Machine Learning Engineer / ML Engineer - Roleplay Sessions

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Machine Learning Engineer / ML Engineer - Roleplay Sessions based in Spain. This role focuses on building the AI engine behind interactive roleplay experiences that help people practice real-world conversations with AI avatars. You will develop machine learning systems that understand learner responses, evaluate performance, generate real-time coaching feedback, and guide dynamic AI interactions. The position combines applied machine learning with strong product-oriented software engineering, with a focus on solving practical user and business problems. You will work on products designed around active learning and measurable skill development rather than passive content consumption. The role offers the opportunity to contribute to sophisticated AI products within a high-performing engineering environment operating at significant scale. You will be expected to move quickly, iterate pragmatically, and translate ML capabilities into reliable product experiences. This is a hands-on opportunity for an experienced engineer who wants to have a direct impact on the development of next-generation AI-powered learning tools.