Senior Principal AI Scientist, Personalized Learning & LLMs

Preply; Barcelona; On-site; EUR 120,000 - 160,000; Full time

Job summary

Preply seeks a seasoned leader to drive AI-driven personalized learning initiatives. You will shape the scientific roadmap, design scalable ML solutions, and guide teams from research to production.

Applicants should have a PhD in a relevant field, 8+ years in industry, and deep expertise in NLP, LLMs, and retrieval methods, with strong PyTorch and cloud experience. Collaboration with product and engineering is essential.

Qualifications

• PhD in NLP, IR, ML or related field required.
• 8+ years of industry experience.
• Expertise in deep learning for NLP and LLMs.
• Strong knowledge of retrieval models and ranking methods.
• Experience with RAG and deploying LLM-based solutions.

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 ML best practices, including architecture, roadmaps, and deployment pipelines.
• Report directly to the VP of Data and Applied AI.

Skills

PhD in NLP

Deep Learning NLP

Retrieval Models

Ranking Models

RAG & LLMs

PyTorch

AWS / Google Cloud

Roadmap Leadership

Cross-Functional Collaboration

Problem Solving

Education

PhD in NLP, IR, ML or related

Tools

PyTorch

AWS

Google Cloud

Job description

Preply seeks a seasoned leader to drive AI-driven personalized learning initiatives. You will shape the scientific roadmap, design scalable ML solutions, and guide teams from research to production.

Applicants should have a PhD in a relevant field, 8+ years in industry, and deep expertise in NLP, LLMs, and retrieval methods, with strong PyTorch and cloud experience. Collaboration with product and engineering is essential.