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. As a category-defining company, we’re shaping what the future of learning looks like at general 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.The Preply Engineering Team provides the tools to help unlock human potential through learning. We implement A/B tests to prove the value of our initiatives and improve our product based on data and students' and tutors' feedback. As part of our commitment to ensuring high-quality products,



we prioritize monitoring and metrics analysis to identify areas for optimization and ensure our services are performing at their best.As a Senior II Backend Engineer, you'll drive technical direction across multiple squads, lead high-impact initiatives, and build the systems that power Preply's global growth engine. Python is our primary language, but prior experience with it isn't mandatory. We take a tech-agnostic approach and welcome engineers from various backgrounds, such as Java, Node.js, Ruby, Scala, .NET, PHP, or Go. Design, build, and evolve scalable backend systems using Python/Django, data pipelines, and third-party integrations that support long-term business growth.Partner with PMs, EMs, and senior stakeholders to shape roadmaps, make technical trade-offs, and guide investment decisions.Drive reliability, observability, performance, and operational excellence across multiple services and teams.Foster a quality-first culture through automation, documentation, and continuous improvement.What you

📌 Senior Back-End Developer/Spark (Barcelona)
🏢 Preply
📍 Barcelona