Principal, Software Engineer – GenAI Initiative

Sunnyvale, CA

Principal, Software Engineer – GenAI Initiative

840 W California Ave
Sunnyvale, CA 94086-4828

R-2413760

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$143,000 - $286,000/yr

Regular/Permanent

Salaried

Position Summary...

What you'll do...

Job Description

Walmart Global Tech is at the forefront of AI innovation, leveraging cutting-edge technologies to redefine customer experiences. We are seeking a Principal, Software Engineer with deep expertise in Generative AI, LLMs, and RAG frameworks to lead the design, development, and deployment of advanced AI systems. This role involves architecting scalable solutions, integrating agentic frameworks, and mentoring engineering teams to push the boundaries of AI-driven innovation.

As part of Walmarts Global Sourcing Backend team, you will be building highly scalable and reliable APIs, services and applications which will drive the next generation purchase order management system. You'll independently handle high impact, critical software/systems monitoring issues, troubleshoot business and production issues. As a member of this fast-moving and highly entrepreneurial team, you'll be able to say that you work for the worlds largest retailer and contribute to innovation and development to best-in-class methodologies that impacted perception and drastically changed business as we know it.

About Team:
Focusing on customer, associate and business needs, this team works with Walmart International, which includes more than 5,200 retail units, operating in 23 countries such as Canada, Central America, Chile, China, India, Mexico and South Africa to name a few.

''Immigration sponsorship is not available for this role''

What you'll do:
1. AI Model Development ; Agentic Frameworks:

Design, fine-tune, and deploy Generative AI models with a focus on RAG frameworks to enhance information retrieval and generation.
Develop and optimize LLM-based agents for tasks like knowledge grounding, multi-step reasoning, and decision-making.
Integrate external data sources (e.g., vector databases) with LLMs to build dynamic, context-aware systems.

2. Architecture ; Scalability:

Architect scalable, distributed AI systems with a focus on performance, fault tolerance, and disaster recovery.
Develop detailed design specifications, including modular, extensible, and functional components.
Build MVPs to validate requirements and refine designs iteratively.

3. Collaboration ; Product Integration:

Partner with product teams to integrate AI into customer-facing applications.
Work cross-functionally to design solutions that address both functional and non-functional requirements.

4. Leadership ; Mentorship:

Drive technical direction for large-scale AI initiatives and mentor junior engineers.
Establish best practices for building and maintaining AI-driven systems.

What you'll bring:

Overall 12+ years of experience in machine learning / software engineering, with 2+ years in Generative AI or LLMs.
Strong experience with RAG frameworks, vector search technologies and knowledge grounding techniques.
Expertise in Python, ML frameworks (PyTorch, TensorFlow), and libraries like Hugging Face Transformers.
Proficiency in distributed computing, cloud platforms (GCP, Azure), and scalable architectures.
Familiarity with disaster recovery principles and building resilient, fault-tolerant systems.
Experience with multi-modal models (text, image, video) and advanced optimization techniques (e.g., quantization, distillation).
Experience with Generative AI models (e.g., GPT, Gemini) and their fine-tuning.
Contributions to open-source projects or publications in Generative AI, RAG, or agentic frameworks.
Strong understanding of system design, non-functional requirements, and design patterns.

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 :
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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...

840 W California Ave, Sunnyvale, CA 94086-4828, United States of America

Walmart 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.

Walmart Academy

Grow your skills

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

Financial perks

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

Comprehensive health benefits

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

Wellbeing programs

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

Career growth opportunities

Training, leadership programs, and clear paths to advance.

Learn more

Life at Walmart

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.

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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.

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