Research Engineer / Research Scientist - Foundations Retrieval IC

About the Team The Foundations Research team works on high-risk, high-reward ideas that could shape the next decade of AI. Our goal is to advance the science and data that enable our training and scaling efforts, with a particular focus on future frontier models. Pushing the boundaries of data, scaling laws, optimization techniques, model architectures, and efficiency improvements to propel our science. About the Role We’re looking for a researcher focused on our embedding retrieval efforts. You’ll work with a a team of world-class research scientists and engineers developing foundational technology that enables models to retrieve and condition on the right information, at the right time. This includes designing new embedding training objectives, scalable vector store architectures, and dynamic indexing methods. This work will support retrieval across many OpenAI products and internal research efforts, with opportunities for scientific publication and deep technical impact. This role is based in San Francisco, CA. We use a hybrid work model of 3 days in the office per week and offer relocation assistance to new employees. Responsibilities Tackle embedding models and retrieval systems optimized for grounding, relevance, and adaptive reasoning. Collaborate with a team of researchers and engineers building end-to-end infrastructure for training, evaluating, and integrating embeddings into frontier models. Drive innovation in dense, sparse, and hybrid representation techniques, metric learning, and learning-to-retrieve systems. Collaborate closely with Pretraining, Inference, and other Research teams to integrate retrieval throughout the model lifecycle Contribute to OpenAI’s long-term vision of AI systems with memory and knowledge access capabilities rooted in learned representations. You Might Thrive in This Role If You Have Proven experience leading high-performance teams of researchers or engineers in ML infrastructure or foundational research. Deep technical expertise in representation learning, embedding models, or vector retrieval systems. Familiarity with transformer-based LLMs and how embedding spaces can interact with language model objectives. Research experience in areas such as contrastive learning, supervised or unsupervised embedding learning, or metric learning. A track record of building or scaling large machine learning systems, particularly embedding pipelines in production or research contexts. A first-principles mindset for challenging assumptions about how retrieval and memory should work for large models. About OpenAI OpenAI is an AI research and deployment company dedicated to ensuring that general-purpose artificial intelligence benefits all of humanity. We push the boundaries of the capabilities of AI systems and seek to safely deploy them to the world through our products. AI is an extremely powerful tool that must be created with safety and human needs at its core, and to achieve our mission, we must encompass and value the many different perspectives, voices, and experiences that form the full spectrum of humanity. We are an equal opportunity employer, and we do not discriminate on the basis of race, religion, color, national origin, sex, sexual orientation, age, veteran status, disability, genetic information, or other applicable legally protected characteristic. For additional information, please see OpenAI’s Aff… Background checks for applicants will be administered in accordance with applicable law, and qualified applicants with arrest or conviction records will be considered for employment consistent with those laws, including the San Francisco Fair Chance Ordinance, the Los Angeles County Fair Chance Ordinance for Employers, and the California Fair Chance Act, for US-based candidates. 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