Founding Machine Learning Engineer, Quality Intelligence (AI)

Location: San Francisco, United States; on-site

Salary: $200,000–$300,000 per year, plus equity and bonus

Company

hirify.global is an applied research lab building data and evaluation solutions for foundation model development.

What you will do

• Build ML and data systems for measuring quality across complex human data workflows.
• Develop systems for expert matching, quality prediction, and anomaly detection.
• Build evaluation infrastructure for tasks, reviewers, projects, and data deliveries.
• Convert messy real-world signals into models, metrics, and product improvements.
• Partner with engineers, domain experts, and operators to improve how high-quality data is created and reviewed.
• Own high-impact systems from early design through production deployment.

Requirements

• 3–6 years of relevant experience.
• Strong software engineering background with experience shipping production systems.
• Experience with applied ML, ranking, recommendations, search quality, marketplace systems, trust and safety, fraud, or data quality systems.
• Strong data intuition and the ability to work with messy, ambiguous real-world signals.
• Comfort working across backend systems, data pipelines, ML models, and internal tools.
• Ability to move quickly in a high-ownership, fast-changing environment, with strong attention to quality, precision, and customer impact.

Culture & Benefits

• Founding-level ownership and the opportunity to architect core infrastructure systems.
• Meaningful equity and opportunities to lead major technical initiatives.
• Collaboration with engineers, researchers, operators, domain experts, and users.
• Work on production systems that directly support frontier AI model development.