Unity
Senior Machine Learning Engineer, Ads Foundation Modeling
Unity, San Francisco, California, United States, 94199
Senior Machine Learning Engineer, Ads Foundation Modeling
The opportunity
At Unity, we’re committed to building a culture that fosters collaboration and innovation. Within our fast‑paced environment, we’re tackling complex challenges that drive meaningful impact for creators and users across our ecosystem.
Our Foundation Modeling team plays a central role in this effort by developing state‑of‑the‑art conversion rate (CVR) prediction and market price models that power our ad ranking and recommendation systems. These models help advertisers reach the right users at the right time by accurately estimating engagement and conversion likelihood; by leveraging large‑scale behavioral data, creative features, and contextual signals, we continuously improve the relevance and accuracy of our predictions. This drives key outcomes such as higher user engagement, stronger conversion performance, and better return on ad spend—enabling advertisers to achieve their goals while delivering a better experience for users.
We are seeking a highly skilled Senior ML Engineer to drive state‑of‑the‑art bidding optimization systems that enable efficient budget pacing, goal‑aligned automated strategies, continual improvement through experimentation, and sustainable growth for Unity Ads.
What You’ll Be Doing
Design, implement, and maintain high‑performance CTR and CVR prediction models that power ad ranking and recommendation systems.
Build and refine systems for creative understanding and user behavior modeling, enabling more accurate and context‑aware engagement predictions.
Ensure model quality and reliability by continuously monitoring performance, calibrating predictions, and addressing data drift or delayed feedback.
Actively participate and work with other leads to set the long‑term direction for the team, plan and oversee engineering designs and project execution.
Effectively communicate complex technical concepts to non‑engineering stakeholders.
What We’re Looking For
Advanced degree (MS or Ph.D.) in Computer Science, Machine Learning, Statistics, related field, or equivalent practical experience.
5+ years of hands‑on experience building and operating large‑scale Ads delivery and optimization systems.
3+ years of experience building CTR/CVR systems, content understanding, or behavior modeling systems.
Significant experience in one or more general‑purpose programming languages such as Python, Go, Scala, C++ or similar.
Knowledge of metric design, experimentation methodologies, and large‑scale data analysis.
You Might Also Have
Experience designing and productionizing optimization algorithms in an ad serving platform and/or other marketplaces.
Experience with state‑of‑the‑art control systems and reinforcement learning algorithms.
Additional Information
International relocation support is not available for this position.
Life at Unity We offer a wide range of benefits designed to support employees’ well‑being and work‑life balance. You can read more about them on our career page.
Unity is the leading platform to create and grow games and interactive experiences. Creators ranging from game developers to artists, architects, automotive designers, infrastructure experts, filmmakers, and more use Unity to bring their imaginations to life across multiple platforms—from mobile, PC, and console to spatial computing.
As of the third quarter of 2024, more than 70% of the top 1,000 mobile games were made with Unity, and in 2024, Made with Unity applications had an average of 3.7 billion downloads per month.
Unity is a proud equal‑opportunity employer. We are committed to fostering an inclusive, innovative environment and celebrate our employees across age, race, color, ancestry, national origin, religion, disability, sex, gender identity or expression, sexual orientation, or any other protected status in accordance with applicable law. If you have a disability that requires accommodations, please let us know.
Pursuant to the San Francisco Fair Chance Ordinance, we will consider qualified applicants with arrest and conviction records.
This position requires the incumbent to have sufficient knowledge of English to have professional verbal and written exchanges.
Headhunters and recruitment agencies may not submit resumes/CVs through this site or directly to managers. Unity does not accept unsolicited headhunter or agency resumes and will not pay fees to any third‑party agency or company that does not have a signed agreement with Unity.
Your privacy is important to us. Please review our Prospect Privacy Policy and Applicant Privacy Policy. For privacy concerns, contact DPO@unity.com.
Gross pay salary : $165,600—$248,400 USD
Seniority level : Mid‑Senior level
Employment type : Full‑time
Job function : Engineering and Information Technology
Industries : Software Development
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At Unity, we’re committed to building a culture that fosters collaboration and innovation. Within our fast‑paced environment, we’re tackling complex challenges that drive meaningful impact for creators and users across our ecosystem.
Our Foundation Modeling team plays a central role in this effort by developing state‑of‑the‑art conversion rate (CVR) prediction and market price models that power our ad ranking and recommendation systems. These models help advertisers reach the right users at the right time by accurately estimating engagement and conversion likelihood; by leveraging large‑scale behavioral data, creative features, and contextual signals, we continuously improve the relevance and accuracy of our predictions. This drives key outcomes such as higher user engagement, stronger conversion performance, and better return on ad spend—enabling advertisers to achieve their goals while delivering a better experience for users.
We are seeking a highly skilled Senior ML Engineer to drive state‑of‑the‑art bidding optimization systems that enable efficient budget pacing, goal‑aligned automated strategies, continual improvement through experimentation, and sustainable growth for Unity Ads.
What You’ll Be Doing
Design, implement, and maintain high‑performance CTR and CVR prediction models that power ad ranking and recommendation systems.
Build and refine systems for creative understanding and user behavior modeling, enabling more accurate and context‑aware engagement predictions.
Ensure model quality and reliability by continuously monitoring performance, calibrating predictions, and addressing data drift or delayed feedback.
Actively participate and work with other leads to set the long‑term direction for the team, plan and oversee engineering designs and project execution.
Effectively communicate complex technical concepts to non‑engineering stakeholders.
What We’re Looking For
Advanced degree (MS or Ph.D.) in Computer Science, Machine Learning, Statistics, related field, or equivalent practical experience.
5+ years of hands‑on experience building and operating large‑scale Ads delivery and optimization systems.
3+ years of experience building CTR/CVR systems, content understanding, or behavior modeling systems.
Significant experience in one or more general‑purpose programming languages such as Python, Go, Scala, C++ or similar.
Knowledge of metric design, experimentation methodologies, and large‑scale data analysis.
You Might Also Have
Experience designing and productionizing optimization algorithms in an ad serving platform and/or other marketplaces.
Experience with state‑of‑the‑art control systems and reinforcement learning algorithms.
Additional Information
International relocation support is not available for this position.
Life at Unity We offer a wide range of benefits designed to support employees’ well‑being and work‑life balance. You can read more about them on our career page.
Unity is the leading platform to create and grow games and interactive experiences. Creators ranging from game developers to artists, architects, automotive designers, infrastructure experts, filmmakers, and more use Unity to bring their imaginations to life across multiple platforms—from mobile, PC, and console to spatial computing.
As of the third quarter of 2024, more than 70% of the top 1,000 mobile games were made with Unity, and in 2024, Made with Unity applications had an average of 3.7 billion downloads per month.
Unity is a proud equal‑opportunity employer. We are committed to fostering an inclusive, innovative environment and celebrate our employees across age, race, color, ancestry, national origin, religion, disability, sex, gender identity or expression, sexual orientation, or any other protected status in accordance with applicable law. If you have a disability that requires accommodations, please let us know.
Pursuant to the San Francisco Fair Chance Ordinance, we will consider qualified applicants with arrest and conviction records.
This position requires the incumbent to have sufficient knowledge of English to have professional verbal and written exchanges.
Headhunters and recruitment agencies may not submit resumes/CVs through this site or directly to managers. Unity does not accept unsolicited headhunter or agency resumes and will not pay fees to any third‑party agency or company that does not have a signed agreement with Unity.
Your privacy is important to us. Please review our Prospect Privacy Policy and Applicant Privacy Policy. For privacy concerns, contact DPO@unity.com.
Gross pay salary : $165,600—$248,400 USD
Seniority level : Mid‑Senior level
Employment type : Full‑time
Job function : Engineering and Information Technology
Industries : Software Development
#J-18808-Ljbffr