Data Scientist

Lingokids

  • Madrid
  • Permanente
  • Tiempo completo
  • Hace 11 horas
Lingokids is on a mission to help families raise amazing kids through Playlearning™. Ready to join us on this exciting journey? 🚀Lingokids is a global leader in educational technology, helping over 185 million families worldwide raise amazing kids through Playlearning™-our unique approach that blends education with play. Our mission is to empower children with modern learning experiences, combining educational subjects with essential life skills to help them grow into confident, conscious, and resilient lifelong learners.Beyond our award-winning app, we've built a multi-platform educational universe, including our “Baby Bot” and “Baby Bot's Backyard Tales” shows, Podcasts, and Music Publishing. Our content, developed in collaboration with top education experts and Oxford Press University, ensures an engaging, high-quality learning experience in a safe, ad-free environment. This dedication to excellence has earned Lingokids multiple industry awards across app, podcast, and video categories, including Best Original Learning App by Kidscreen Awards, National Parenting Product Awards by NAPPA Awards, and Best Parenting Product by Good Housekeeping, among many others!As a highly technical Data Scientist you will help us scale and produce our recommendation systems. Our models generate personalized content based on user segments, combining multiple ranking strategies, and modifiers to balance performance and diversity. While the team currently focuses on improving recommendation logic and experimentation, this role ensures our solutions are robust, scalable, and production-ready.If you want to be part of a team that's redefining the future of education, we'd love to hear from you!What you'll do
  • Own the technical implementation and maintenance of our recommendation engine in production.
  • Productise machine learning models and pipelines (baseline + experimental logics).
  • Ensure system performance, reliability, and low latency (e.g., Redis-based caching, catalog rotations, modifiers).
  • Anticipate scaling challenges and design infrastructure to support larger catalogs, more complex segmentations, and higher traffic.
  • Collaborate with scientists, analysts, and engineers to turn prototypes (new logics/experiments) into production-grade features.
  • Develop and maintain data pipelines, ensuring clean transformations and robust experimentation frameworks.
  • Partner with product and engineering to balance performance metrics with diversity, user experience, and content constraints.
What you'll bringWhat you'll bring:
  • Strong proficiency in Python for ML, experimentation, and infrastructure.
  • Solid knowledge of SQL and dbt for transformations.
  • Experience with Databricks (or similar ML/data platforms).
  • Proficiency with Redis (real-time serving, caching strategies).
  • Hands-on experience deploying and monitoring ML models in AWS (SageMaker, Lambda, ECS, Step Functions).
  • Familiarity with orchestration tools (Airflow, Prefect, Dagster) for pipeline reliability.
  • Comfortable with Git/GitHub and CI/CD practices for ML systems.
  • Strategic mindset: ability to anticipate infrastructure needs as models and experiments scale.
Nice to Have
  • Exposure to experimentation platforms (Amplitude, GrowthBook) and A/B testing frameworks.
  • Knowledge of modern data stack tools (Snowflake, BigQuery, Fivetran).
  • Interest in balancing data-driven optimization with pedagogical or brand-driven constraints (e.g., curated onboarding, character injection).
English is a must: We're a multicultural team providing a service in English, so while certifications aren't necessary, fluency is essential. As a fully remote company, clear and effective spoken and written communication-especially in asynchronous, long-form formats-is key to collaborating successfully.Life at Lingokids📚 Career Growth: Your growth drives our success! We invest in your development up to €2,000 per year for books and training-so you can keep learning and growing with us.🏡 Remote-Friendly: Work from where you're most productive-home or our offices in Madrid, Málaga, or Barcelona-anywhere within a 2-hour difference from Spain (GMT+1). The choice is yours!📈 Stock Options: Your contribution matters! You'll receive stock options, giving you the opportunity to own part of the company and share in its success.🖥 Home Office Setup: Create your ideal workspace with a €400 allowance for setup and €35/month for remote work expenses-because comfort fuels creativity!🍲 Meal Allowances: Get €60/month on your Cobee card to enjoy meals at restaurants or food delivery-good food makes everything better!💳 Flexible Compensation: Manage your meal, transport and childcare expenses easily with , integrating them directly into your payroll.🩺 Health Insurance: Access private health coverage at exclusive rates through Adeslas, seamlessly deducted from your payroll-quality care made simple.💬 Language Lessons: Learning never stops! Enjoy free language classes in Spanish and English, to sharpen your skills and stay connected in a global team.🌍 Visa Sponsorship: If you need a visa to work in the EU, we'll handle the process and cover the costs to make your transition seamless.🎉 Company events: Yes! We're a fully remote team spread across different countries, but we love getting together from time to time in different corners of Spain, for team gatherings and recharging at our amazing offsites!Passion matters more than perfectionDidn't check every box for this role? No worries! We're looking for passionate, driven individuals who believe in our mission. If that sounds like you, we'd still love to hear from you!Diversity, Equity, and InclusionAt Lingokids, diversity isn't just a checkbox-it's at the heart of everything we do. Just like we teach kids to embrace differences, we celebrate them in our team, knowing that the best ideas come from unique perspectives. We're all about creating a space where everyone feels valued, heard, and empowered to be their authentic selves. No matter your background, identity, or story, if you're passionate about making a difference in education, we want you here.

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