Description
Reflection is hiring a post-training AI Research Engineer to build systems that transform powerful pre-trained models into aligned and general agents. The role combines research and engineering across data curation, large-scale optimization, data generation, reward modeling, reinforcement learning, and inference-time scaling, while collaborating with pre-training and post-training teams. Candidates should have strong machine learning fundamentals, large-scale LLM training experience, distributed systems skills, and a record of improving model behavior through data, reward modeling, or reinforcement learning. The position offers global salary and equity, medical, dental, vision, and life insurance, paid parental leave, vacation, meals, and visa sponsorship support.
