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 global scale.

Every Preply lesson sparks change, fuels ambition, and drives progress that matters. Joining Preply means helping define the future of education at integral scale, and building something that truly matters for millions of people, every day.

Preply Engineering Team

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 set the technical direction, lead cross-functional projects, and build systems that power Preply's global growth engine. We are tech-agnostic, meaning we are open to considering candidates with diverse technology backgrounds, such as Java/Spring, Node.js/Express.js, Ruby/Ruby on Rails, Scala/Play, PHP, or Golang.

While Python is our primary programming language, prior experience with it is not mandatory. What truly matters is your enthusiasm for learning Python and your ability to adapt quickly to using it for product development.

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.

Scope and lead cross-functional initiatives involving design, data, product, security, and other engineering teams.

Design and implement scalable backend systems, data pipelines, and integrations with third-party platforms





Mentor and coach junior and middle engineers across squads

Improve performance, tracking, monitoring, and reliability of our systems with an eye on long-term scalability.

Collaborate closely with PMs, EMs, designers, and analysts to make data-informed, user-centered decisions.

Champion engineering best practices: test automation, documentation, observability, and quality-first culture.

Exposure to architectural patterns of a large, high-scale web application (e.g., well-designed APIs, high-volume data pipelines, efficient algorithms);

Proven experience leading complex, ambiguous, or greenfield projects end-to-end

Strong communication and cross-functional collaboration skills (English level B2+)

Side projects or product ownership experience.

Familiarity with cloud platforms (AWS/GCP) and modern DevOps practices.

Familiarity and willing to support small JS/TS tasks when needed.

Engineers lead bold projects, make key tech decisions, and see their work drive business results.

We work cross-functionally with data, product, design, marketing. From cloud-first infra to observability-first ops, we prioritize scalable systems and smart engineering practices that last.

Why you'll love it at Preply

Learning & Development budget, and time off for your self-development;

A competitive financial package with equity, leave allowance, and health insurance;

We offer an attractive relocation package to join us in our Preply Barcelona Hub;

We do it for learners

- To create an outstanding customer experience, we focus on simplicity, smoothness, and enjoyment, continually perfecting it as every detail matters.

In a fast-paced world, it matters how quickly we act. We proactively seek growth opportunities and believe today's best performance becomes tomorrow's starting point. Raise the bar

- We raise our performance standards continuously, alongside each new hire and promotion. We value open and candid communication, even when we don't fully agree. We believe that the presence of different opinions and viewpoints is a key ingredient for our success as a multicultural Ed-Tech company.

📌 Senior backend developer - Tech Lead (Laza)
🏢 Preply
📍 Laza