About the Position

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.

We’ve just reached unicorn status with a $150M Series D, accelerating our vision to transform education through human-led, AI-enhanced learning. Today, 100,000+ tutors teach 90+ languages to learners in 180 countries - and we’re only getting started. As a category-defining company, we’re shaping what the future of learning looks like at global 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.

Responsibilities

You will work in a cross-functional team alongside the Product Manager, Product Designer, UX Writers, Data Analytics, Technical Leads, Engineers and other cross-functional team members to deliver engaging features through A/B tests and build top-notch products, including, but not limited to:

Develop and own backend features using Python/Django, supporting the creation of new backend services as well as design, create, and/or troubleshoot integrations with third-party vendors.
Think beyond the code and about our customers, understand their needs and define solutions with the team.
Balance short-term speed of development with the long-term technical quality of our systems.
As a Senior Engineer, you will leverage your experience to guide the team in making informed technical decisions, such as continuous improvement of best practices (test culture, code reviews, monitoring and scalability of our tools).

Requirements

Exposure to architectural patterns of a large, high-scale web application (e.g., well-designed APIs, high-volume data pipelines, efficient algorithms).
AI Expertise: You're a forefront user of Agentic AI. You're able to bring hands-on experience and start influencing the team beyond code generation; reserving judgment for architecture, business logic, and security, using AI as a thought partner and able to set up quality gates and safety nets to enhance existing engineering workflows and propose AI-native alternatives.
Familiar and willing to support small JS/TS tasks when needed.
Expertise in troubleshooting issues, identifying the root cause, mitigating it, and adding setting up safeguards to prevent future issues.
High level of self-organization, ownership, and responsibility.
A great collaborator with excellent verbal and written communication skills. Minimum B2 English level.
Willingness to be on-call for your squad (1 week every 5 weeks).

Nice to Have

Experience with Java/Spring, Node.js/Express.js, Ruby/Ruby on Rails, Scala/Play, PHP, or Golang.

We Offer

An open, collaborative, dynamic and diverse culture.
A generous monthly allowance for lessons on Preply.com, Learning & Development budget and time off for your self-development.
A competitive financial package with equity, leave allowance and health insurance.
Not in Barcelona? We offer an attractive relocation package to join us in our Preply Barcelona Hub.
Access to free mental health support platforms.
Access to Gympass-partnered wellness and gym centers throughout Spain to promote and support well-being and physical health.
The opportunity to shape the lives of learners and tutors through language learning and teaching in 175 countries (and counting!).

About the Company

Preply.com is committed to creating an inclusive environment where people of diverse backgrounds can thrive. We believe that the presence of different opinions and viewpoints is a key ingredient for our success as a multicultural Ed-Tech company. That means that Preply will consider all applications for employment without regard to race, color, religion, gender identity or expression, sexual orientation, national origin, disability, age or veteran status.

Senior Back-End Engineer

Job description