ML Engineer: Multicloud API & Post-Training (AWS)

OpenAI is seeking a Machine Learning Engineer to build and scale AI systems that help strategic partners adapt OpenAI models to cloud-native environments, starting with AWS. This role covers post-training workflows, evaluation, data pipelines, model behavior, and API/infrastructure integration. You will collaborate with Research, Applied, Safety Systems, and external partners to diagnose issues, run experiments, and implement improvements that raise model quality and reliability while delivering