Senior, Software Engineer

Walmart•Sunnyvale, CA

1d•$117,000 - $234,000•Hybrid

About The Position

About the Team: 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. What You'll Do: Platform & frameworks: 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. Hands-on engineering: 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. GenAI & agentic workflows: 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. Orchestration Layer (OL): 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. Frontend craft: 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. Data layer & APIs: 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. Performance & health: 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. Architecture & standards: 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. Collaboration: 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.

Requirements

Frontend: 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.
Orchestration Layer (OL): Experience contributing to Orchestration Layer patterns such as app shell, micro frontend coordination, shared lifecycle management, routing, or similar frontend platform orchestration approaches.
GraphQL: Experience with GraphQL including queries, mutations, subscriptions, and client integration using tools such as Apollo Client or Relay. Familiarity with schema design is a plus.
Platform / build: Experience working with build optimization, shared tooling, and monorepos. Familiarity with orchestration tooling such as Nx, Lerna, or similar is a plus.
Performance: Demonstrated ability to improve load times, runtime performance, and resource usage. Understanding of browser storage, memory, and caching strategies.
GenAI / tooling: Interest or experience using GenAI tools to improve developer workflows, automation, or agentic experiences. Openness to evaluating and adopting AI-assisted tooling.
Code quality: Track record of writing clean, testable, maintainable TypeScript/JavaScript code and participating in thoughtful code reviews. Strong analytical and problem-solving skills.
Collaboration: Experience contributing to technical initiatives, working closely with cross-functional partners, and communicating clearly in verbal and written form.

Nice To Haves

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.
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.

Responsibilities

Platform & frameworks: 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.
Hands-on engineering: 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.
GenAI & agentic workflows: 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.
Orchestration Layer (OL): 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.
Frontend craft: 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.
Data layer & APIs: 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.
Performance & health: 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.
Architecture & standards: 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.
Collaboration: 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

Beyond our great compensation package, you can receive incentive awards for your performance.
Other great perks include 401(k) match, stock purchase plan, paid maternity and parental leave, PTO, multiple health plans, and much more.
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.
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.