Senior Full-Stack Engineer

Posted 4 Days Ago
Be an Early Applicant
Barcelona, Cataluña
Senior level
Edtech • Information Technology • Software
The Role
As a Senior Full-Stack Engineer at Preply, you will develop UI features, design scalable systems, and work on backend services while collaborating with stakeholders to deliver quality results. You will lead technical challenges in a dynamic team, focused on optimizing marketing efforts and achieving growth for the company.
Summary Generated by Built In

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. So far, 90,000 tutors have delivered over 20 million lessons to learners in more than 175 countries. Every Preply lesson sparks change, fuels ambition, and drives progress that matters.

Meet the team!

The Martech team develops systems and tools to scale marketing efforts, like SEM/Paid Marketing. We focus on creating and optimizing the infrastructure behind scalable marketing campaigns, prioritizing efficiency and innovation over direct contributions to Preply’s product. From automating workflows to optimizing budget allocation, our work bridges technology and impactful results.

Joining Martech means being part of a dynamic, high-impact team that drives the marketing engine behind Preply’s global growth.

Our primary programming language is Python, but we take a tech-agnostic approach. This means we welcome candidates with diverse technology backgrounds, including Java/Spring, Node.js/Express.js, Ruby/Ruby on Rails, Scala/Play, PHP, or Golang.

What you’ll be doing:
  • UI Development: Develop frontend features in React/Typescript, launched in our A/B experimentation framework.
  • Implementation: Take on the responsibility of writing services from initial concept to full-fledged deployment. 
  • Collaborating with stakeholders: Work closely with marketing to understand their challenges and convert these into technical solutions.
  • Raising the bar of our end-to-end solutions: Leverage previous experience to implement and socialize current best practices in frontend and backend.
  • System Design: Design efficient system architectures that align with team goals, constraints and schedules.
  • Prioritisation: Strike a balance between delivering fast results and maintaining high-quality, sustainable systems.
  • Chasing Excellence: Embody a mindset of mastery by continuously seeking to improve your craft, delivering work of exceptional quality, and inspiring those around you to aim higher.

What you need to succeed:

  • Full-Stack Expertise: This role is primarily backend-focused, with about 60% of the work on backend development and 40% on the frontend, requiring solid backend expertise and well-rounded full-stack engineering skills.
  • Exposure to front-end tech: A good understanding of React, Typescript, HTML5, and CSS.
  • Understanding Architectural Patterns: We operate on a large scale, requiring you to have experience in solving problems and building efficient services that can handle significant user traffic and data processing.
  • 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.

Why you’ll love it at Preply: 

  • Open, collaborative, dynamic and diverse culture.
  • Generous monthly allowance for lessons on Preply.com .
  • Learning & Development budget, including time off for your self-development.
  • Competitive financial package with equity, leave allowance and health insurance.
  • Access to free mental health support platforms.
  • Opportunity to shape the lives of learners and tutors from over 175 countries through language learning and teaching.

Our Principles

  • 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 today's best performance becomes tomorrow's 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 don’t 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 other's progress.

Diversity, Equity, and Inclusion

Preply is committed to creating a diverse and inclusive environment where people from all backgrounds can thrive. Different opinions and viewpoints are key ingredients in our success as a multicultural Ed-Tech company. 

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. Together, we are The World Class.

#LI-DZ1

Top Skills

Go
Java
Node.js
PHP
Python
React
Ruby
Scala
Typescript
The Company
HQ: Brighton, MA
4,283 Employees
On-site Workplace
Year Founded: 2012

What We Do

Preply stands with Ukraine and its people. We invite you to do the same. ??
Here are some ways you can help: https://preply.com/en/blog/stand-with-ukraine/

Preply is a global language learning marketplace, connecting tutors with millions of learners from all over the world.

Founded in 2012 and backed by some of the world’s leading investors, Preply is on a mission to shape the future of effective learning. Fueled by a belief that live engagement with a teacher is still the most effective way to learn a new skill, Preply is building a personalized learning space that will enable individual learners to reach their goals in the fastest way possible.

Powered by a tenfold increase in revenues over the last three years, Preply now has 300+ employees of over 44 nationalities based between Barcelona, Kyiv and US.

Preply is driven by a culture of experimentation and data-driven learnings, focused on building best-in-class consumer and enterprise solutions.
with locations in Kyiv and Barcelona.

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