Machine Learning Scientist III (Search and Personalization)

Location: San Jose, California, United States

Salary: $149,000–$208,500 annual total cash range; potential performance-based pay up to $238,500.

Company

hirify.global is a global travel company connecting travelers, partners, and advertisers through consumer brands, B2B services, and travel advertising.

What you will do

• Design and deploy end-to-end machine learning model pipelines for ranking, recommendations, search, and personalization.
• Develop scalable data pipelines, data quality checks, and model monitoring for reliable production ML systems.
• Translate business needs into well-scoped machine learning projects with product, analytics, and engineering partners.
• Communicate data-driven findings and influence product and technical decisions.
• Use A/B testing and offline/online evaluation frameworks to measure model impact and guide improvements.

Requirements

• Bachelor’s degree in Computer Science or a related technical field, or equivalent professional experience.
• 5+ years of relevant professional experience applying machine learning or statistical modeling to real business problems.
• Experience with end-to-end model development, from data exploration through evaluation and deployment.
• Proficiency in Python and machine learning frameworks and libraries.
• Ability to define ML tasks, design model and data structures including APIs and data models, and own solutions within a product or service area.
• Experience applying AI/ML concepts to real-world products with attention to safety and reliability.

Nice to have

• Graduate degree in Computer Science, Statistics, Machine Learning, Operations Research, or a related quantitative field.
• Production experience with ranking and recommendation modeling.
• Experience with monitoring, alerting, retraining, model governance, robustness, and fairness.
• Experience designing scalable ML architectures, feature stores, and low-latency, highly available systems.
• Familiarity with natural language search and agentic workflows.

Culture & Benefits

• Collaborative work with product managers, engineers, analysts, and machine learning scientists.
• Medical, dental, and vision coverage.
• Paid time off and an Employee Assistance Program.
• Wellness and travel reimbursement, travel discounts, and IATAN membership.
• Inclusive and accessible recruiting experience with accommodation support.