Senior, Software Engineer

Walmart is hiring a Senior, Software Engineer in Sunnyvale, Santa Clara County, US. This senior‑level role focuses on building high‑scale distributed systems and evolving the Marketplace API Gateway.

Key Responsibilities

• Design, develop, and maintain the Marketplace API Gateway handling high‑volume traffic from sellers and solution partners.
• Architect and implement the new Marketplace GraphQL (mGQL) experience‑centric gateway.
• Write high‑performance, production‑grade code in Java, Rust, and NodeJS.
• Collaborate with front‑end teams to deliver modern, responsive UI components.
• Participate in code reviews, performance tuning, and incident response for critical services.
• Mentor junior engineers and contribute to best‑practice standards across the organization.

Required Qualifications

• Bachelor’s degree in Computer Science, Engineering, or related field (or equivalent experience).
• 5+ years of professional software development experience, including full‑stack work.
• Proficiency in Java, Rust, and NodeJS; strong understanding of distributed system design.
• Experience with GraphQL, RESTful APIs, and high‑throughput gateway architectures.
• Solid front‑end skills using modern frameworks (e.g., React, Angular, or Vue).
• Ability to troubleshoot complex production issues and optimize performance.

Preferred Skills

• Experience with cloud platforms (AWS, GCP) and container orchestration (Kubernetes, Docker).
• Familiarity with CI/CD pipelines, automated testing, and DevOps practices.
• Knowledge of security best practices for API gateways.

Compensation & Benefits

Salary range: $231,405.92 annually.

Walmart offers comprehensive health plans, 401(k) matching, generous paid time off, and professional development opportunities.

Frequently Asked Questions

What technologies will I use in this role?

You will work with Java, Rust, NodeJS for back‑end services, and modern front‑end frameworks such as React, Angular, or Vue, plus GraphQL and REST APIs.

Is remote work available for this position?

Walmart offers flexible work arrangements; candidates should discuss remote or hybrid options during the interview process.

What is the salary for this Senior Software Engineer role?

The position offers a fixed annual salary of $231,405.92.