(usa) Principal, Software Engineer

Walmart Walmart · Retail · Sunnyvale, CA

Principal Software Engineer on the Marketplace Platform team, responsible for architecture, design, and maintenance of advanced frameworks, including scalable ML frameworks, CI/CD pipelines, SDKs, model runtimes, and feature stores. Drives full software development lifecycle, implements distributed architectures for AI/ML integration, and architects/builds intelligent software systems and AI-enhanced applications, including AI agents capable of multi-step reasoning and tool-augmented tasks.

What you'd actually do

  1. Delivers platform capabilities across a technical area or sub-organization, including shared infrastructure, reusable tooling, and scalable ML frameworks (for example, CI/CD pipelines, SDKs, model runtimes, feature stores).
  2. Drives the full software development lifecycle across multiple teams—including coding, testing, CI/CD deployment, observability, monitoring, incident response, and maintenance.
  3. Architects and builds intelligent software systems and AI-enhanced applications that serve millions of customers and associates.
  4. Leads the integration of AI agents capable of multi-step reasoning and tool-augmented tasks using technologies such as Python, Java, JavaScript, Dart, Rust, and C++.
  5. Provides strategic technical guidance and mentorship to Engineers and their teams, fostering engineering excellence and innovation.

Skills

Required

  • Java
  • ReactJS
  • Python
  • JavaScript
  • Dart
  • Rust
  • C++
  • distributed system design
  • cloud-native architecture
  • CI/CD
  • observability
  • monitoring
  • incident response
  • software development lifecycle
  • mentorship

Nice to have

  • model runtimes
  • feature stores
  • GitHub Copilot

What the JD emphasized

  • scalable ML frameworks
  • AI/ML integration
  • AI agents
  • multi-step reasoning
  • tool-augmented tasks

Other signals

  • AI/ML integration
  • AI agents
  • multi-step reasoning
  • tool-augmented tasks
  • model runtimes
  • feature stores