Staff Data Scientist (AI)

Location: Sunnyvale, California, United States; home office at 815 Eleventh Ave, Sunnyvale, CA 94089-4731

Annual salary: $143,000–$286,000, plus performance-based bonuses and possible stock compensation.

Company

hirify.global develops data-driven solutions for Walmart’s e-commerce platform, including search, advertising, recommendations, and personalization.

What you will do

• Source and assess data from multiple business domains, ensuring quality and suitability for analysis.
• Translate business problems into scalable, data-driven solutions with cross-functional teams.
• Design, build, validate, deploy, and monitor predictive models using statistical and machine learning techniques.
• Implement autonomous research loops in which AI agents tune hyperparameters, modify training code or architectures, and run experiments against defined objective metrics.
• Automate offline model evaluation and selection to reduce manual experimentation cycles.
• Mentor team members on analytical methods, coding practices, and model development.

Requirements

• Proven expertise in predictive analytics, machine learning algorithms, and statistical hypothesis testing.
• Python proficiency and experience with data visualization tools such as Matplotlib, Plotly, or Tableau.
• Experience assessing, validating, and deploying models in production environments.
• Hands-on experience building or operating agentic or autonomous research systems that iteratively tune hyperparameters or modify training code and architectures with minimal human intervention.
• Experience running automated experimentation against defined objective metrics, including auto-generated evaluation reports and offline best-model selection.
• Ability to translate complex business problems into data-driven solutions using advanced analytical modeling.
• Familiarity with MLOps practices and NLP techniques.
• Effective communication skills for presenting insights and mentoring junior team members.
• Minimum qualification through one of the following: bachelor’s degree in a relevant field plus 4 years of analytics-related experience; master’s degree in a relevant field plus 2 years of analytics-related experience; or 6 years of experience in an analytics or related field.

Nice to have

• Experience in data science, machine learning, or optimization models.
• PhD in Machine Learning, Computer Science, Information Technology, Operations Research, Statistics, or Applied Mathematics.
• Successful completion of assessments in Python, Spark, Scala, or R.
• Experience with open-source frameworks such as scikit-learn, TensorFlow, or Torch.
• Knowledge of WCAG 2.2 AA, assistive technologies, and digital accessibility best practices.

Culture & Benefits

• Full-time employment with medical, vision, dental, life insurance, disability coverage, and 401(k) benefits.
• Paid time off, including sick leave, parental leave, family care leave, bereavement, jury duty, voting leave, vacation, and holidays.
• Performance-based bonus awards, stock purchase benefits, and possible stock compensation.
• Company discounts, military leave pay, and adoption and surrogacy expense reimbursement.
• Live Better U provides Walmart-paid education programs, including tuition, books, and fees for eligible associates.
• Benefits and eligibility depend on job classification and length of employment; the workplace maintains a drug-free policy.