Senior Full-stack Engineer (backend-heavy)

Навыки

• CI/CD
• Коммуникация
• Продуктовое мышление
• Решения на данных
• Распределённые системы
• Django
• Java

О компании и продукте

• 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.

Задачи

• 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 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
• UI Development: Develop and evolve frontend experiences in React/Typescript, contributing to experimentation frameworks and helping establish frontend engineering best practices
• Implementation & Ownership: Lead complex initiatives from discovery through deployment, taking ownership of solutions throughout their lifecycle and balancing immediate product needs with long-term sustainability
• Raising the Bar: Drive engineering excellence through mentorship, architectural reviews, and the adoption of best practices across frontend and backend development
• Data-Driven Product Development: Partner closely with Product, Data, and UX teammates to identify opportunities, validate hypotheses, and maximize customer value through experimentation and measurable outcomes
• System Design: Shape architectural direction for complex systems, making technical decisions that improve scalability, reliability, maintainability, and developer productivity
• Prioritisation & Decision-Making: Navigate ambiguity, evaluate trade-offs, and align technical investments with business objectives and customer impact
• Technical Leadership: Influence technical direction beyond your immediate scope, collaborating with engineers, managers, and stakeholders to drive alignment and successful delivery
• Chasing Excellence: Continuously raise the quality bar through craftsmanship, curiosity, continuous learning, and a commitment to helping others grow
• WE POWER PEOPLE’S PROGRESS
• At Preply, we’re all about creating life-changing learning experiences

Требования

• Full-Stack Expertise: This is a backend-heavy full-stack role, with approximately 60% of the work focused on backend development and 40% on frontend development
• 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
• Scalable Systems & Architecture: Experience designing and evolving large-scale web applications, including well-designed APIs, distributed systems, high-volume data flows, and scalable architectural patterns. Ability to make sound technical trade-offs that balance short-term delivery with long-term sustainability
• Technical Leadership: Demonstrated ability to influence technical decisions, drive engineering best practices, and contribute to architectural direction within your team
• Product & Business Impact: Strong product mindset with the ability to translate ambiguous business challenges into scalable technical solutions, using experimentation, data, and customer insights to guide decisions
• Proactive Problem-Solving: Comfortable navigating ambiguity and independently solving complex technical and product challenges, while knowing when to engage others to maximize impact
• Ownership & Accountability: High level of self-organization, ownership, and responsibility, with a track record of driving initiatives from concept through delivery and measurable outcomes
• Collaboration & Communication: Excellent collaboration, stakeholder management, and communication skills, with the ability to work effectively across engineering, product, design, and data functions. English level B2 or higher
• Engineering Excellence: Experience working in a cross functional team, contributing to code and design reviews, and helping raise the engineering bar through knowledge sharing and technical leadership
• Operational Excellence: Understanding of observability, reliability, monitoring, and operational best practices, with willingness to participate in your squad’s on-call rotation (1 week every 5 weeks)

Условия

• An open, collaborative, dynamic and diverse culture
• A generous monthly allowance for lessons on http://preply.com/Preply.com http://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!)
• 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
• 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

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