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Job description
Reddit is a community of communities. It’s built on shared interests, passion, and trust, and is home to the most 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 130 million daily active unique visitors, Reddit is one of the internet’s largest sources of information. For more information, visit
Reddit has a flexible workforce! If you happen to live close to one of our physical office locations our doors are open for you to come into the office as often as you\'d like. Don\'t live near one of our offices? No worries: You can apply to work remotely in any country in which we have a physical presence.
About the Team
The Ads Creative Effectiveness team is aimed at improving the impact of ad creative at Reddit through generative and predictive products. We adapt and finetune LLMs/VLMs to help advertisers make impactful images, videos, text and more. We build performance predictors to understand and rank ad components, ensuring the advertiser ships the best possible campaigns. We construct insight and recommendation engines to guide advertisers towards best practices and key enhancements, distilling knowledge about what works at Reddit to supercharge their performance.
About the Role:
Reddit’s newly minted Ads Creative Effectiveness team sits at the heart of our creative strategy, building GenAI and predictive products that help advertisers ship high-impact campaigns. We are searching for a Sr. Software Engineer to help us build the future of generative products for ad creative at Reddit - from contributing to the development of best-in-class image, video and copy generators that leverage Reddit’s best practices, performance-guided generations that maximize clicks and conversions, and brand safe, product preserving image/video editing pipelines at scale.
Responsibilities:
Lead Creative Engineering Architecture: Drive the design and implementation of high-performance backends for ad creative generation. You will own the architectural vision for brand asset preservation and style consistency, ensuring our GenAI stack is modular, extensible, and seamlessly integrated into Reddit’s infrastructure.
Advanced Editing & Asset Workflows: Lead the development of end-to-end image and video editing engines. You will design the underlying APIs and logic that allow for complex asset manipulation while maintaining strict, automated adherence to brand guidelines.
Scale Performance Feedback Systems: Architect the infrastructure that bridges the gap between ad performance (CTR, CVR) and the creative engine. You will build scalable systems to ingest high-volume performance data and programmatically optimize the generation flywheel.
Optimize Model Orchestration & Efficiency: Solve complex engineering challenges around high-concurrency inference, latency optimization, and cost-efficient scaling at Reddit's global volume.
Robust Safety & Compliance Systems: Design and maintain mission-critical middleware for content filtering and compliance. You’ll ensure our safety layers are resilient, low-latency, and capable of preventing non-compliant or infringing content from reaching the platform.
Cross-Functional Technical Leadership: Partner deeply with Product, UX, and Ads ML leadership to help define the technical roadmap for ACE. You’ll translate broad business objectives into concrete technical designs and build integrations into the Ad Manager UI and delivery stacks.
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Who can apply
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