Senior Applied Scientist, Product (AI)

Location: Menlo Park, California, United States, or Seattle, Washington, United States; office-based role.

Base pay: $188,000–$235,000 for Region A, $169,200–$211,500 for Region B, or $159,800–$199,750 for Region C, plus possible bonus and equity awards.

Company

hirify.global is an AI-native performance advertising company operating hirify.global Ads and hirify.global Commerce Media, powered by the CARA compound AI system.

What you will do

• Conduct deep-dive analyses of large ad-auction and user-interaction datasets to extract signals, guide R&D decisions, and improve customer outcomes.
• Build campaign-health metrics and analyze cause-and-effect relationships across system drivers.
• Evaluate internal and external advertising-system components through input/output metrics and diagnose system issues.
• Identify infrastructure and machine-learning improvement opportunities and recommend useful next steps.
• Implement and evaluate algorithms and features with applied scientists, software engineers, and machine-learning engineers.
• Improve the reliability, latency, and efficiency of online prediction and decision systems through experimentation, monitoring, and model refinement.

Requirements

• Advanced degree in Computer Science, Mathematics, or a related field, or industry experience optimizing market prices or machine-learning systems.
• At least 4 years of engineering or applied science experience.
• Proficient verbal and written English communication skills, including contributing to presentations and reports.
• Ability to quickly understand new information and learn technical skills across engineering, machine learning, and data science.
• Track record of building positive relationships with collaborators and stakeholders and working effectively with cross-functional partners in a global company.

Culture & Benefits

• U.S.-based employees receive medical, dental, and vision insurance, a 401(k) plan with company match, disability coverage, life insurance, and well-being benefits.
• U.S.-based employees receive up to 12 scheduled paid holidays per calendar year and one Thrive Day off per quarter; all employees receive Flexible Time Off.
• Possible bonus and equity awards are determined by performance and applicable plan terms.
• Values include humility, continuous growth, creating real customer value, and proactive collaboration.

Hiring process

• Interview participation must follow the AI Use in Interviews Policy; candidates should not use AI assistance unless a round specifically assesses AI.
• Applicants acknowledge that they have reviewed the Candidate Privacy Notice.