Reddit

Staff Machine Learning Engineer, App Ads Modeling

Reddit
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22 hours ago
Remote, United StatesStaff+
H1B sponsor

Base Salary

$230k - $322k/yr

Responsibilities

  • Design and train advanced machine learning models, including deep neural networks and transformers, for Reddit Ads Ranking.
  • Develop and optimize embeddings, contextual signals, and cross-session behavior features.
  • Collaborate with product, infrastructure, and data teams on model deployment, feature serving, training pipelines, and performance analysis.
  • Mentor other machine learning engineers and contribute to modeling best practices across the organization.
  • Shape long-term modeling vision across conversion, app ads, shopping, brand, and related domains.

Requirements

  • At least 7 years of industry experience, including several years in applied machine learning roles.
  • Strong experience with deep learning architectures and machine learning frameworks such as TensorFlow and PyTorch.
  • Strong background in recommendation systems, ads ranking, or similar domains.
  • Experience working with large-scale datasets and complex feature pipelines.
  • Strong problem-solving and experimentation skills.
  • Experience with state-of-the-art models for ads or recommendation systems, such as transformers.
  • Knowledge of recommendation systems or the ads funnel.
  • Track record of delivering high-impact models in production.
  • Ability to collaborate with infrastructure and data teams on feature serving and training pipelines.
  • Preferred qualifications include conversion modeling, app ads, performance or brand ads, ads marketplaces at peer companies, and publications, patents, or industry contributions in applied machine learning or ranking systems.

Benefits

  • 100% remote opportunity, with optional hybrid or onsite work at offices in New York, San Francisco, Los Angeles, and Chicago.
  • Comprehensive healthcare benefits and income replacement programs.
  • 401(k) with employer match.
  • Global benefits supporting workspace, professional development, and caregiving.
  • Family planning support, gender-affirming care, and mental health and coaching benefits.
  • Flexible vacation, paid volunteer time off, and generous paid parental leave.
  • Eligible for equity in the form of restricted stock units; select positions may also be eligible for commission.

Tech Stack

PyTorchTensorFlow

Categories

Reddit

About Reddit

5,001-10,000 employees

Reddit builds a social news and discussion platform organized into user-created forums (“subreddits”) for consumers, creators, and communities. It monetizes primarily through advertising tools for brands and self-serve advertisers, plus a Premium subscription; developers can access data via its API. Founded in 2005 and headquartered in San Francisco, Reddit became a public company on the NYSE in 2024 and hosts over 100,000 active communities.

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