Principal, Software Engineer
Location
Sunnyvale, CA
Job Type
Full-time
Category
other-general
Posted
June 18, 2026
**Position Summary...**
**What you'll do...**
Job Description
As a Principal Engineer, you will act as a **hands-on technical leader and architect** for the Marketplace Orders and Returns platform. This role requires **deep technical expertise and strong engineering judgment** , with a focus on **platform engineering** to build scalable, resilient, and extensible systems across both backend and frontend layers.
You will drive architectural excellence, evaluate and adopt modern technologies, and solve complex problems across a distributed, high-scale environment while leading through influence across teams.
**About the Team:**
Marketplace Engineering team is at the forefront of building core platforms and services to enable Walmart to deliver vast selection at competitive prices and with best-in-class customer experience by enabling third-party sellers to the marketplace platform, sell and manage their products to our customers on walmart.c...
**What you'll do...**
Job Description
As a Principal Engineer, you will act as a **hands-on technical leader and architect** for the Marketplace Orders and Returns platform. This role requires **deep technical expertise and strong engineering judgment** , with a focus on **platform engineering** to build scalable, resilient, and extensible systems across both backend and frontend layers.
You will drive architectural excellence, evaluate and adopt modern technologies, and solve complex problems across a distributed, high-scale environment while leading through influence across teams.
**About the Team:**
Marketplace Engineering team is at the forefront of building core platforms and services to enable Walmart to deliver vast selection at competitive prices and with best-in-class customer experience by enabling third-party sellers to the marketplace platform, sell and manage their products to our customers on walmart.c...