Senior II Full-Stack Engineer (back-end heavy)

Location: Barcelona

Employment Type: Full time

Location Type: Hybrid

Department: Engineering

Meet the team

Our team builds scalable, resilient products using Python/Django on the backend and React on the frontend, all with one goal in mind: creating a smooth, meaningful experience for our learners and tutors.

We’re proudly tech‑agnostic, great engineers come from all kinds of backgrounds. Whether you’ve worked with Java/Spring, Node.js, Ruby on Rails, Scala/Play, PHP, or Go, you’ll feel right at home here. Python experience isn’t required.

We make decisions based on data and real user feedback: running A/B tests, shipping iteratively, and constantly improving. We also put a strong focus on observability, monitoring, and metrics, so we can keep our systems healthy and continue optimizing at scale.

At Preply, we ship 50–60 times per day, thanks to a solid CI/CD setup and a culture that values action over ceremony. As a fast‑growing company, you’ll find a wide range of technical challenges,



the kind of work that keeps you learning, stretching, and growing.

We’ve reached 90%+ adoption of AI coding tools across engineering, and we’re now moving towards more autonomous, AI‑Augmented development at scale. At Preply, engineers have direct access to the best tools available, with the freedom to use them fully and experiment as they build.

What you’ll be doing

You will work in a cross‑functional team alongside Product Managers, Product Designers, UX Writers, Data Analysts, Engineering Managers, Engineers, and other stakeholders to deliver meaningful outcomes for learners and tutors as a Senior II Full Stack Engineer. You will combine hands‑on execution with technical leadership, helping shape both product direction and engineering excellence through initiatives that drive customer and business impact, including, but not limited to:
- Back-end Development: Design, build, and evolve scalable backend systems using Python

📌 Senior II Full-Stack Engineer (Barcelona)
🏢 Preply
📍 Barcelona