Senior, Software Engineer

Walmart•Sunnyvale, CA

1d•Hybrid

About The Position

The Marketplace Platform Software Engineering team builds shared frontend frameworks, orchestration (micro frontends/app shell), and build tooling that power Walmart Marketplace experiences for Sellers and Solution Partners. We partner closely with Product and UX/UI to deliver scalable, reliable platform capabilities, with a strong focus on performance, monitoring, and developer experience—including leveraging AI/ML and GenAI tools for smarter scaffolding, code generation, diagnostics, and workflow automation. As a Software Engineer on this team, you will focus on building and enhancing reusable web frameworks, shared build pipelines, and platform capabilities. You will contribute to build optimization efforts, spend most of your time writing code, and explore and apply AI-assisted tooling to increase engineering productivity and reliability. You will also contribute to the design, implementation, and evolution of the Orchestration Layer (OL) that coordinates micro frontends, app shell, and shared services, build responsive UIs, work with GraphQL for data layers and APIs, contribute to frontend performance improvements, and contribute to frontend and build architecture decisions. Collaboration with engineers, product managers, and platform teams is key to delivering shared capabilities.

Requirements

Strong experience with TypeScript/JavaScript, HTML, CSS, and React.
Solid experience with modern build tooling such as Webpack, Vite, or similar, along with frontend performance optimization practices.
Experience contributing to Orchestration Layer patterns such as app shell, micro frontend coordination, shared lifecycle management, routing, or similar frontend platform orchestration approaches.
Experience with GraphQL including queries, mutations, subscriptions, and client integration using tools such as Apollo Client or Relay.
Experience working with build optimization, shared tooling, and monorepos.
Demonstrated ability to improve load times, runtime performance, and resource usage.
Understanding of browser storage, memory, and caching strategies.
Interest or experience using GenAI tools to improve developer workflows, automation, or agentic experiences.
Openness to evaluating and adopting AI-assisted tooling.
Track record of writing clean, testable, maintainable TypeScript/JavaScript code and participating in thoughtful code reviews.
Strong analytical and problem-solving skills.
Experience contributing to technical initiatives, working closely with cross-functional partners, and communicating clearly in verbal and written form.
Bachelor'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.
OR 5 years’ experience in software engineering or related area.

Nice To Haves

Familiarity with schema design is a plus.
Familiarity with orchestration tooling such as Nx, Lerna, or similar is a plus.
Master’s degree in Computer Science, Computer Engineering, Computer Information Systems, Software Engineering, or related area and 1 year's 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 joining in creating accessible products and services following Walmart’s accessibility standards and guidelines for supporting an inclusive culture.

Responsibilities

Build and enhance reusable web frameworks, shared build pipelines, and platform capabilities that support multiple product teams.
Contribute to build optimization efforts including bundling, caching, tree-shaking, and code-splitting, while improving developer experience.
Spend most of your time writing code — implementing features, reviewing code, debugging issues, and improving application reliability and performance.
Help maintain quality and consistency across the codebase.
Use GenAI tooling to improve developer and platform workflows through smarter scaffolding, code generation, diagnostics, and automation.
Explore and apply AI-assisted tooling to increase engineering productivity and reliability.
Contribute to the design, implementation, and evolution of the Orchestration Layer (OL) that coordinates micro frontends, app shell, and shared services.
Help ensure consistent lifecycle, routing, and integration patterns so applications run reliably at scale.
Build responsive UIs with TypeScript/JavaScript, HTML, and CSS.
Work with React, Webpack (or similar), and modern frontend tooling.
Apply established design systems and styling approaches for consistency, accessibility, and performance.
Work with GraphQL for platform and product data, including schema usage, queries/mutations, and client integration using tools such as Apollo Client or Relay.
Help ensure efficient and consistent data access patterns across applications.
Contribute to frontend performance improvements across load time, runtime behavior, and resource usage.
Help optimize browser storage and memory usage, and support monitoring and performance best practices.
Contribute to frontend and build architecture decisions.
Stay current with modern frameworks and tooling.
Help document patterns, conventions, and platform capabilities to support broader team adoption.
Partner closely with engineers, product managers, and platform teams to deliver shared capabilities.
Support technical initiatives, participate in design discussions, and help roll out new platform improvements.

Benefits

Incentive awards for performance
401(k) match
Stock purchase plan
Paid maternity and parental leave
PTO
Multiple health plans
Competitive pay
Performance-based bonus awards
Company-paid life insurance
Parental leave
Family care leave
Bereavement
Jury duty
Voting leave
Short-term and long-term disability
Company discounts
Military Leave Pay
Adoption and surrogacy expense reimbursement
PTO and/or PPTO that can be used for vacation, sick leave, holidays, or other purposes
Walmart-paid education benefit program (Live better U) 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.