Responsibilities

Lead development of AI-driven personalized learning solutions and shape Preply's scientific roadmap Design and deploy scalable machine learning solutions for personalized learning and intelligent tutor systems Develop long-term scientific roadmaps aligned with product strategy and business goals Advise senior leadership on investments, technology direction, and organizational planning Partner with applied science leaders, product managers, and engineering teams to deliver AI solutions Guide and mentor scientists and engineers Establish and advocate for machine learning best practices, including architecture design, research roadmaps, and deployment pipelines Report directly to the VP of Data and Applied AI

Requirements

PhD in NLP, IR, Machine Learning, or related fields (or equivalent experience) 8+ years of industry experience Strong focus on deep learning-based NLP, LLM continuous pre-training, and IR methods Demonstrated expertise in retrieval models Extensive experience with ranking models Strong understanding and experience with retrieval-augmented generation (RAG)



and LLMs for real-world applications Proficiency in deep learning frameworks such as PyTorch Hands-on experience with cloud platforms such as AWS or Google Cloud Proven ability to lead scientific roadmaps across multiple product areas Track record of solving real-world problems throughout the entire product lifecycle, from research to production Passion for scientific innovation in personalized learning Ability to work cross-functionally with diverse teams

Core Competencies Demonstrates expertise in developing AI-driven personalized learning solutions, with a strong focus on deep learning-based NLP and LLMs. Proven ability to lead scientific roadmaps and collaborate cross-functionally to deliver innovative AI solutions. Highest-signal resume keywords

PhD In NLP Deep Learning-Based NLP Machine Learning Solutions Proficiency In PyTorch Cloud Platforms Experience

ATS Optimization Keywords Hard Skills

Machine Learning Natural Language Processing Deep Learning Retrieval Models Ranking Models Retrieval-Augmented Generation LLMs AI Solutions Development Scientific Roadmap Development Problem Solving

Soft Skills

Leadership Mentoring Collaboration Advisory Skills Communication

Industry Keywords

Personalized Learning AI-Driven Solutions Product Lifecycle Research Roadmaps Deployment Pipelines

Tools & Technologies

PyTorch AWS Google Cloud

#J-18808-Ljbffr

📌 Senior Principal Applied AI Scientist (Barcelona)
🏢 Jobtailor
📍 Barcelona