Senior Principal Applied Ai Scientist - Preply

Preply; Barcelona; Presencial; EUR 110.000 - 160.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Lessons allowance

Self-development leave

Equity

Health insurance

Mental health support

Competitive package

Descripción de la vacante

Preply in Barcelona seeks a Senior Principal Applied AI Scientist to lead AI-driven personalized learning solutions and shape the scientific roadmap. You will architect state-of-the-art models with a world-class team to improve learning for millions of users and advise leadership on technology directions.

This role combines autonomy with cross-functional influence, translating research into scalable products, mentoring scientists, and promoting ML best practices across the organization.

Formación

• PhD in NLP, IR, ML or related field (or equivalent experience).
• 8+ years of industry experience with deep learning-based NLP and LLMs.
• Experience with retrieval models and ranking models.
• Proficiency with PyTorch and cloud platforms.
• Strong leadership, mentorship, and cross-functional collaboration.

Responsabilidades

• Design and deploy scalable ML solutions for personalized learning.
• Develop long-term scientific roadmaps aligned with product goals.
• Collaborate with product and engineering to translate research into products.
• Mentor scientists and engineers to build an innovative science team.
• Establish ML best practices across architecture and deployment.

Conocimientos

PyTorch

NLP

Deep learning

LLMs

AWS

Google Cloud

Retrieval models

IR methods

Leadership

Mentorship

Cross-functional teamwork

Educación

PhD in NLP/IR/ML

Herramientas

AWS

Google Cloud

Descripción del empleo

As Senior Principal Applied AI Scientist, you will spearhead AI-driven personalized learning solutions and shape Preply’s scientific roadmap. You’ll architect state-of-the-art models with a world-class team to enhance learning experiences for millions of users. You’ll set long-term research directions aligned with product goals and advise leadership on technology decisions. This role combines autonomy, cross-functional influence, and the chance to push the boundaries of AI in education, at global scale.

• monthly allowance for lessons on Preply.com
• time off for self-development
• equity and health insurance
• free mental health support platforms
• competitive financial package with leave allowance
• Design and deploy scalable ML solutions for personalized learning and intelligent tutor systems using deep learning, NLP, IR, LLMs, and multimodal AI
• Develop long-term scientific roadmaps aligned with product strategy and business goals
• Collaborate with applied science, product, and engineering teams to translate research into products that unlock new opportunities
• Mentor scientists and engineers, fostering a collaborative, innovative science community
• Establish and promote ML best practices across architecture, roadmaps, and deployment pipelines
• PhD in NLP, IR, ML or related fields (or equivalent experience)
• 8+ years of industry experience with deep learning-based NLP, LLM pre-training, and IR methods
• Expertise in retrieval models and ranking models
• Experience with retrieval-augmented generation (RAG) and LLMs in real-world applications
• Proficiency with PyTorch
• Hands-on experience with cloud platforms (AWS, Google Cloud)
• Proven ability to lead scientific roadmaps across product areas and collaborate with Product and Engineering
• Track record of solving real-world problems across research to production
• strong collaboration and cross-functional teamwork
• leadership and mentorship
• strategic advisory capabilities to senior leadership
• PyTorch

Senior Principal Applied AI Scientist - Preply barcelona, catalunya, es