Principal, Software Engineer
Confirmed on the employer's own hiring board on Nov 7, 2026. First seen by Alion on Nov 6, 2026. Walmart scores A on the Alion truth index.
Position Summary...
What you'll do...
Whatyou'lldo...
As a Principal Engineer, you will act as ahands-on technical leader and architect for the MarketplaceTraffic Exposureplatform. This role requiresdeep technicalexpertiseand strong engineering judgment, with a focus onplatform engineering to build scalable, resilient, and extensible systems across both backend and frontend layers.
You will drive architectural excellence, evaluate and adopt modern technologies, and solve complex problems across a distributed, high-scale environment while leading through influence across teams.
About the Team:
Marketplace Engineering team is at the forefront of building core platforms and services to enable Walmart to deliver vast selection at competitive prices and with best-in-class customer experience by enabling third-party sellers to the marketplace platform, sell and manage their products to our customers onwalmart.com.We do this by managing the entire seller lifecycle,monitoringcustomer experience, anddeliverhigh- valueinsights to our sellers to help them plan their assortment, price, inventory. The team also actively collaborates with partner platform teams to ensure we continue to deliver the best experience to our sellers and our customers.
WhatYou’lldo:
Drive thetechnical vision and architecture for Marketplace Orders and Returns systems
Design and scaleevent-driven, microservices-based platforms, includingAPIs, webhooks, and app integrations, along withweb front-end applications for Marketplace workflows
Lead end-to-end architecture across backend services andmodern web front-end (React/Redux)to deliver seamless user experiences
Leadplatform engineering initiatives to improve developer productivity, system scalability, and reusability across teams
Leveragedata and AI-driven insights to enhance system intelligence, decision-making, and customer/seller experiences
Stay current with emerging technologies andapply modern engineering and platform practices to evolve the ecosystem
Leadcross-team architectural decisions to ensure scalability, reliability, and performance
Solve complex challenges indistributed systems, including data consistency, resiliency, and latency
Partner with Product and Engineering leaders totranslate business needs into scalable technical solutions
Influence and align multiple teams across Marketplace, Payments, Fulfillment, and Seller Platform
Lead design reviews andestablishengineering best practices for APIs, integrations, and front-end applications
Driveplatform modernization and continuous improvement initiatives
Mentor senior engineers andraise the technical bar across the organization
Lead by example through hands-on technical contributions to critical systems and architectural initiatives
Whatyou’llbring:
10+ years of software engineering experience in large-scale systems
Deepexpertiseindistributed systems, microservices, and event-driven architectures
Strong experience building and scalingcloud-native platforms with high availability and performance
Proficiencyin backend technologies (Java) and familiarity with modern web frameworks (React/Redux)
Experience designing and evolvingAPIs, webhooks, and external integrations at scale
Strong foundationinplatform engineering and building reusable, extensible systems
Proven ability todrive architecture across teams and influence technical decisions at scale
Experienceleveragingdata and AI-driven insights to improve systems and user experiences
Strong problem-solving skills with the ability to navigatecomplex, ambiguous challenges
Track recordof mentoring senior engineers and raising the overall technical bar
Excellent collaboration and communication skills across engineering and business stakeholders
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. The amount you receive depends on your job classification and length of employment. It will meet or exceed the requirements of paid sick leave laws, where applicable.
For information about PTO, see https://one.walmart.com/notices.
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.
Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to a specific plan or program terms.
For information about benefits and eligibility, see One.Walmart.
Sunnyvale, California US-11658: The annual salary range for this position is $143,000.00 - $286,000.00
Bellevue, Washington US-11663: The annual salary range for this position is $132,000.00 - $264,000.00
Additional compensation includes annual or quarterly performance bonuses.
Additional compensation for certain positions may also include :
- Stock
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Minimum Qualifications...
Outlined below are the required minimum qualifications for this position. If none are listed, there are no minimum qualifications.
Option 1: 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.Option 2: 7 years’ experience in software engineering or related area.
Preferred Qualifications...
Outlined below are the optional preferred qualifications for this position. If none are listed, there are no preferred qualifications.
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.