Staff Software Engineer, Machine Learning (Prediction) – Reddit

  • Science & Engineering
  • Fulltime
  • 1 year ago
  • New York

Job Information

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    No. of Openings 1 opening
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    Job Experience : 2-5 years

Job Description

Reddit is a community of communities where people can dive into anything through experiences built around their interests, hobbies, and passions. Our mission is to bring community, belonging, and empowerment to everyone in the world. Reddit users submit, vote, and comment on content, stories, and discussions about the topics they care about the most. From pets to parenting, there’s a community for everybody on Reddit and with over 50 million daily active users, it is home to the most open and authentic conversations on the internet. For more information, visit

Reddit is continuing to grow our teams with the best talent. This role is completely remote friendly and will continue to be after the pandemic.

We’re evolving and continuing our mission to bring community, belonging, and empowerment to everyone in the world. Providing a delightful and relevant experience to our users applies to our Ads like all of our offerings, and we’re excited to build a product that is best-in-class for our users and advertisers. The year ahead is a busy one – join us!

Ads prediction team is the central team to handle machine learning needs in the ads delivery pipeline. Some examples projects that the team own:

Improve our model through systematic model architecture engineering work including exploring different deep neural network architectures

Systematic feature engineering work to build power features from Reddit’s data with aggregation, embedding, content understanding techniques

Developing highly efficient retrieval ranking models with good balance between model performance and computation efficiency

As a Staff Machine Learning Engineer in the ads prediction team, you will research, formulate and execute on our mission to deliver the right ad to the right user under the right context with data and ML driven solutions.


Building industrial level models for critical ML tasks with advanced modeling techniques

Research, implement, test, and launch new model architectures including deep neural networks with advanced pooling and feature interaction architectures

Research, implement, test, and launch new model architectures to handle retrieval ranking tasks with a good balance between model performance and computation efficiency

Systematic feature engineering works to convert all kinds of raw data in Reddit (dense & sparse, behavior & content, etc) into features with various FE technologies such as aggregation, embedding, sub models, etc.

Be a mentor and cross-functional advocate for the team

Contribute meaningfully to team strategy. We give everyone a seat at the table and encourage active participation in planning for the future.

Required Qualifications:

2+ years of experience with industry-level deep learning models

5+ years of experience with mainstream ML frameworks (such as Tensorflow and Pytorch)

5+ years of end-to-end experience of training, evaluating, testing, and deploying industry-level models

5+ years of experience of orchestrating complicated data generation pipelines on large-scale dataset

Experience with Ads domain is a plus

Experience with recommendation system is a plus


Comprehensive Health benefits

401k Matching

Workspace benefits for your home office

Personal & Professional development funds

Family Planning Support

Flexible Vacation (please use them!) & Reddit Global Days Off

4+ months paid Parental Leave

Paid Volunteer time off

Pay Transparency:

This job posting may span more than one career level.

In addition to base salary, this job is eligible to receive equity in the form of restricted stock units, and depending on the position offered, it may also be eligible to receive a commission. Additionally, Reddit offers a wide range of benefits to U.S.-based employees, including medical, dental, and vision insurance, 401(k) program with employer match, generous time off for vacation, and parental leave. To learn more, please visit

To provide greater transparency to candidates, we share base pay ranges for all US-based job postings regardless of state. We set standard base pay ranges for all roles based on function, level, and country location, benchmarked against similar stage growth companies. Final offer amounts are determined by multiple factors including, skills, depth of work experience and relevant licenses/credentials, and may vary from the amounts listed below.

The base pay range for this position is: $198,200 – $297,300.

Reddit is committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans in our job application procedures. If you need assistance or an accommodation due to a disability, please contact us at

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