements
- Deep expertise designing and building large-scale distributed systems or platform software.
- Strong background in cloud-native architecture, microservices, Kubernetes, and modern software engineering practices.
- Experience leading architecture across multiple teams and influencing technical direction through engineering leadership.
- Proven ability to solve complex technical problems and deliver scalable platform capabilities.
- Experience with developer platforms, operational tooling, AI, observability, or infrastructure engineering.
- Excellent communication skills with the ability to influence engineers and leaders across large organizations.
- 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.
Nice To Haves
- 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.
- 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.
- 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.
Responsibilities
- Define the technical vision and architecture for a core WatchTower platform capability.
- Design and build highly scalable distributed systems that improve reliability, developer productivity, and operational intelligence.
- Partner with engineering leaders to drive architecture, engineering standards, and technical strategy across Marketplace.
- Mentor engineers and provide technical leadership across multiple teams without direct organizational authority.
- Drive innovation through AI, automation, cloud-native technologies, and modern software engineering practices.
Benefits
- Competitive pay
- Performance-based bonus awards
- Medical coverage
- Vision coverage
- Dental coverage
- 401(k)
- Stock purchase
- Company-paid life insurance
- PTO (including sick leave)
- Parental leave
- Family care leave
- Bereavement leave
- Jury duty leave
- Voting leave
- Short-term disability
- Long-term disability
- Company discounts
- Military Leave Pay
- Adoption expense reimbursement
- Surrogacy expense reimbursement
- PTO and/or PPTO that can be used for vacation, sick leave, holidays, or other purposes
- Live Better U (Walmart-paid education benefit program for full-time and part-time associates)
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What This Job Offers
Job Type
Full-time
Career Level
Principal
