Open-Source ML Platform Engineer

Together AI in San Francisco is seeking a Research Engineer for Post-Training Inference to build a platform that lets developers tailor open-source models with their data. You will work across post-training, fine-tuning, RL, and evaluation to production serving and optimize the inference engine for large-scale experiments. You'll collaborate with product, research, and engineering teams to keep the API reliable, performant, and deeply integrated into our infrastructure, advancing open-source AI