Software Engineer, Monetization ML Infrastructure

About this role

OpenAI seeks an experienced Software Engineer to build ML infrastructure powering monetization and advertising systems. You'll design platforms supporting the complete ML lifecycle—from data pipelines and model training to real-time serving, experimentation, and monitoring—at global scale with strict reliability and privacy standards.

What you'll do

• Design and build ML infrastructure for monetization and ads systems
• Develop large-scale data pipelines processing impressions, clicks, conversions, and marketplace signals
• Create scalable model training platforms for ranking, prediction, bidding, and optimization workloads
• Build real-time inference and serving infrastructure with low-latency, high-throughput requirements
• Design A/B testing and experimentation frameworks for model evaluation and ramping
• Optimize training efficiency, inference latency, reliability, and infrastructure costs

What they're looking for

• Distributed systems design and implementation
• ML infrastructure and platforms
• Large-scale data pipeline development
• Real-time serving systems and inference optimization
• Model training and deployment systems
• Experimentation and A/B testing frameworks
• System reliability and observability practices
• Performance optimization and scalability