Senior Machine Learning Engineer, Ads Forecasting & Scenarios
$217K–$303K
Remote - United States · Remote · Senior · Full-time · Posted Jun 26, 2026
About the job
Build and operate machine-learning forecasting and scenario models that help advertisers compare campaign options and make investment decisions on Reddit.
What you'll do
- Lead forecasting and scenario-modeling projects from problem formulation through deployment and iteration.
- Model campaign outcomes across budgets, bids, audiences, objectives, inventory, demand, and predicted response; evaluate forecast accuracy and uncertainty.
- Operate and improve production models and pipelines, using mature outcomes and experiments to refine predictions.
What they ask for
- Experience independently designing, shipping, and improving predictive ML systems in advertising or a similarly complex domain.
- Strong foundations in statistical learning, probability, and optimization, with experience using large-scale behavioral or transactional data.
- Practical experience in forecasting, response prediction, probabilistic modeling, multitask learning, or transfer learning.
- Strong programming and software engineering skills, including building and operating production ML pipelines and services.
Nice to have
- Experience with demand, supply, or inventory forecasting; auction and investment modeling; scenario evaluation; reach and audience estimation; or probabilistic and response modeling.
Pay
$216,700 — $303,400 USD base salary
AI focus
Develop machine-learning models for advertising forecasts, campaign scenarios, response prediction, and investment planning.
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