Hiring: Machine Learning Research Engineer Company: Flagship Pioneering Location: Cambridge, MA Job Posted Time: 2026-09-16 17:16:04 Employment Type: Full-time Target Skills & Keywords: Machine Learning, Deep Learning, NLP, LLMs, Reinforcement Learning from Human Feedback (RLHF), Supervised Fine-Tuning, Context Engineering, Agentic AI, PyTorch, vLLM, LangGraph, Python, Data Pipelines, Model Evaluation Experience: - Masters level (or above) experience in Computer Science, Machine Learning, and AI preferred (can be relaxed for exceptional candidates) - Proven experience deploying LLM-powered applications in production environments - Experience in a previous startup is a plus Required Skills: - Strong foundation in machine learning, deep learning, and natural language processing (NLP) - Expertise in reinforcement learning from human feedback and supervised fine-tuning - Proficiency in Python and tools for ML development - Experience with large-scale data pipelines and pre-processing - Familiarity with standard evaluation protocols - Hands-on expertise with frameworks like PyTorch, vLLM, and LangGraph - Ability to design, develop, and deploy ML-powered applications leveraging LLMs - Strong communication and presentation skills for multi-disciplinary audiences Qualifications: - Publications at top ML/NLP venues such as NeurIPS, ICML, ACL, and EMNLP are a bonus - Self-motivated and comfortable working in ambiguous, fast-moving environments with evolving goals - Must be able to think independently and work collaboratively - Passion for building technologies that enable others to maximize their potential Compensation: Not specified Interested candidates, please apply directly through the job posting on company's career page or try via AI auto apply on this platform. Don’t miss this opportunity to join a forward-thinking team!