(USA) Senior, Software Engineer

Position Summary...

What you'll do...

We’re building the next generation of AI‑powered experiences on smart TVs—think on‑device large‑language‑models, real‑time content understanding, privacy‑preserving audience insights, and interactive generative graphics that transform millions of households to discover, shop, and play. You will be one of the first engineers bridging deep‑learning research with production code on consumer electronics hardware. 

 

About the team:
Walmart's Advertising Technology group enables the connection between supplier brands and retail shoppers at unprecedented scale. We are a highly motivated group of engineers and data scientists, working in an agile group to solve sophisticated and high impact problems. We serve billions of ads requests every month with our high-performance ad servers. There are millions of customers shop on Walmart websites and in stores daily, and advertising helps advertisers bring the best products to our customers. If you want to influence millions of customers on their shopping journeys, we have a role for you.

The AdTech M&R data team is responsible for delivering reporting and measurement for Advertisers to analyze and optimize campaigns. We are a team of data developers and machine learning developers whose strengths are: (1) building scalable data pipelines (2) using machine learning techniques and data science (3) making sense of broadly defined problems through data analysis.

What You’ll Do 

Design & train GenAI models targeting CTV use‑cases: on‑device LLM quantization, multimodal video‑text encoders, and diffusion‑based visual experience generators. 

Deploy to edge environments – optimize PyTorch/TensorFlow models with ONNX‑RT/TVM, Arm NN, or Qualcomm SNPE; own CI/CD pipelines that push updates to millions of TVs. 

Integrate privacy‑enhancing tech such as federated learning, encrypted feature extraction, and PSI to align with global data regulations and Walmart stack. 

Prototype novel user features (e.g., conversational search, generative ad creatives, adaptive picture modes) in collaboration with product, design, and ad‑tech teams. 

Publish & share – file patents, present at CVPR/NeurIPS, mentor junior ML engineers, and contribute to open‑source edge‑AI tooling. 

What you'll bring:

• 5+‚ÄØyears building and shipping ML or DL products (or 2+‚ÄØwith a PhD degree).¬†

• Proven track record in generative models (LLMs, diffusion, transformers, VAEs) and modern CV/NLP stacks.¬†

• C++ / Rust and Python expertise; comfortable refactoring kernels for efficiency on limited‚Äëmemory devices.¬†

• Hands‚Äëon experience with edge inference (TensorRT, CoreML, TVM, ONNX, TFLite, WebGPU, or similar).¬†

• Familiarity with CTV / ACR pipelines (frame grabbers, fingerprinting, video embeddings) or embedded multimedia systems.¬†

• Strong grasp of distributed training (DDP/Horovod) and MLOps (Kubeflow, Airflow, MLFlow, Feature stores).¬†

• Knowledge of data‚Äëprivacy frameworks (FL, DP‚ÄëSGD, HE, SMPC) and ability to translate compliance constraints into code.¬†

• Bachelor‚Äôs or higher in CS, EE, Math, or related field.¬†

Preferred experiences:

• Background in ad‚Äëtech or retail media optimization (incrementally, real‚Äëtime ROAS, auction dynamics).¬†

• Experience optimizing models for ARM Cortex‚ÄëA,‚ÄØNEON, NPU, or VVC ASICs inside smart‚ÄëTV SoCs.¬†

• Contributions to OSS projects in quantization, model compression, or video ML (e.g., bits‚Äëand‚Äëbytes, MLC‚ÄëAI, PyTorch‚ÄëVideo).¬†

• Familiarity with incrementality measurement, attribution, and real‚Äëtime auction dynamics (e.g., bid shading, floor price optimization).¬†

• Working knowledge of data‚Äëprivacy frameworks (FL, DP‚ÄëSGD, HE, SMPC) and ID resolutions (UID2, RampID, SharedID).¬†

• Publications/patents in generative media, multimodal learning, or ACR.¬†

  
  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 expert's 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.

  Flexible, hybrid work:
  We use a hybrid way of working that is primarily in office coupled with virtual when not onsite. Our campuses serve as a hub to enhance collaboration, bring us together for purpose and deliver on business needs. This approach helps us make quicker decisions, remove location barriers across our global team and be more flexible in our personal lives.
  
  Benefits:
  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 valuing unique- unique styles, experiences, identities, ideas, and opinions 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.

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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.

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For information about PTO, see https://one.walmart.com/notices.

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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.

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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.

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For information about benefits and eligibility, see One.Walmart.

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Sunnyvale, California US-04397:The annual salary range for this position is $117,000.00-$234,000.00

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Bentonville, Arkansas US-10735:The annual salary range for this position is $90,000.00-$180,000.00

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Additional compensation includes annual or quarterly performance bonuses.

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Additional compensation for certain positions may also include:

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- Stock

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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 3 years’ experience in software engineering or related area.Option 2: 5 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 1 year's 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...

680 West California Avenue, Sunnyvale, CA 94086-4834, United States of America