Senior Full-stack Engineer (frontend-heavy)

At Preply were all about creating life-changing learning experiences. 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 its creating real impact.

Weve just reached unicorn status with a $150M Series D accelerating our vision to transform education through human-led AI-enhanced learning. Today 100000 tutors teach 90 languages to learners in 180 countries - and were only getting started. As a category-defining company were 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.

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.

Were proudly tech-agnostic great engineers come from all kinds of backgrounds. Whether youve worked with Java/Spring Ruby on Rails Scala/Play PHP or Go youll feel right at home here. Python experience isnt 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 5060 times per day thanks to a solid CI/CD setup and a culture that values action over ceremony. As a fast-growing company youll find a wide range of technical challenges (we even write about many of them on our Engineering Blog!) the kind of work that keeps you learning stretching and growing.

Weve reached 90% adoption of AI coding tools across engineering and were 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.

• Design and deliver user-facing features using React and TypeScript. Youll own the entire journey from shaping the UX to implementation to launch and validation through our A/B experimentation framework.

• Develop backend features using Python/Django

• Help us improve our codebase and workflows by applying practical best practices across frontend backend and mobile.

• Collaborate with Design Product and Data to ideate test and validate user-facing experiences. Expect to dive into metrics formulate hypotheses analyze experiment results and iterate quickly based on impact.

• Strike the right balance between fast delivery and long-term stability helping us ship impactful features without adding complexity.

• Set a high bar for code quality and teamwork and help others grow through collaboration feedback and good engineering practices.

• AI Expertise: Deep hands-on expertise in Agentic AI. Able to redesign how the team builds software across the full SDLC not just code generation. Builds reusable AI assets that your team can adopt and delegates reasoning-heavy work while reserving judgment for architecture business logic and security. You set up the AI quality gates and you challenge existing engineering workflows and propose AI-based alternatives.

• Full-Stack Expertise: This role is primarily front-end focused with approximately 70% of the work dedicated to front-end development and 30% to back-end development requiring solid front-end expertise and well-rounded full-stack engineering skills.

• Front-end Expertise: Strong expertise in React Typescript HTML5 and CSS.

• Exposure to back-end tech: Expertise in Python/Java/ on Rails/PHP/Golang.

• Understanding Architectural Patterns: While deep backend expertise isnt required we do value familiarity with key architectural concepts and an ability to contribute to building reliable efficient services that support user-facing features at scale.

• Proactive Problem-Solving: You will be expected to face and solve challenges independently both in the codebase and in our product initiatives.

• Communication Skills: Good at working with others and communicating effectively in English at a B2 level or higher.

• Ownership: You take responsibility for the quality and outcomes of your work not just the code. You can make thoughtful technical decisions contribute to improving our engineering practices and support teammates through knowledge sharing and clear constructive feedback.

• An open collaborative dynamic and diverse culture;

• A generous monthly allowance for lessons on Learning & Development budget and time off for your self-development;

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

• Access to free mental health support platforms;

• The opportunity to unlock the potential of learners and tutors through language learning and teaching in 175 countries (and counting!)

• Care to change the world - We are passionate about our work and care deeply about its impact to be life changing.

• We do it for learners - For both Preply and tutors learners are why we do what we do. Every day we focus on empowering tutors to deliver an exceptional learning experience.

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

• Now is the time - In a fast-paced world it matters how quickly we act. Now is the time to make great things happen.

• Disciplined execution - What makes us disciplined is the excellence in our execution. We set clear goals focus on what matters and utilize our resources efficiently.

• Dive deep - We leverage business acumen and curiosity to investigate disparities between numbers and stories unlocking meaningful insights to guide our decisions.

• Growth mindset - We proactively seek growth opportunities and believe todays best performance becomes tomorrows starting point. We humbly embrace feedback and learn from setbacks.

• Raise the bar - We raise our performance standards continuously alongside each new hire and promotion. We build diverse and high-performing teams that can make a real difference.

• Challenge disagree and commit - We value open and candid communication even when we dont fully agree. We speak our minds challenge when necessary and fully commit to decisions once made.

• One Preply - We prioritize collaboration inclusion and the success of our team over personal ambitions. Together we support and celebrate each others progress.

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.

Required Experience:

Senior IC