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 PyTorc

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