Founding Machine Learning Engineer

Jurny is building AI models that simulate how real customers behave across digital experiences. The Founding Machine Learning Engineer will build the core intelligence behind the company, owning model experimentation, behavioral modeling, evaluation, data pipelines, and production deployment end-to-end.

Responsibilities:

• Train and fine-tune models on real customer behavior
• Model user intent, preferences, and decision-making
• Build rigorous evaluation systems for simulation accuracy
• Design scalable training and data pipelines
• Ship models into production and continuously improve them

Requirements:

• Strong ML, statistics, and CS fundamentals
• Experience training or evaluating modern ML models
• Strong Python and PyTorch experience
• Experience building production ML systems
• Comfortable working with ambiguity and moving quickly
• High ownership and strong product instincts
• Experience with LLM post-training, RL, agentic systems, behavioral modeling, or simulation