Senior, Software Engineer- Full Stack

Position Summary... What you'll do...
Immigration sponsorship is not available for this role
This is a full-time, onsite role at our Sunnyvale, CA office. This position is not eligible for remote work.
About the Team:

Walmart’s top‑of‑funnel and discovery platforms power digital entry experiences for millions of customers across multiple markets, brands, and tenants. These systems support:

• Multi‑tenant architectures
• Region‑specific configurations
• High‑throughput traffic patterns
• Real‑time personalization and experimentation

As a Senior Software Engineer (Rust), you will design and build low‑latency, highly available, multi‑tenant distributed systems operating at internet scale.

• Develop production‑grade Rust services using async frameworks (Tokio, Axum, Actix).
• Leverage Rust’s ownership and concurrency model to build memory‑safe, highly performant systems.
• Optimize services for: CPU efficiency, Memory footprint, Network throughput, Multi‑tenant workload distribution
• Drive full SDLC in a cloud‑native environment: CI/CD automation, canary & blue/green deployments, automated load, stress, and chaos testing, observability and distributed tracing
• Architect and implement resilient microservices capable of multi‑region, multi‑tenant scale.
• Integrate real‑time ML inference services into high‑throughput Rust backends.

• 5+ years of backend or distributed systems engineering experience.
• Production experience with Rust in high‑performance, scalable systems.
• Experience with Kubernetes & Containers
• Engineering & Architecture experience
• Deep understanding of Async programming and multithreading, Memory management, Networking fundamentals, Distributed systems principles
• Experience designing and operating multi‑tenant systems.
• Proficiency in cloud‑native architectures (Kubernetes, containers, CI/CD).
• Strong debugging, profiling, and performance optimization skills.

• Experience building large‑scale customer‑facing digital platforms.
• Familiarity with CDN strategies and edge computing.
• Exposure to personalization, experimentation, or recommendation systems.
• Experience preparing systems for extreme traffic events.
• Contributions to Rust open‑source ecosystem.

Imagine working in an environment where one line of code can make life easier for hundreds of millions of people. That's what we do at Walmart Global Tech. We're a team of software engineers, data scientists, cybersecurity experts and service professionals within the world's leading retailer who make an epic impact and are at the forefront of the next retail disruption.

People are why we innovate, and people power our innovations. We are people‑led and tech‑empowered. We train our team in the skillsets of the future and bring in experts like you to help us grow. We have roles for those chasing their first opportunity as well as those looking for the opportunity that will define their career. Here, you can kickstart a great career in tech, gain new skills and experience for virtually every industry, or leverage your expertise to innovate at scale, impact millions and reimagine the future of retail.

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.

Walmart, Inc. is an Equal Opportunity Employer by Choice. We believe we are best equipped to help our associates, customers, and the communities we serve live better when we really know them. That means understanding, respecting, and valuing unique styles, experiences, identities, ideas and opinions while being welcoming of all people.

#LI-onsite

At Walmart, we offer competitive pay as well as performance‑based bonus awards and other great benefits for a happier mind, body, and wallet. 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…