Lead AI Data Engineer, LLM Training Pipelines

Kuailu Software is seeking a data engineer to build and maintain end-to-end training data pipelines for Large Language Models (LLMs), covering data cleaning, deduplication, format conversion, quality filtering, data mixture, and version management. You will collaborate with engineers to convert ReAct trajectories and Function Calling workflows into training-ready data formats, while overseeing data versioning and traceability for each iteration.