Senior Software Engineer - Ads Experimentation

Reddit is a vibrant community of communities, thriving on shared interests, passion, and trust. With over 100,000 active communities and around 101M daily active visitors, Reddit is a leading source of open and authentic conversations on the internet.

As a revenue-driven company, Reddit’s advertising platform is where we differentiate ourselves, linking advertisers with engaged audiences within our passionate communities. The Ads marketplace is a dynamic environment, where millions of interactions occur each second, creating challenges around extracting useful signals to guide product development and decisions scientifically.

The Ads Experimentation Platform (AEXP) team is at the forefront of building tools that empower engineers and scientists to test new products and verify innovative ideas within the ads marketplace effectively. If you're curious about sophisticated topics like Budget Cannibalization, the limitations of user-split A / B testing, or maximizing rare and sparse samples, you’ll fit right in with our team.

Our ongoing projects are crucial to enhancing marketplace dynamism and accommodating budget-aware A / B experiments. Highlights include :

• A comprehensive A / B testing framework that splits both users and ad budgets for effective experimental control and treatment.
• An innovative exploration tool that allows for hundreds of A / B testing pairs of campaigns across multiple algorithmic candidates for pacing.
• A partitioned pacing and budgeting system to efficiently support an increasing number of advertisers and maintain refreshing rates above once per minute.

As a Senior Software Engineer on the AEXP team, you will :

Key Responsibilities :

Who You Might Be :

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Benefits :

This is an opportunity for a forward-thinking engineer eager to contribute to impactful experimentation in advertising.

Reddit embraces diversity and is committed to building a workforce that represents the communities we serve. We are also dedicated to providing reasonable accommodations for qualified individuals with disabilities in our job application processes.