Senior Applied AI Scientist (AI Learning)

Stack

Responsibilities

• ▹AI Research & Development: apply deep learning, NLP, LLMs, and multimodal AI to build and optimize scalable machine learning solutions for personalized learning and AI tutors
• ▹Applied Science Execution: work on cutting-edge AI models, contributing to research, prototyping, and deployment in production environments
• ▹Cross-functional Collaboration: partner with scientists, engineers, and product teams to deliver AI-driven solutions that improve learning experiences and business outcomes
• ▹Mentorship & Knowledge Sharing: support and mentor junior scientists and engineers, fostering an environment of learning and innovation
• ▹Best Practices in ML: contribute to machine learning best practices, including model architecture, research methodologies, and deployment pipelines

Requirements

• ▹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 to bring AI research into real-world applications

Nice to have

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

Soft skills

What we offer

• ▹An open, collaborative, dynamic, and diverse culture
• ▹A generous monthly allowance for lessons on Preply.com, Learning & Development budget, and time off for self-development
• ▹A competitive financial package with equity, leave allowance, and health insurance
• ▹Access to free mental health support platforms
• ▹The opportunity to unlock the potential of learners and tutors through language learning and teaching in 175 countries (and counting!)

About the company

Preply is an EdTech company connecting learners with tutors — over 100,000 tutors teaching 90+ languages to learners in 180 countries. The company recently reached unicorn status after a $150M Series D funding round. The AI Learning team builds multimodal LLMs trained on video, audio, and transcript data to power personalized learning paths and real-time feedback — from conversational AI tools to smart teaching assistants.