Research Engineer, Notifications

OpenAI is an AI research and deployment company dedicated to ensuring that general-purpose artificial intelligence benefits all of humanity. They are looking for a Machine Learning Engineer to join their Notifications team, focusing on building and scaling intelligent notification systems that enhance user experience. The role involves designing ranking and recommendation systems using classical ML techniques and large language models to optimize notification relevance and timeliness.

Responsibilities:

• Design and build end-to-end ranking and recommendation systems for notifications, from modeling to evaluation and deployment
• Apply and adapt LLMs to ranking problems, including prompt-based approaches and fine-tuning
• Develop experiments to evaluate notification relevance, user value, and long-term impact, working closely with product, data science, and engineering teams
• Collaborate with research teams to leverage the latest modeling techniques while balancing practical constraints of production systems
• Build robust offline and online evaluations to measure system improvements and user outcomes
• Contribute to the broader Growth ML stack and help set technical direction for intelligent user engagement systems