Head of Machine Learning (AI)

TL;DR

Head of Machine Learning (AI): Leading the ML modeling stack for hirify.global Commerce Media (MCM), focusing on core CTR/CVR and retrieval models to drive ad spend and revenue for commerce media customers, with an accent on designing, shipping, and maintaining production ML across multiple platforms. Focus on technical strategy, scaling ML infrastructure, and ensuring reliability of ML in production.

Location: This role is based in Menlo Park, California, United States. Candidates must be authorized to work in the United States.

Salary: $232,000–$300,000 USD

Company

hirify.global is a product company building powerful AI advertising solutions and a planet-scale machine learning platform to democratize access to advanced AI.

What you will do

• Lead technical strategy and direction for MCM ML, building next-generation recommendation ML architecture.
• Own the end-to-end model lifecycle (design, offline eval, deployment, ramp, monitoring) for production models.
• Drive initiatives to scale ML infrastructure to support millions of model trainings.
• Set experimentation and rollout standards, including A/B test design and principled go/no-go decisions.
• Partner cross-functionally with Product, Strategic Growth, Business Development, Infra, Data Science, and Engineering.
• Manage and grow ML experts in the team, providing technical guidance, performance feedback, and career development.

Requirements

• 7+ years in applied ML, especially in state-of-the-art recommendation modeling, including shipping large-scale ranking, transformer/embedding-based CTR/CVR, and retrieval models.
• Experience owning ML systems end-to-end—data, modeling, ML infra, and production monitoring.
• Strong experimentation experience, including designing A/B tests and interpreting noisy results.
• Fluent in Python and modern ML frameworks (e.g., TensorFlow or equivalent) and comfortable working with large-scale data and cloud-based infra.
• 5+ years of management or tech lead experience leading a team of 7+ engineers.
• Work authorization: For United States Residents Only.

Culture & Benefits

• Competitive benefits package focused on employee well-being and inclusion.
• Values include leading with humility, an uncapped growth mindset, creating real value, and going further together.
• Commitment to fostering a diverse workforce and a culture of inclusion and belonging.
• Opportunities for continuous learning, growth, and improvement.