Senior Applied AI Scientist (AI Learning)

The role

You will apply deep learning, NLP, LLMs, and multimodal AI to build and optimize scalable machine learning solutions for personalized learning and AI tutors. You will work on AI models, prototyping, and deployment in production environments while collaborating with product and engineering teams.

What you will do

• Apply deep learning, NLP, LLMs, and multimodal AI to build and optimize scalable machine learning solutions.
• Work on cutting-edge AI models, contributing to research, prototyping, and deployment in production environments.
• Partner with scientists, engineers, and product teams to deliver AI-driven solutions.
• Support and mentor junior scientists and engineers.
• Contribute to machine learning best practices, including model architecture, research methodologies, and deployment pipelines.

Required qualifications

• PhD in NLP, Machine Learning, or a related field (or equivalent experience)
• 4+ years of industry experience, focusing on deep learning-based NLP applications
• Strong proficiency in deep learning frameworks such as PyTorch or TensorFlow
• Hands-on experience with cloud platforms (e.g., AWS, Google Cloud)
• Ability to drive AI initiatives from research to production in a collaborative environment
• Strong problem-solving skills and a track record of building impactful AI solutions
• Passion for advancing AI-driven personalized learning experiences
• Eagerness to work in a fast-paced, cross-functional setting

Nice to have

• Experience with LLMs and retrieval-augmented generation (RAG)

Benefits

• An open, collaborative, dynamic and diverse culture
• A generous monthly allowance for lessons on Preply.com
• Learning & Development budget and time off for your self-development
• A competitive financial package with equity, leave allowance and health insurance
• An attractive relocation package to join the Preply Barcelona Hub
• Access to free mental health support platforms
• Access to Gympass-partnered wellness and gym centers throughout Spain

About the company

Preply is a category-defining company that helps people discover tutors and craft personalised learning journeys. They use human-led, tech-enabled approaches to transform education through AI-enhanced learning.