Senior Software Engineer - Ads Experimentation Platform

Job Description

Reddit is seeking a Senior Software Engineer to join its Ads Experimentation Platform (AEXP) team. This role is crucial for building tools that enable engineers and scientists to accurately test new products and efficiently verify ideas within the dynamic Reddit ads marketplace. The AEXP team focuses on addressing complex challenges such as budget cannibalization and optimizing sparse conversion events. They are also dedicated to building scalable and flexible pacing infrastructures to improve market efficiency and budget-aware testing capacity.This role involves close collaboration with data science partners and product leaders to enhance existing experimentation tools, research and develop new testing methodologies, and champion experimentation practices across Ads marketplace teams. The Senior Software Engineer will work with cross-functional engineering, product, and data science teams to ensure customer feedback is integrated into the development process.Responsibilities:

• Building A/B testing tools customized for Ads marketplace.
• Building A/B testing tools for measuring infra cost by each ad product.
• Building advertiser-facing tools for exploring through Reddit Ads products and optimizing for the best performances.
• Building scalable and reliable ad pacing platform to enable efficient experimentation and research on the control algorithms.

Requirements:

• Degree in a quantitative discipline.
• 5+ years of contributing high-quality code to production systems that operate at scale.
• 3+ years of experience building ads-serving related systems.
• Experience building A/B testing frameworks for multiparty marketplace scenarios.
• Experience leading large engineering teams and collaborating with cross-functional partners.
• Significant experience in one or more backend programming languages, experience with Go or Scala is preferable.
• Significant experience with API development and service frameworks.
• Experience with Data processing frameworks like Spark, Flink, Kafka, Druid, etc.
• Experience with a cloud service provider like AWS or GCP.
• Experience with Tools: Kubernetes, Drone, CircleCI, Spinnaker, Argo, Airflow, Docker.
• Experience with Datastores: ElasticSearch / Amazon OpenSearch, Redis, Postgres, Cassandra, BigQuery.

What Reddit Offers:

• Comprehensive Healthcare Benefits and Income Replacement Programs
• 401k 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