AI Ranking & Recommendations Engineer (LLMs & RLHF)

Unity South APAC (SEA, ANZ, IND Subcont.); Mountain View (CA); On-site; USD 112,700 - 169,100; Full time

Benefits offered by this job

Comprehensive health, life, and disability insurance

Commute subsidy

Employee stock ownership

Competitive retirement/pension plans

Generous vacation and personal days

Support for new parents

Mental health and wellbeing programs

Job summary

Unity South APAC in Mountain View is seeking PhD graduates for roles in their Vector AI team to enhance machine learning systems for ad relevance and user experience.

This position focuses on creating advanced ranking and recommendation models and requires strong foundations in reinforcement learning and Python programming. A comprehensive benefits package and competitive salary up to $169,100 are offered.

Qualifications

• PhD graduating in 2026 or recent graduate required.
• Strong research foundations in areas like reinforcement learning or optimization.
• Experience with large-scale data and ML systems through internships.

Responsibilities

• Design and evaluate next-generation recommendation models.
• Develop user understanding systems for billions of impressions.
• Apply reinforcement learning to ad bidding strategies.
• Communicate technical findings to diverse stakeholders.

Skills

Recommendation systems

Reinforcement learning

Large-scale data handling

Python programming

Communication skills

Education

PhD in Computer Science or related field

Tools

PyTorch

TensorFlow

Job description

Unity South APAC in Mountain View is seeking PhD graduates for roles in their Vector AI team to enhance machine learning systems for ad relevance and user experience.

This position focuses on creating advanced ranking and recommendation models and requires strong foundations in reinforcement learning and Python programming. A comprehensive benefits package and competitive salary up to $169,100 are offered.