Senior, Data Scientist – Conversational AI at Walmart

Sunnyvale, California, United States

Walmart Logo
Not SpecifiedCompensation
Senior (5 to 8 years)Experience Level
Full TimeJob Type
NoVisa
Retail, TechnologyIndustries

Requirements

  • Master's degree or certification in Machine Learning, Computer Science, Engineering, Mathematics, Statistics or any other related field
  • Extensive experience with NLU/NLP, more recent deep ML models (e.g., Transformers, BERT, Llama, GPTs, Gemini) and safe fine-tuning of these
  • Extensive experience in designing, developing and deploying end-to-end Generative AI systems using transformer-based LLM architectures (both open source and close source)
  • Experience with Python; solid knowledge SQL
  • Hands on experience with classical ML models, test/train/evaluation metrics, key parameters/techniques that affect model performance
  • Understanding of relevant statistical measures such as confidence intervals, significance of error measurements, development and evaluation data sets
  • Experience analyzing conversational data to identify patterns and conducting error/deviation analysis; passion for fixing issues in the data and finding the optimal representation
  • A continuous drive to explore, improve, enhance, automate, and optimize models and products
  • Excellent oral and written communication skills
  • Preferred Qualifications
  • PhD in a relevant field (Machine Learning, Computer Science, Engineering, Mathematics, Physics, Statistics or a related field)
  • Experience developing multimodal solutions for Generative AI and related applications at scale
  • Exposure to real-world, production grade agentic systems
  • Familiarity with LLMs serving optimizations and multi-LoRa
  • Ability to develop experimental and analytic plans for data modeling processes, use of strong baselines, ability to accurately determine cause and effect relations
  • Hands-on expertise in many disparate technologies and the full model lifecycle, typically ranging from data pipelines, data extraction, model training, model serving, labeling tools, ML-ops, ad-hoc tooling and all points in between
  • Strong attention to detail and exceptional level of organization
  • Proven ability to achieve results in a fast paced, highly collaborative, dynamic work environment

Responsibilities

  • Improve and evolve NLU capabilities, taking into account the full conversational context, multi-modal interactions, and an ever increasing list of use cases
  • Make a massive impact on the design, architecture, and implementation of an innovative, mission critical product, driven by data-science
  • Build demos, proof of concepts, create white papers, write blogs, etc., as part of the emerging tech group

Skills

NLP
NLU
Transformers
BERT
Llama
GPT
Gemini
Fine-tuning
Machine Learning

Walmart

Global retail chain offering affordable products

About Walmart

Walmart operates a chain of hypermarkets, discount department stores, and grocery stores, providing a wide variety of products at low prices to everyday consumers, families, and communities. The company combines physical retail locations with an e-commerce platform, allowing customers to shop for groceries, apparel, electronics, and household items both in-store and online. Walmart's efficient supply chain management and large-scale purchasing enable it to maintain affordability, setting it apart from competitors. The company also offers financial services and health and wellness services, including pharmacies and vision centers. Walmart's goal is to save people money and support communities, as demonstrated by its efforts during the COVID-19 pandemic and its commitment to social responsibility, including programs for veterans and military families.

Bentonville, ArkansasHeadquarters
1962Year Founded
$5,515MTotal Funding
IPOCompany Stage
Financial Services, Consumer GoodsIndustries
10,001+Employees

Benefits

PTO: Paid vacation, sick time, personal time and holiday time
10% discount on regularly priced general merchandise and fresh fruits and vegetables
6% 401(k) match to all employees, including hourly workers, after one year
Roth IRA available
Associate Stock Purchase Plan
maximum and eligible preventive care covered at 100%
Health reimbursement plans

Risks

Rising U.S. labor costs could pressure profit margins.
Amazon's grocery delivery expansion threatens Walmart's market share.
Fintech investments expose Walmart to financial regulatory risks.

Differentiation

Walmart's omnichannel strategy integrates physical and online retail seamlessly.
The company offers a wide range of products at consistently low prices.
Walmart's commitment to community support enhances its brand reputation.

Upsides

Walmart's investment in fintech expands its financial services offerings.
Robotics integration in distribution centers boosts operational efficiency.
Culturally themed product lines attract diverse customer segments.

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