Machine Learning Engineer

LMArena is seeking a Senior Machine Learning Engineer to help scale and strengthen the core infrastructure that powers real-world AI evaluation. The role involves shaping how AI is assessed in the wild and defining cutting-edge AI evaluation methods.

Requirements

• Strong programming skills with the ability to work across the stack in a typical recommendation system or LLM stack
• Experience in deep learning, language models or reward model training
• Experience in working with LLM for fine tuning, prompt engineering, function calling etc
• Self-motivated with a willingness to take ownership of tasks
• A passion for shipping quality products
• 4+ years of industry experience or relevant projects
• Solid understanding of statistics, and various tools and methodologies for evaluating uncertainty in a way that is specific to the given product being shipped

Benefits

• Competitive salary
• Meaningful equity
• Comprehensive healthcare coverage (medical, dental, vision)
• The opportunity to work on cutting-edge AI with a small, mission-driven team
• A culture that values transparency, trust, and community impact