Principal, Software Engineer

Walmart•Bentonville, AR

4d•$110,000 - $286,000

About The Position

Position Summary... We are seeking a hands-on Principal Engineer to architect the next generation of our Membership Ecosystem, pivoting our services toward an Agentic AI-driven future. You will be the technical catalyst who balances high-level strategic orchestration with deep-code mentorship, driving a culture of engineering excellence where ROI-driven architecture and rapid experimentation are the baseline for success. What you'll do... Principal Software Engineer Company Description Imagine working in an environment where you can make life easier for hundreds of millions of people and put a smile on their face. That is what we do at Walmart Global Tech. We are a team of 15,000+ software engineers, data scientists, and service professionals within Walmart, the world’s largest retailer, delivering innovations that improve how our customers shop and empower our 2.2 million associates. https://careers.walmart.com/technology Walmart’s Values Service to the customer Respect for the individual Strive for excellence Act with integrity https://careers.walmart.com/values About the team: The W+ team leads the design and development of scalable, cloud-native AI-powered systems that enhance operational reliability and performance. This team drives technical strategy and execution across platforms, ensuring architectural integrity and alignment with enterprise standards. Members focus on continuous improvement by automating processes, optimizing system scalability, and fostering operational excellence. Collaboration and mentorship are key, as the team supports knowledge sharing and high-quality delivery. With expertise in AI agents, reliability engineering, and payments industry solutions, the W+ team plays a critical role in advancing innovative technologies that meet business objectives and customer needs.

Requirements

BS/MS degree in Computer Science, Engineering, or a related subject
10+ years of professional experience in various elements of full stack software development – native mobile, web front end, back end, and hands-on coding experience in the past
Experience with a consumer facing app and ecommerce or retail shopping
Hands-on experience building scalable backend systems and platforms
Must haves: Experienced Architect, providing solutions based on large enterprise architecture formed with microservices
Mastery with Java SDK, Services, and various methods of background processing
Experienced with NoSQL Databases. MongoDB and CosmosDB preferred
Experience with Apache Kafka
Experience working with remote data via REST, JSON, GraphQL, and the HTTP protocol
Experienced integrating data sources, APIs and webservices external to the enterprise infrastructure
Experience with analysis of memory issues such as memory leaks using memory analyzers tools (DDMS, MAT)
Option 1: Bachelor's degree in computer science, computer engineering, computer information systems, software engineering, or related area and 5 years’ experience in software engineering or related area.
Option 2: 7 years’ experience in software engineering or related area.

Nice To Haves

Experience working with an orchestration Layer and GraphQL
Experience operating in an Agile environment and using tracking tools like Jira
Experience with Google Play APIs: Maps, Location, and Cloud Messaging
Experience with third-party libraries and APIs
Working knowledge of the general mobile landscape, architectures, trends, and emerging technologies
Solid understanding of the full mobile development life cycle and writing readable, maintainable, performant object-oriented code
Experience working with Kotlin, Coroutines, MVVM, MVVM Clean, View Models, Repository Design pattern, and other architectures
Master’s degree in computer science, computer engineering, computer information systems, software engineering, or related area and 3 years' experience in software engineering or related area.
We value candidates with a background in creating inclusive digital experiences, demonstrating knowledge in implementing Web Content Accessibility Guidelines (WCAG) 2.2 AA standards, assistive technologies, and integrating digital accessibility seamlessly.
The ideal candidate would have knowledge of accessibility best practices and join us as we continue to create accessible products and services following Walmart’s accessibility standards and guidelines for supporting an inclusive culture.

Responsibilities

AI & Intelligent Automation Drive the Future: Lead the development of Agentic AI-powered applications that move beyond static logic to dynamic orchestration.
Tooling Excellence: Integrate modern AI tools into the SDLC to accelerate developer velocity and eliminate "toil."
ROI-Driven Infrastructure & Security Cost-Aware Architecture: Define architectural standards where compute and storage costs are mapped directly to product performance and user value.
Security by Design: Ensure that as we scale our microservices and data pipelines, security and compliance (PII/Data Sovereignty) are baked into the core infrastructure.
Scalable Data Orchestration High-Fidelity Pipelines: Architect robust data orchestration layers that handle massive real-time events via Kafka and NoSQL, ensuring data is actionable for both business logic and AI models.
Unified APIs: Lead the evolution of our GraphQL and REST orchestration layers to support a seamless full-stack experience across Web and Native Mobile.
Culture of Excellence & Experimentation The "Bar-Raiser": Set the gold standard for engineering excellence. You foster a culture where engineers take as much pride in code efficiency and latency as they do in functionality.
Rapid Experimentation: Build the infrastructure required to unlock high-velocity A/B testing, moving from hypothesis to "production-proven" in record time.
Cross-Functional "Multiplier" The Bridge: Partner with Product, Program, and Business leadership to translate ambiguous business goals into crisp, deliverable technical roadmaps.
Mentorship: You are a coach first. You spend time in code reviews and pair programming sessions to elevate the technical depth of the entire organization.

Benefits

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 voting.
Other benefits include short-term and long-term disability, company discounts, Military Leave Pay, adoption and surrogacy expense reimbursement, and more.
You will also receive PTO and/or PPTO that can be used for vacation, sick leave, holidays, or other purposes.
The amount you receive depends on your job classification and length of employment.
It will meet or exceed the requirements of paid sick leave laws, where applicable.
For information about PTO, see https://one.walmart.com/notices.
Live Better U is a Walmart-paid education benefit program for full-time and part-time associates in Walmart and Sam's Club facilities.
Programs range from high school completion to bachelor's degrees, including English Language Learning and short-form certificates.
Tuition, books, and fees are completely paid for by Walmart.
Eligibility requirements apply to some benefits and may depend on your job classification and length of employment.
Benefits are subject to change and may be subject to a specific plan or program terms.
For information about benefits and eligibility, see One.Walmart.