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Walmart

Principal Software Engineer

Walmart

. Act as a hands-on technical leader and architect for the Marketplace Traffic Exposure platform .

Posted 11/7/2026full-timeUnited StatesLead💰 $143,000 - $286,000 per yearWebsite

Core Competencies

Role fit
Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in designing and scaling event-driven, microservices-based platforms, with a strong focus on backend technologies like Java and modern web frameworks such as React/Redux. Proven ability to lead architectural decisions, mentor engineers, and leverage data-driven insights to enhance system performance and user experiences.

Highest-signal resume keywords
Distributed Systems ExpertiseMicroservices ArchitectureCloud-Native Platform DevelopmentAPI Design and IntegrationTechnical Leadership and Mentorship

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills
JavaMicroservicesEvent-Driven ArchitectureAPI DesignCloud-Native DevelopmentReactReduxPlatform EngineeringData-Driven InsightsSystem Scalability
Soft Skills
CollaborationCommunicationProblem-SolvingMentoringInfluencing
Certifications & Qualifications
Bachelor's Degree in Computer ScienceMaster's Degree Preferred
Industry Keywords
Marketplace SystemsThird-Party Seller PlatformsSystem ReliabilityDeveloper ProductivityContinuous Improvement

Tech Stack

Tools & technologies
CloudDistributed SystemsJavaMicroservicesReactRedux

About the role

Key responsibilities & impact
  • Act as a hands-on technical leader and architect for the Marketplace Traffic Exposure platform
  • Drive the technical vision and architecture for Marketplace Orders and Returns systems
  • Design and scale event-driven, microservices-based platforms, including APIs, webhooks, app integrations, and web front-end applications
  • Lead end-to-end architecture across backend services and modern web front-end using React/Redux
  • Lead platform engineering initiatives to improve developer productivity, system scalability, and reusability
  • Leverage data and AI-driven insights to enhance system intelligence, decision-making, and customer/seller experiences
  • Evaluate and apply emerging technologies and modern engineering practices
  • Lead cross-team architectural decisions for scalability, reliability, and performance
  • Solve distributed-systems challenges involving data consistency, resiliency, and latency
  • Partner with Product and Engineering leaders to translate business needs into scalable technical solutions
  • Influence and align teams across Marketplace, Payments, Fulfillment, and Seller Platform
  • Lead design reviews and establish engineering best practices for APIs, integrations, and front-end applications
  • Drive platform modernization and continuous improvement initiatives
  • Mentor senior engineers and raise the technical bar across the organization
  • Make hands-on technical contributions to critical systems and architectural initiatives
  • Support Walmart Marketplace platforms that enable third-party sellers to sell and manage products on walmart.com

Requirements

What you’ll need
  • 10+ years of software engineering experience in large-scale systems
  • 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 1)
  • 7 years’ experience in software engineering or related area (Option 2)
  • Deep expertise in distributed systems, microservices, and event-driven architectures
  • Strong experience building and scaling cloud-native platforms with high availability and performance
  • Proficiency in backend technologies, including Java
  • Familiarity with modern web frameworks, including React/Redux
  • Experience designing and evolving APIs, webhooks, and external integrations at scale
  • Strong foundation in platform engineering and building reusable, extensible systems
  • Ability to drive architecture across teams and influence technical decisions at scale
  • Experience leveraging data and AI-driven insights to improve systems and user experiences
  • Strong problem-solving skills for complex, ambiguous challenges
  • Track record of mentoring senior engineers and raising the technical bar
  • Excellent collaboration and communication skills across engineering and business stakeholders
  • Master's degree and 3 years' experience are listed as preferred qualifications, not required
  • Benefits eligibility may depend on job classification and length of employment

Benefits

Comp & perks
  • Performance-based bonus awards
  • Medical, vision, and 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 and long-term disability
  • Company discounts
  • Military Leave Pay
  • Adoption and surrogacy expense reimbursement
  • PTO and/or PPTO for vacation, sick leave, holidays, or other purposes
  • Live Better U Walmart-paid education benefit program
  • Fully paid tuition, books, and fees for eligible education programs
  • English Language Learning and short-form certificates through Live Better U
  • Additional compensation may include stock