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$147,706–$177,250.
Based on 240 similar postings.
Employer
About Walmart
Walmart Inc. is the world''s largest retailer by revenue, operating a chain of hypermarkets, discount department stores, and grocery stores, as well as a growing e-commerce presence through Walmart.com. Industry: General Merchandise & Grocery Retail
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Listed pay typically runs
$121,000–$242,000
across 473 roles with salary data.
The (USA) Senior, Software Engineer joins the team to build and operate high-scale distributed systems for the Marketplace API Gateway. This role involves designing and evolving the Marketplace GraphQL experience-centric api gateway using the Apollo GQL Federation Framework, while also enhancing developer.walmart.com to improve developer experiences. Key responsibilities include managing the end-to-end lifecycle of backend services, implementing resiliency and observability best practices, and extending the MCP gateway to enable agentic integrations. The position requires proficiency in Java, Rust, and Node.js for backend services, along with React and TypeScript for front-end development. You will solve complex technical problems regarding high-volume traffic from sellers and partners, ensuring API consistency, security, and scalability across the Marketplace domain while driving improvements in schema governance and public integration patterns.
What does a Software Engineer earn in California?
Median $214500 from 1193 postings across 76 companies.
Design and evolve high-scale distributed services for the Marketplace API Gateway.
Lead the development of the Marketplace GraphQL gateway including schema design and federation strategy.
Extend the MCP gateway to enable agentic workflows and context-aware integrations.
Manage the full backend service lifecycle from design and implementation to deployment and monitoring.
Implement best practices for resiliency, observability, rate limiting, and latency reduction.
Build intuitive developer experiences and tooling on developer.walmart.com.
Develop performant UI surfaces and internal tools using React and TypeScript.
Build and optimize backend services using Node.js, Java, or Rust.
What we're looking for
Option 1: Bachelor's degree in computer science, computer engineering, computer information systems, software engineering, or related area and 3 years’ experience in software engineering.
Option 2: 5 years’ experience in software engineering or related area.
Master’s degree in Computer Science, Computer Engineering, Computer Information Systems, Software Engineering, or related area and 1 year's experience (preferred).
Strong experience designing and operating large-scale distributed systems and API gateway platforms.
Deep expertise in GraphQL, including schema design, federation, and performance optimization.
Proficiency in one or more backend languages such as Node.js, Java, or Rust.
Hands-on experience with modern front-end frameworks like React and TypeScript (preferred).
Familiarity with agentic systems, autonomous workflows, or emerging middleware patterns (preferred).