Senior Machine Learning Engineer, App Ads

Details

Reddit is a community of communities built on shared interests, passion, and trust and is home to open and authentic conversations on the internet. Every day, Reddit users submit, vote, and comment on the topics they care most about. With 100,000+ active communities and approximately 101M+ daily active unique visitors, Reddit is one of the internet’s largest sources of information.

The App Ads Team develops and maintains a diverse set of machine learning models responsible for predictions regarding user conversions after engaging with Reddit. These models are critical to optimizing advertising effectiveness and driving business growth. The team is composed of software engineers, product managers, data scientists, and ads experts.

Responsibilities

• Develop advanced and scalable deep learning models using cutting-edge techniques for critical ML tasks in the app conversions modeling domain.
• Design and implement strategies for signal loss mitigation to ensure prediction accuracy and reliability with incomplete or noisy data.
• Research, implement, test, and launch new model architectures including deep neural networks with advanced pooling and feature interaction architectures.
• Perform systematic feature engineering to convert raw Reddit data (dense & sparse, behavior & content, etc.) into features using FE technologies such as aggregation, embeddings, and sub-models.
• Mentor teammates and act as a cross-functional advocate for the team.
• Contribute meaningfully to team strategy and participate in planning for the future.

Requirements

• 4+ years of experience with industry-level deep learning models.
• 4+ years of experience with mainstream ML frameworks (such as TensorFlow and PyTorch).
• 3+ years of end-to-end experience training, evaluating, testing, and deploying industry-level models.
• 3+ years of orchestrating complicated data generation pipelines on large-scale datasets.
• Experience with ads domain and conversion modeling is a plus.
• Experience with recommendation systems is a plus.

Benefits

• Comprehensive healthcare benefits and income replacement programs
• 401(k) match
• Family planning support
• Gender-affirming care
• Mental health & coaching benefits
• Flexible vacation & Reddit global days off
• Generous paid parental leave
• Paid volunteer time off

Additional Information

• Remote - United States (Reddit has a flexible workforce; candidates may work remotely in any country where Reddit has a physical presence).
• This posting may span more than one career level. In addition to base salary, the role is eligible for equity (RSUs) and potentially commission depending on position.
• Interview recordings for select roles may be recorded, transcribed and summarized by AI (candidates may opt out prior to scheduled interviews). Collected categories include identifiers, professional and employment-related information, audio/video recording, and any other information you choose to share.
• Reddit is an equal opportunity employer and provides reasonable accommodations for qualified individuals with disabilities.

Pay Transparency

• Base pay range (US-based): $216,700 - $303,400 USD
• Final offers are determined by multiple factors including skills, experience, and credentials.