Software Engineer III – Fullstack

Position Summary

Building the right technology foundation for Infrastructure & platforms is vital to success at the scale of Walmart. Our team builds and maintains the foundational technologies that support the tech organization. Included in this are data platforms, enterprise architecture, Dev Ops, cloud computing, and infrastructure. All of these products and services are supported by scalable and powerful infrastructure, ensuring a secure and seamless employee and customer experience across stores, digital channels, and distribution centers.

• Design, develop, and maintain scalable backend services and APIs using Java, Node.js (Type Script), React, Service Now and Python to support AI-driven web and conversational applications

• Build and enhance user-facing web applications using React, collaborating with designers and product managers to deliver intuitive and performant experiences

• Implement and operate real-time conversational and search capabilities
  , supporting superagent and virtual assistant experiences through backend orchestration and service integration

• Integrate backend systems with ML and GenAI services
  , working closely with ML engineers to ensure reliable, observable, and production-ready integrations

• Design and evolve service contracts, data models, and workflows across microservices and event-driven architectures

• Contribute to system reliability, scalability, and performance
  , applying best practices in caching, concurrency, error handling, and capacity planning

• Write high-quality, well-tested code
  , participate actively in code reviews, and uphold engineering best practices across backend and frontend components

• Collaborate cross-functionally with product managers, designers, ML engineers, and other developers to translate business requirements into technical solutions

• Participate in production support and on-call rotations
  , helping diagnose issues, resolve incidents, and implement long-term fixes

• Continuously improve developer productivity and system quality by adopting appropriate tools, frameworks, and engineering practices

• 3+ years of professional software engineering experience
  , with a strong emphasis on backend development and full-stack delivery in production environments

• Strong backend development experience in Java/Spring Boot, Node.js/Type Script, and/or Python

• Hands-on experience building modern web applications using React
  , with a solid understanding of frontend fundamentals, state management, and API-driven UI development

• Hand-on experience in Service Now and knowledgeable on Service Now Modules

• Experience building and operating distributed systems
  , including microservices, asynchronous processing, and data-intensive workflows

• Exposure to real-time systems
  , such as conversational interfaces, chatbots, search, or decision-support platforms, with an understanding of latency and reliability considerations

• Knowledge on OCR is a plus

• Solid API design skills
  , including RESTful APIs, service contracts, versioning, and integration patterns

• Experience integrating with AI/ML or GenAI services
  , focusing on backend orchestration, reliability, and performance rather than model development

• Working knowledge of data storage systems
  , including relational and No
  
  SQL databases, and an understanding of trade-offs in data modeling and access patterns

• Understanding of security fundamentals
  , including authentication, authorization, and secure API development

• Experience with observability tools
  , including logging, metrics, and basic tracing, to support debugging and production readiness

• Strong problem-solving and debugging skills
  , with the ability to work across backend and frontend layers to diagnose issues

• Effective communication and collaboration skills
  , with a willingness to learn, give feedback, and grow within a team-oriented environment

• A sense of ownership and accountability
  , with a bias toward writing clean code, improving systems incrementally, and delivering customer value

Option 1:
Bachelor's degree in computer science, computer engineering, computer information systems, software engineering, or related area and 2 years’ experience in software…