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Senior Applied Ai Scientist

hace 2 semanas

Barcelona, España Preply A tiempo completo

**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 personalized learning journey, and stay motivated to keep growing. Our approach is human-led, tech-enabled - and it's creating real impact. So far, 90,000 tutors have delivered over 20 million lessons to learners in more than 175 countries. Every Preply lesson sparks change, fuels ambition, and drives progress that matters.

**Meet the team**:
As a Senior AI Scientist, you will lead the development of AI-driven personalized learning solutions and shape Preply's scientific roadmap. Working alongside exceptional scientists and engineers, you will architect state-of-the-art models and systems that enhance the experiences of millions of learners worldwide.

**What you'll be doing**:

- 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.

**What you need to succeed**:

- PhD NLP, IR, Machine Learning, or a related field (or equivalent experience)
- Experience with retrieval models, ranking models, LLMs and retrieval-augmented generation (RAG).
- 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.

**Why you'll love it at Preply**:

- An open, collaborative, dynamic and diverse culture;
- 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).

**Our Principles**:

- **Care to change the world** - We are passionate about our work and care deeply about its impact to be life changing.
- **We do it for learners** - For both Preply and tutors, learners are why we do what we do. Every day we focus on empowering tutors to deliver an exceptional learning experience.
- **Keep perfecting**:

- To create an outstanding customer experience, we focus on simplicity, smoothness, and enjoyment, continually perfecting it as every detail matters.
- **Now is the time** - In a fast-paced world, it matters how quickly we act. Now is the time to make great things happen.
- **Disciplined execution** - What makes us disciplined is the excellence in our execution. We set clear goals, focus on what matters, and utilize our resources efficiently.
- **Dive deep** - We leverage business acumen and curiosity to investigate disparities between numbers and stories, unlocking meaningful insights to guide our decisions.
- **Growth mindset** - We proactively seek growth opportunities and believe today's best performance becomes tomorrow's starting point. We humbly embrace feedback and learn from setbacks.
- **Raise the bar** - We raise our performance standards continuously, alongside each new hire and promotion. We build diverse and high-performing teams that can make a real difference.
- **Challenge, disagree and commit** - We value open and candid communication, even when we don't fully agree. We speak our minds, challenge when necessary, and fully commit to decisions once made.
- **One Preply**:

- We prioritize collaboration, inclusion, and the success of our team over personal ambitions. Together, we support and celebrate each other's progress.

**Diversity, Equity, and Inclusion**:
Preply is committed to creating a diverse and inclusive environment where people from all backgrounds can thrive. Different opinions and viewpoints are key ingredients in our success as a multicultural Ed-Tech company.

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