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About the Role

The Modeling team at Quantcast is responsible for Machine Learning (ML) systems, building and maintaining ML products that price millions of bid requests per second in a real-time auction environment to maximize advertiser outcomes. As a Machine Learning Engineer, you will care about the health and maintainability of our systems and the velocity of the engineering teams. You will explore data, research new algorithms, experiment with proof of concepts, and build scalable real-time production systems to tackle company challenges.

Responsibilities

Design, code, test, and debug ML applications and improve large-scale global systems that respond to millions of real-time requests per second efficiently.
Run Machine Learning experiments to test new modeling ideas.
Write clean, efficient, and maintainable code using industry best practices.
Collaborate closely with engineering teams to deliver high-quality ML products.
Participate in code reviews and provide constructive feedback to team members.
Identify performance bottlenecks and optimize system components for enhanced scalability.
Keep up to date with developments in machine learning outside the company.

Requirements

Must be work-authorized in the United States without the need for employer sponsorship.
Candidates must reside within a 60-mile radius of San Francisco, CA.
Fluency in Python, Java or similar programming languages.
Strong skills in mathematics and statistics.
An interest in distributed systems and software design, concurrent algorithms, data structures, and software engineering.

Skills

Machine learning algorithms such as classification, control systems, optimization, clustering, LLMs or recommendation systems.

Location

San Francisco, CA

Work Type

Hybrid

Experience Level

New Grad to 1 year of experience

Salary/Compensations

$151,300 to $178,000

Benefits

Performance bonus
Equity
Comprehensive benefits package

About the Company

At Quantcast, we don't just build advertising technology, we revolutionize how it works. Our AI-powered Demand Side Platform (DSP) connects the world's most ambitious marketers with their ideal audiences across the open internet, delivering results that actually move the needle. Since 2006, we've been the industry's trailblazer, launching the first AI-powered measurement platform for publishers and the first AI-driven DSP. Our AI doesn't just optimize—it delivers the measurable outcomes that matter most to our clients, giving them the competitive edge they need in a crowded marketplace.
We are headquartered in San Francisco with offices around the world.

Equal Opportunity

Quantcast is an Equal Opportunity Employer.
Please see the Applicant Privacy Notice for details on our applicant privacy policy.