Senior Software Engineer - Backend Focus

We are looking for a Senior Software Engineer with deep backend experience (5+ years) who wants to participate in the development of complex applications from start to finish.

🙌 You will be a great fit if..

• You have built and delivered complex products from start to finish, and you can show us.

• You master backend development - APIs, data modeling, asynchronous processing, SQL - with PHP (Symfony) and/or Python (FastAPI), and you have the judgment to move between them as needed.

• You have applied hexagonal architecture, TDD, DDD, and CQRS in real products and you know when they add value.

• You have a growth mindset and the use of AI agents has changed how you develop in the last year (while maintaining quality and good practices!).

• You have a product engineer mindset, with a genuine interest in understanding users and solving their problems.

• You care about how your code behaves in production, not just whether tests pass.

• You enjoy working in a team and you raise the bar for the people around you.

Our culture and values define who we are and how we work. We believe that how we do things is just as important as what we do. We know this is not the right place for everyone—and that is okay. Here is what you can expect when you join our team:

We aim high: We set ambitious goals and work with determination and passion to transform education. Here you can grow as much as you want, surrounded by people who push you, inspire you, and help you bring out your best.

We are owners: From day one, you will have real impact. We are not here just to execute, but to think, decide, and build. We trust you to take initiative, propose ideas, and see them become reality.

We move fast: We work in a dynamic environment where agility and adaptability make the difference. You will feel the pace, the energy, and the excitement of learning quickly, acting with good judgment, and making things happen.

We are eager to learn: We are curious, we question things, and we share what we learn. Every challenge is an opportunity to improve and keep growing, both individually and as a team.

We are humble: We foster a culture of trust and feedback where everyone has a voice. We listen actively, collaborate, and value ideas for their impact. Here you will find a team always ready to help, share, and celebrate achievements together.

We enjoy the ride: Our impact depends on the people who make it possible. That is why we take care of our culture with trust, flexibility, and well-being. We offer flexible hours, time off during Christmas week, and competitive compensation. And, of course, we love reconnecting at team-building events that remind us why we do what we do!

We have a hybrid model, with two days a week at our office in Sant Cugat (Barcelona). Proficiency in Spanish and English is essential, and we highly value Catalan.

What you will do:

• Take ideas from concept to classroom: understand the problem with the product, design the solution, build it, measure results, and iterate.

• Design and evolve the services and APIs that support the teachers' experience: domain modeling, architecture, performance, and reliability.

• Take care of how everything behaves in production: reliability, observability, incident response, and structural improvements.

• Participate in end-to-end development across the entire stack.

• Visit classrooms. The whole team visits schools at least once a quarter: you will see what you build in action and understand the "why" behind what we do.

Some of the challenges currently on the table: scaling the platform to integrate new school districts in the United States - rostering, massive data imports, multi-region coexistence - and continuing to grow the tools that help teachers understand how their students learn.

We have a hybrid model, with two days a week at our office in Sant Cugat.