机器学习工程师

You are the person who takes ML research and turns it into production systems that work. Training pipelines, eval harnesses, inference services, synthetic data generation, feedback loops. Not a research role. Not a backend integration role. The full path from prototype to deployed system.

proven ability to ship ML models into real products, not just notebooks and demos; reinforcement learning experience: applied RL, DPO, GRPO, reward modeling, preference optimization; LLM post-training workflows: SFT, preference datasets, rejection sampling, multi-candidate eval