Senior ML Engineer (AI Research)

Nebius is seeking a Senior Machine Learning Engineer to join its AI Research team, which focuses on applied research in artificial intelligence. The role involves conducting experiments to enhance the training of large language models and exploring guided generation and search methods within trajectory spaces. Candidates should have experience in reinforcement learning, particularly in agentic systems and reasoning models, as well as skills in efficient model distillation and web-scale data collection. The position is remote, allowing for flexibility in work arrangements. This role is suitable for individuals with a strong background in machine learning and AI research, particularly those who have published work in relevant areas. Nebius emphasizes collaboration, as research findings often lead to practical applications across different teams. The company is committed to building a comprehensive AI cloud platform and values engineers with deep expertise in hardware, software, and AI R&D.