Senior Applied AI Scientist (AI Marketplace)
Preply · Kyiv
About this role
WE POWER PEOPLE’S PROGRESS. At Preply, we’re all about creating life-changing learning experiences. We help people discover the magic of the perfect tutor, craft a personalised learning journey, and stay motivated to keep growing. Our approach is human-led, tech-enabled - and it’s creating real impact. We’ve just reached unicorn status with a $150M Series D, accelerating our vision to transform education through human-led, AI-enhanced learning. Today, 100,000+ tutors teach 90+ languages to learners in 180 countries - and we’re only getting started. As a category-defining company, we’re shaping what the future of learning looks like at global scale. Every Preply lesson sparks change, fuels ambition, and drives progress that matters. Joining Preply means helping define the future of education at global scale, and building something that truly matters for millions of people, every day. MEET THE TEAM! At Preply, AI isn't a feature - it's foundational. It powers how we connect millions of learners and tutors, personalise every interaction, and build a marketplace where meaningful learning thrives at global scale. The Applied AI team sits at the centre of this ecosystem. We design and deploy intelligent systems that drive real-time tutor - learner matchmaking across millions of sessions worldwide. Over time, we've evolved from traditional machine learning approaches into a modern AI-native marketplace - leveraging deep learning, advanced ranking and re-ranking architectures, and proprietary multimodal data including audio, video, and transcripts to deliver smarter recommendations and measurable learning outcomes. Our scope extends far beyond recommendations. We build and operate the intelligence layer that ensures the marketplace is not only high-performing, but also safe and trustworthy. From neural ranking models in PyTorch to large-scale experimentation infrastructure and full-spectrum Trust & Safety systems, including fraud prevention, abuse detection, and marketplace
Excerpt from the posting Preply published. Read the full description on their site before applying.
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