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(USA) Software Engineer III

World's biggest retailer transforming shopping experiences through technology and innovation.
$90,000 - $180,000
Backend
Senior Software Engineer
In-Person
5,000+ Employees
5+ years of experience
AI · Enterprise SaaS

Job Description

Join Walmart's high-impact AI Platform team as a Senior Software Engineer, where you'll be at the forefront of developing next-generation multimodal, LLM-powered experiences. This role offers a unique opportunity to work on projects that combine cutting-edge AI technology with cloud infrastructure and scalable backend engineering, impacting millions of users worldwide.

The AI Platform Engineering team is responsible for building Walmart's core AI platform, which powers intelligent customer experiences at massive scale. Working with modern Python microservices, advanced cloud AI integrations, and top-tier observability practices, you'll be part of a team that's driving Walmart's digital transformation.

As a Senior Software Engineer, you'll lead the design and implementation of backend services for AI/ML workflows, develop LLM integration layers, and ensure robust system performance. The role requires expertise in Python development, cloud platforms, and distributed systems, along with strong testing and security practices.

Walmart offers a comprehensive benefits package including competitive salary ($90,000-$180,000), performance bonuses, stock options, and extensive health benefits. The company's commitment to innovation, combined with its massive scale and impact, makes this an excellent opportunity for engineers passionate about delivering innovative technology with real-world impact.

Working at Walmart means joining a legacy of innovation that started with Sam Walton's vision and continues today through digital transformation. You'll be part of a team that's reinventing retail while maintaining the core mission of helping customers save money and live better.

Last updated 8 days ago

Responsibilities For (USA) Software Engineer III

  • Lead design, implementation, and optimization of backend services for AI/ML workflows
  • Develop and scale LLM integration layers, vector search, and embedding pipelines
  • Oversee robust error handling, retries, caching, and observability (metrics, logging, tracing)
  • Drive code quality through reviews, testing, and CI/CD best practices
  • Partner on system architecture and technical decisions with engineering and product teams

Requirements For (USA) Software Engineer III

Python
JavaScript
  • 5+ years of advanced Python development (async/await); strong API experience (FastAPI, Django, or similar)
  • Proven experience with LLMs, prompt engineering, and vector databases
  • Expertise in cloud platforms (Azure, GCP, or AWS) and distributed systems
  • Strong testing background (pytest/unit/integration); observability tooling proficiency
  • Familiarity with front-end development (JavaScript/HTML) and security best practices for AI platforms
  • Bachelor's degree in computer science, computer engineering, computer information systems, software engineering, or related area and 2 years' experience OR 4 years' experience in software engineering

Benefits For (USA) Software Engineer III

Medical Insurance
Vision Insurance
Dental Insurance
401k
Equity
Parental Leave
  • Medical, vision and dental coverage
  • 401(k)
  • Stock purchase program
  • Company-paid life insurance
  • Paid Time Off (PTO)
  • Parental leave
  • Family care leave
  • Short-term and long-term disability
  • Company discounts
  • Military Leave Pay
  • Adoption and surrogacy expense reimbursement
  • Education benefits through Live Better U program
  • Performance-based bonus awards

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