Realtime ML Engineer — Scale High-Frequency Systems + Equity

Company: Quantcast
Apply for the Realtime ML Engineer — Scale High-Frequency Systems + Equity
Location: London
Job Description:

Quantcast in the United Kingdom is seeking a Machine Learning Engineer to join the Modeling team. You will help design, implement, and maintain high-frequency ML infrastructure that prices millions of advertising opportunities per second in a real-time auction.

You’ll explore data, run experiments, collaborate with senior scientists and engineers, and write clean, scalable code that improves model quality and system performance.

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Posted: October 2nd, 2026