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Skills: Data Science, Machine Learning, Supervised Fine-Tuning, Large Language Models, PyTorch
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ABOUT US For over 40 years, 24 Hour Fitness has been a leader in the industry, driven by our mission to help our community live healthier and happier through the transformative power of fitness. With clubs nationwide, we…
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DICK'S Sporting Goods
Retail Cashier
Sunnyvale, California, United States · On-site
$19/hr–$26/hr
Entry level$3.5B raised
At DICK’S Sporting Goods, we believe in how positively sports can change lives. On our team, everyone plays a critical role in creating confidence and excitement by personally equipping all athletes to achieve their drea…
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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…
Position Summary... What you'll do...Role summary: As a Senior Data Scientist at Walmart, you will leverage advanced analytical techniques and domain expertise to identify, develop, and deploy data-driven solutions that …
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Overview Sell luxury homes for an award-winning company! Who are we? Since 1967, Toll Brothers has been building luxury homes and communities in the best locations in the U.S. Today, we’re a Fortune 500 company operating…
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Sign up with Clera and we'll reach out the moment a role actually fits you — no more spraying applications into the void.
$143k–$286k/yr
Full-time
bachelor degree, postgraduate degree
Medical Insurance, Vision Insurance, Dental Insurance, 401(k), Stock Purchase, Company-paid Life Insurance
Posted 52d ago
~40 hrs/week
Responsibilities
Design and scale high-throughput SFT pipelines to train foundation models for instruction following and ranking tasks. Collaborate cross-functionally to optimize model performance and translate complex business challenges into actionable data-driven insights.
Requirements
Requires a degree in a quantitative field with 2-6 years of experience depending on the degree level, or 6 years of general analytics experience. Must have proven expertise in Python, PyTorch, and the deployment of transformer-based machine learning models.
Full job description
Position Summary...
What you'll do...
As a Staff Data Scientist at Walmart, you will leverage advanced analytical techniques and machine learning to transform complex data into actionable business insights. This role requires designing, implementing, and scaling high-throughput supervised fine-tuning (SFT) pipelines to train foundation models to follow user prompts, perform ranking tasks, and optimize training hyperparameters such as learning rate schedules and related configurations.
You will collaborate across functions to identify and evaluate data sources, ensure data quality, and communicate findings through effective visualizations. Your contributions will drive innovation and operational excellence by applying rigorous statistical methods and scalable solutions that align with Walmart's strategic objectives and commitment to delivering customer value.
About the Team
Our team develops foundational models tailored for Walmart's e-commerce platform by leveraging large-scale user interactions to create rich representations of users, products, and search queries. These models power scalable search, advertising, recommendation, and personalization solutions.
Team members apply expertise in data science, machine learning, and software engineering to optimize model performance, training, and deployment. With a strong focus on data quality, advanced analytics, and impactful visualization, the team delivers actionable insights that influence key business outcomes. Cross-functional collaboration drives innovation and enables continuous improvement in data-driven decision-making within a dynamic technology environment.
What You'll Do
Identify and evaluate data sources aligned with business requirements and quality standards.
Design, implement, and scale high-throughput SFT pipelines to train foundation models for instruction following, ranking, and related tasks.
Manage high-quality dataset mixtures and optimize training hyperparameters, including learning rate schedules and other training configurations.
Drive model alignment toward helpfulness, accuracy, and safety through preference optimization techniques and reinforcement learning approaches.
Create clear, insightful visualizations to effectively communicate findings and recommendations to stakeholders.
Translate complex business challenges into data-driven solutions and actionable insights.
Collaborate with cross-functional teams to deploy, monitor, and improve machine learning models in production environments.
Mentor junior team members on analytical methodologies, coding best practices, machine learning techniques, and data storytelling.
What You'll Bring
Proven expertise in data science, including predictive analytics, machine learning algorithms, statistical modeling, and hypothesis testing.
Strong programming skills in Python and experience with data visualization tools such as Matplotlib, Plotly, Tableau, or Power BI.
Hands-on experience designing, training, and deploying machine learning models, with a focus on transformer-based architectures and large language models.
Experience optimizing large-scale training pipelines, including hyperparameter tuning and implementing high-throughput workflows using frameworks such as PyTorch.
Experience applying reinforcement learning methods (e.g., RLHF) for preference optimization, model alignment, and safety-focused applications.
Demonstrated ability to translate complex business requirements into analytical models and actionable business insights.
Excellent verbal and written communication skills, with the ability to present technical findings effectively to both technical and non-technical stakeholders.
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
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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: Bachelors degree in Statistics, Economics, Analytics, Mathematics, Computer Science, Information Technology or related field and 4 years' experience in an analytics related field. Option 2: Masters degree in Statistics, Economics, Analytics, Mathematics, Computer Science, Information Technology or related field and 2 years' experience in an analytics related field. Option 3: 6 years' experience in an analytics or related field
Preferred Qualifications...
Outlined below are the optional preferred qualifications for this position. If none are listed, there are no preferred qualifications.
Data science, machine learning, optimization models, PhD in Machine Learning, Computer Science, Information Technology, Operations Research, Statistics, Applied Mathematics, Econometrics, Successful completion of one or more assessments in Python, Spark, Scala, or R, Using open source frameworks (for example, scikit learn, tensorflow, torch), 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 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.
Related keywords
Data ScienceMachine LearningSFTFoundation ModelsLLMPyTorchRLHFPythonMatplotlibPlotlyTableauPower BITransformer ArchitecturesPredictive AnalyticsStatistical ModelingHyperparameter Tuning
More than 60 years ago, Sam Walton opened the first Walmart in Rogers, Arkansas. Today, we’re a people-led, tech-powered omnichannel retailer dedicated to helping people save money and live better all around the world.
Our 2.1 million associates are the engine behind what we do — serving customers and members in communities spanning 19 countries, in stores and clubs, online and through a supply chain built for speed and scale.
We’re committed to creating clear pathways for associates to learn, grow and advance. Whether you’re starting your first job or bringing years of experience, you’ll find room to grow, learn new skills and build a career with purpose. We’re proud to invest in our people and foster a culture grounded in respect, integrity, service and striving for excellence.
Recognized as a Fortune 100 Best Companies to Work For® (2025) and Great Place To Work®-Certified™ , we’re proud of what we’re building together.
Offices: 702 SW 8th St, Bentonville, Arkansas 72712, US
How many Retail jobs are open in Sunnyvale, CA right now?
There are currently 367 open retail positions in Sunnyvale, CA listed on Clera. New openings are added daily as companies post roles.
Which companies are hiring for Retail roles in Sunnyvale, CA?
Companies currently hiring include Walmart, Costco Wholesale, Apple, Lowe's Companies, Inc., Albertsons Companies, among others. Browse the listings above to see every active employer.
Are there remote or hybrid Retail jobs in Sunnyvale, CA?
Yes — 14 of the 367 open retail positions offer remote or hybrid work (1 remote, 13 hybrid).
How do I apply for Retail jobs in Sunnyvale, CA?
Each listing links directly to the employer's application page. Apply early — fresh listings get the most recruiter attention in the first two weeks.