Position Summary...
What you'll do...
Role summary:
As a Principal Software Engineer, you will be responsible for designing, implementing and optimizing the core machine learning models that power Walmart ad ranking and optimization systems. You will work closely with Data Science and Product on requirement gathering and problem formulation, execute independently on feature engineering, offline model training and online model testing, lead team discussion on learnings and new technologies, and iterate on model tuning and improvement. By applying sound technical judgment and continuous improvement, you are committed to building reliable and high-performance models that meet customers' needs while advancing Walmart’s technology vision.
About the team:
The mission of Walmart Display Ads is to connect brand owners and shoppers with relevant display ads. We bring brand awareness and rich product information to shoppers and help brand owners grow their business. The Display Ad Serving team builds advanced services with cutting edge technologies, to understand shopper intent and surrounding context, serve relevant ads and optimize campaign performance. The team emphasizes strong project and stakeholder management, continuous improvement, and engineering excellence. It fosters a culture of coaching, problem solving, and innovation to drive impactful results while maintaining operational efficiency and alignment with strategic priorities.
What you'll do:
Collaborate with stakeholders to translate business needs into actionable technical requirements and measurable outcomes.
Collaborate with Data Scientists to prototype new algorithms and build ML model roadmaps.
Build scalable data pipelines for information retrieval and feature engineering.
Apply advanced AI/ML technologies to improve shopper intent understanding, contextual relevance, CTR/CVR predictions, etc.
Extract insights from production data and turn them into model improvement opportunities.
Stay on top of industry trends, and uplift engineering teams on best practice, code optimization, and new technologies.
What you'll bring:
Proficiency in one of the programming languages, Java, Python, C++, etc.
Proven records for training, deploying, evaluating and operating high throughput machine learning algorithms.
Solid understanding of popular machine learning algorithms and hands-on experience of deep learning.
Familiarity with LLM applications in relevance scoring and engagement predictions.
Bachelor's degree in computer science or related fields. Master and PhD are preferred.
AdTech experience is a strong plus.
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. Sunnyvale, California US-11657: The annual salary range for this position is $143,000.00 - $286,000.00 Bellevue, Washington US-11663: The annual salary range for this position is $132,000.00 - $264,000.00 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...
1345 Crossman Ave, Sunnyvale, CA 94089-1114, 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.