Principal, Software Engineer

Walmart; Sunnyvale (CA); On-site; USD 143,000 - 286,000; Full time

Benefits offered by this job

401(k) match

Stock purchase plan

Paid time off

Health benefits

Job summary

Walmart Global Tech in Sunnyvale, CA is seeking a Principal Software Engineer to lead the technical vision for AI-powered seller support experiences. You will shape scalable, distributed systems and agentic AI workflows that reduce resolution time and improve customer satisfaction for Walmart Marketplace.

Collaborate with Engineering, Product, Data Science, and Operations to define architecture, mentor engineers, and deliver highly available platforms powering intelligent automation across case

Qualifications

• 13+ years of professional software engineering experience with Java, Python, AI solutions, big data, Cosmos DB, and large-scale systems.
• Experience in platform engineering leadership and cloud-native architectures.
• Proven full SDLC experience including CI/CD and incident response.

Responsibilities

• Define the technical strategy and architecture for large-scale Marketplace Support platforms.
• Lead the design and implementation of AI/LLM-powered workflows and automation.
• Build resilient, scalable distributed systems handling millions of seller interactions.
• Drive engineering excellence through architecture reviews and mentorship.
• Partner with Product, Data Science, and Operations to translate business problems into platform capabilities.
• Influence roadmaps across organizations and lead cross-functional initiatives.
• Champion platform reliability, performance, security, and operational excellence.
• Translate business needs into actionable technical requirements and metrics.
• Foster continuous improvement through innovation and knowledge sharing.

Skills

Java

Python

AI solutions

Big data

Azure Cosmos DB

Distributed systems

Cloud-native

Technical leadership

Mentoring engineers

Job description

Position Summary...

What you'll do...

Immigration sponsorship is not available for this role. Applicants must be authorized to work for any employer in the United States without current or future visa sponsorship.
This is a full-time onsite role based in Sunnyvale, CA ; remote and hybrid options are not available. Role Summary:
The Principal, Software Engineer leads the technical vision and architecture for the next generation of AI-powered seller support experiences at Walmart Marketplace. You will drive the design of scalable, distributed systems and agentic AI workflows that empower support associates and sellers, reducing resolution time while improving customer satisfaction.
You will partner across Engineering, Product, Data Science, and Operations to define long-term architecture, mentor senior engineers, and deliver highly available platforms that power intelligent automation across case management, guided workflows, and seller support.
About the Team:
The Global Seller Support team delivers scalable platform capabilities and innovative technical solutions to empower sellers worldwide. This team develops AI-powered platforms and intelligent automation that enhance Walmart Marketplace support experiences. Engineers address complex, large-scale challenges using cloud-native technologies, Generative AI, and modern software engineering practices. The team focuses on creating reliable, high-impact products that support one of the world’s largest eCommerce ecosystems, driving continuous improvement and technical excellence to meet evolving business and customer needs. What You'll Do:

• Definethetechnicalstrategyandarchitectureforlarge-scaleMarketplaceSupportplatforms.
• LeadthedesignandimplementationofAI/LLM-poweredagenticworkflowsandintelligentautomation.
• Buildresilient,scalable,andobservabledistributedsystemshandlingmillionsofsellerinteractions.
• Driveengineeringexcellencethrougharchitecturereviews,designstandards,andtechnicalmentorship.
• PartnerwithProduct,DataScience,andOperationstotranslatebusinessproblemsintoscalableplatformcapabilities.
• Influenceengineeringroadmapsacrossmultipleorganizationsandleadcross-functionaltechnicalinitiatives.
• Championplatformreliability,performance,security,andoperationalexcellence.
• Collaboratewithstakeholderstotranslatebusinessneedsintoactionabletechnicalrequirementsandmeasurablesuccessmetrics.
• Fostercontinuousimprovementthroughinnovation,knowledgesharing,andadoptionofemergingtechnologies.

What You'll Bring:

• 13+ years of professional software engineering experience, with deep expertise in Java, Python, AI solutions, big data platforms, Azure Cosmos DB, and large-scale rack system development.
• Extensive experience in platform engineering leadership, delivering scalable, cloud-native architectures and reusable tooling.
• Proven ability to drive full software development lifecycle, including coding, testing, CI/CD deployment, and incident response.
• Expertise in designing distributed systems optimized for real-time data processing and AI/ML integration.
• Strong technical judgment with a focus on architectural decision-making and long-term system evolution.
• Proficiency in AI agents, model-driven design, and cloud computing architecture.
• Demonstrated leadership in mentoring engineers and fostering engineering excellence.
• Effective collaboration and communication skills with cross-functional teams.
• Commitment to continuous improvement and innovation in engineering processes.

Preferred Experience and Qualifications:

• E-commerce domain experience strong preferred.

About Walmart Global Tech: Imagine working in an environment where one line of code can make life easier for hundreds of millions of people. That's what we do at Walmart Global Tech. We're a team of software engineers, data scientists, cybersecurity experts and service professionals within the world's leading retailer who make an epic impact and are at the forefront of the next retail disruption. People are why we innovate, and people power our innovations. We are people-led and tech-empowered. We train our team in the skillsets of the future and bring in experts like you to help us grow. We have roles for those chasing their first opportunity as well as those looking for the opportunity that will define their career. Here, you can kickstart a great career in tech, gain new skills and experience for virtually every industry, or leverage your expertise to innovate at scale, impact millions and reimagine the future of retail.

Walmart’s culture is a competitive advantage, and it’s fostered by being together. Working together in person allows us to collaborate, align quickly and innovate with greater speed . We use our campuses to create purposeful connections rooted in deepening understanding and investing in the development of our associates .

Benefits:
Beyond our great compensation package, you can receive incentive awards for your performance. Other great perks include 401 (k) match, stock purchase plan, paid maternity and parental leave, PTO, multiple health plans, and much more.

Equal Opportunity Employer:
Walmart, Inc. is an Equal Opportunity Employer - by choice. We believe we are best equipped to help our associates, customers, and the communities we serve live better when we really know them. That means understanding, respecting, and valuing unique styles, experiences, identities, ideas and opinions while being welcoming of all people.

The above information has been designed to indicate the general nature and level of work performed in the role. It is not designed to contain or be interpreted as a comprehensive inventory of all responsibilities and qualifications required of employees assigned to this job. The full Job Description can be made available as part of the hiring process .
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 .
The annual salary range for this position is $143,000.00 - $286,000.00 Additional compensation includes annual or quarterly performance bonuses. Additional compensation for certain positions may also include :
- Stock

Minimum Qualifications...

Outlined below are the required minimum qualifications for this position. If none are listed, there are no minimum qualifications.

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.

Preferred Qualifications...

Outlined below are the optional preferred qualifications for this position. If none are listed, there are no preferred qualifications.

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.

Primary Location...

1375 Crossman Ave, Sunnyvale, CA 94089-1114, United States of AmericaWalmart and its subsidiaries are committed to maintaining a drug-free workplace and has a no tolerance policy regarding the use of illegal drugs and alcohol on the job. This policy applies to all employees and aims to create a safe and productive work environment.

Walmart is committed to maintaining a drug-free workplace and has a no tolerance policy regarding the use of illegal drugs and alcohol on the job. This policy applies to all employees and aims to create a safe and productive work environment.

Benefits you’ll enjoy

Discount Card

Get 10% off

Walmart associates are eligible for a 10% discount card on most regular-priced items and fresh produce in-store and on select items at Walmart.com. Eligible after 90 days of employment.

Live Better U

100% covered

Earn a degree or in-demand skills certificates with no debt- Walmart covers 100% of tuition and books. Live Better U offers 60+ programs for Associates to pursue their dreams.

Ready to grow your career? Walmart Academy offers job-specific retail training and leadership courses to help Associates reach their career goals.

Enjoy 401(k) matching and stock purchase plans.

Paid time off

Take a break as needed for vacation, sick leave, holidays, parental leave, and more

Medical, dental, vision, and wellness programs for you and your family

Access mental health resources and assistance programs for life’s challenges

Training, leadership programs, and clear paths to advance.

Imagine a workplace surrounded by innovation.At Walmart’s new Home Office in Bentonville, Arkansas, we’re redefining what it means to work at a global leader.

Set on 350 acres of thoughtfully revitalized land, our new campus seamlessly integrates the charm of Northwest Arkansas with cutting edge design and technology. From biking trails and outdoor courtyards to flexible, tech-enabled workspaces, every detail reflects our commitment to sustainability, connection, and culture.

With amenities like on-site childcare at our Little Squiggles Children’s Enrichment Center, the Walton Family Whole Health & Fitness Center, and a vibrant food hall featuring local and international favorites, we’re creating a space where work-life balance isn’t just a goal—it’s a reality.
Beyond the campus, Bentonville offers a dynamic lifestyle with world-class dining, art at the Crystal Bridges Museum, and countless outdoor activities.

Whether you’re exploring High South cuisine, enjoying live performances at our new amphitheater, or cycling the Razorback Greenway, you’ll experience the perfect blend of small-town charm and big-city amenities.

Join us at Walmart and grow your career alongside a community that feels like home.

This isn’t just a workplace—it’s a destination for leaders eager to make a difference.