Principal, Software Engineer at Walmart in Sunnyvale, California

Job Description:

What you'll do at




Position Summary...




What you'll do...




Job Summary:

We are seeking a highly experienced Principal Engineer specializing in AI Systems to join our team and play a pivotal role in developing our Generative AI platform and its associated services. In this dynamic role, you will work on a variety of initiatives, such as designing secure and robust infrastructure, constructing large-scale distributed training clusters, deploying LLMs on GPU instances for real-time applications, and supporting advanced AI research and development within our public cloud infrastructure.


Collaborating with a team of AI engineers and researchers, you will help shape the future of our platform and aid in designing and implementing essential services.



What you'll do:

• Designing and constructing fault-tolerant infrastructure to support long-running, large-scale training tasks, using containers and checkpointing libraries to maintain reliability despite individual node failures.


• Developing infrastructure for serving extensive ML models in our public cloud.


• Creating technical roadmaps, consulting on objectives and key results across teams, reviewing designs, engaging in and resolving technical discussions, and guiding engineering investments for Core ML.


• Designing and implementing benchmarks to evaluate software system performance within a Generative AI Platform, and providing recommendations on technology selection.


• Developing applications that utilize LLMs and FMs, such as conversational AI.


• Designing and implementing platform capabilities to support MLOps for foundation models.


• Optimizing AI algorithms and models to improve performance, efficiency, accuracy, and scalability, applying techniques like hyperparameter tuning, feature engineering, and model selection to enhance AI system quality and reliability.


• Collaborating with cross-functional teams, working closely with researchers, data scientists, and other stakeholders to comprehend their needs, gather requirements, and develop AI-powered solutions. Ensuring AI models and systems align with regulatory and industry standards by partnering with domain experts.


• Preparing and maintaining technical documentation, reports, and presentations to effectively communicate AI methodologies, results, and recommendations to diverse audiences.


• Staying informed about the latest advancements in AI, machine learning, industry trends, regulatory guidelines, data privacy, and ethical considerations related to AI applications in the Retail domain.

What you'll bring:

• Bachelor's degree in Computer Science, Computer Engineering, or a related technical field


• At least 5 years of experience designing and building distributed computing/HPC and large-scale ML systems


• At least 6 years of experience developing AI/ML algorithms in Python or C/C++


• At least 3 years of experience with the full ML development lifecycle using open-source AI/ML frameworks and public cloud

Preferred Qualifications:

• Master's degree or PhD in Engineering, Computer Science, a related technical field, or equivalent practical experience with a focus on contemporary AI techniques.


• Experience designing large-scale distributed platforms and/or systems in cloud environments such as Azure or GCP.


• Experience architecting cloud systems for security, availability, performance, scalability, and cost.


• Experience delivering very large models through the MLOps life cycle from exploration to serving.


• Experience building GPU clusters in the public cloud with tightly-coupled storage and networking.


• Proficiency with the complete stack for distributed training of large models, including ML compilers, distributed training frameworks, and ML development frameworks such as Pytorch, Tensorflow, Lightning, etc.


• Familiarity with GenAI technology stack, including frameworks for prompt engineering, guardrails for GenAI applications, and LLM fine-tuning.


• Experience working with VectorDBs and other data infrastructure required to efficiently support Generative AI training pipelines and production applications.


• Experience training and maintaining large language models.


• Authored research publications in top peer-reviewed conferences or industry-recognized open-source contributions in the areas of neural networks, distributed training, and SysML.

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 diversity- unique styles, experiences, identities, ideas and opinions - while being inclusive 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 incentive 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 at https://bit.ly/3iOOb1J .


The annual salary range for this position is $168,000.00-$252,000.00


Additional compensation includes annual or quarterly performance incentives.


Additional compensation for certain positions may also include:


- Regional Pay Zone (RPZ) (based on location)


- Stock equity incentives




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 and5 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.




Primary Location...

840 W CALIFORNIA AVE, SUNNYVALE, CA 94086-4828, United States of America



About Walmart



At Walmart, we help people save money so they can live better. This mission serves as the foundation for every decision we make, from responsible sourcing to sustainability-and everything in between. As a Walmart associate, you will play an integral role in shaping the future of retail, tech, merchandising, finance and hundreds of other industries-all while affecting the lives of millions of customers all over the world. Here, your work makes an impact every day. What are you waiting for?


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 diversity- unique styles, experiences, identities, abilities, ideas and opinions- while being inclusive of all people.



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