Back-end/data Engineer

hace 2 semanas

Barcelona, Barcelona, España Preply A tiempo completo

At Preply, we are unlocking human potential through learning
:

We believe learning with a great tutor is life-changing.

That's why we match online tutors from across the globe with learners and empower them to create live language classes with AI-powered tools and learning materials.

This is how we deliver progress, create engagement and keep our global community of learners motivated. So far, over 32,000 tutors have given more than 15 million lessons to learners from over 175 countries.

The
Preply Engineering Team provides the tools to help unlock human potential through learning.

At Preply, we release our product 50-60 times per day by leveraging top-notch CI/CD processes.

As a fast-growing company we have diverse technical challenges (sometimes we even write about them on our Engineering Blog) that will allow you to develop your skills at scale.


Meet the team:


Here at Preply, we a/b test
most of our changes on production, both product and technical, before scaling them to all customers.


Experimentation Squad owns the whole infrastructure that is used to make those business-vital decisions.


You, as a part of
Experimentation Squad, will develop systems that are used by all product and platform squads in their daily work in the decision-making process; tackle problems that occur in highly loaded systems, such as cross-experiment correlation, data consistency, event deduplication, etc.; design and monitor architecture in a way that will guarantee stability and reliability in the highly variative environment where 100+ developers deploy production 60+ times a day.

This position is in the intersection of Data, Development & Research. You'll use Data skills to write ETLs, setting up alerts on data.

Research skills will help to dive deeper in the data and experiments, to identify what is going wrong, how to fix it and how to prevent it from happening again in the future.

Finally, you'll use Dev skills to automate routine, iterate on our A/B system core and A/B visualization tool.

What you'll be doing:

  • Establish credibility with the quality of the a/b testing system
  • Own Data pipelines and ensure Data consistency
  • Support & develop a/b testing visualization tools
  • Collaborate with product teams to help them tackle issues with a/b testing
  • Introduce a/b testing into new areas (Marketing, etc.)

What you need to succeed:

  • Strong knowledge of Python, at least 3+ years experience.
  • Strong skills in SQL.
  • Proficiency with databases (understanding internal mechanisms).
  • Experience working with webframeworks, like Django or Flask.
  • Addiction to quality control (we don't have QA/QC engineers).
  • A passion for analyzing data to inform decisions.
  • Readiness to take responsibility of systems (ownership).
  • Desire to solve business problems instead of just doing tasks.

Why you'll love it at Preply:

  • Open, collaborative, dynamic and diverse culture.
  • Learning & Development budget, including time off for your selfdevelopment.
  • Competitive financial package with equity, leave allowance and health insurance.
  • Access to free mental health support platforms.
  • Flexible setup with the option of paid relocation to Barcelona, or working remotely within a close time zone.
  • Opportunity to shape the lives of learners and tutors from over 175 countries through language learning and teaching.
But there's more. At Preply, we focus on doing better every day - pushing the limits of what we know is possible. And we know our purpose is strong.

We're re-engineering education, providing outstanding experiences for our global community of language learners and building authentic connections across the world.

You'll get to be a part of our online learning innovation


Propelled by a tenfold increase in revenues over the last three years, thanks to our best-in-class consumer and B2B products,
Preply is now leading the online language tutoring segment globally and has 500+ employees of over 50 nationalities based across Barcelona, Kyiv and the US.

We do extraordinary things at Preply - and we want you to join us.

If you're committed to curiosity, love experimentation and relish the challenge of exploring new ideas, then it's time we say:

Welcome to The World Class.

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 fastpaced 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 clea

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