Senior Machine Learning Engineer, Ads

Posted 2 days ago

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About the role

  • Machine Learning Engineer developing and deploying machine learning models for ad ranking, bidding, and optimization at Reddit Ads. Engaging in full lifecycle ML system ownership and cross-functional collaboration.

Responsibilities

  • Design, build, and deploy industrial-level machine learning models to solve critical problems in ad ranking, bidding, and optimization.
  • Take full ownership of the ML lifecycle, from ideation and research to building scalable serving systems and maintaining models in production.
  • Perform systematic feature engineering to transform raw, diverse data into high-quality features that drive model performance.
  • Work closely with product managers, data scientists, and engineers to translate business challenges into effective ML solutions.
  • Improve the reliability and stability of our ML systems by building robust monitoring, alerting, and automated retraining pipelines.
  • Research new algorithms, stay up-to-date with state-of-the-art ML techniques, and contribute to the team’s strategy and roadmap.

Requirements

  • Experience working in the Ads domain
  • At least 3-5+ years of end-to-end experience in training, evaluating, and deploying machine learning models in a production environment.
  • Proficient in one or more general-purpose programming languages (e.g., Python, Scala) and have a solid understanding of software development best practices.
  • Hands-on experience with a major machine learning framework (e.g., TensorFlow, PyTorch) and a deep understanding of core ML concepts and algorithms.
  • Proven ability to work effectively with cross-functional teams, including product managers and data scientists, to translate business needs into technical solutions.
  • Track record of using machine learning to drive key performance indicator (KPI) wins and solve complex, real-world problems.

Benefits

  • Global Benefit programs that fit your lifestyle, from workspace to professional development to caregiving support
  • Family Planning Support
  • Gender-Affirming Care
  • Mental Health & Coaching Benefits
  • Comprehensive Medical Benefits & Health Care Spending Account
  • Registered Retirement Savings Plan with matching contributions
  • Income Replacement Programs
  • Flexible Vacation & Paid Volunteer Time Off
  • Generous Paid Parental Leave

Job type

Full Time

Experience level

Senior

Salary

Not specified

Degree requirement

Bachelor's Degree

Tech skills

PythonPyTorchScalaTensorflow

Location requirements

RemoteCanada

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