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Backend Developer in Madrid


35,000 - €45,000
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Job Description

Graphext - - is an advanced analytics solution to help businesses make better decisions based on data. We capture their data, enrich it and provide a powerful visual interface to find actionable insights about their customers, market and products.

We are backed by:

We are looking for a frontend engineer that has had previous experience in backend development or a backend developer that wants to make the jump and get into the world of modern frontend development.

If you have worked in data visualization, making video games logic or optimizing javascript code, we want to work with you!

This position will play a key role in the development of our main product, shaping analytically tractable problems from vague requirements, coding robust solutions to challenging problems, champion the adoption of good practices and being directly responsible for building the next main features of our product.

Having some previous experience working with React is appreciated but more important is having knowledge in computer science, algorithms, data structures and design patterns.


- Solid understanding of data structures and algorithms.
- Self-driven and a fast learner.
- Write clean Javascript code using ES6.
- Experience with CSS or the desire of learning how to mimic a good design.
- Solid understanding of the full web technology stack (e.g. HTTP, cookies, headers, asset loading / caching).
- Disciplined approach to testing and quality assurance.

Check our Twitter - - and Instagram to know more about us
We currently have our office in (5 minutes from Atocha Train Station in Madrid, Spain)

If you are sure you want to join the team but you don't feel this is the right position for you, check all other job positions currently open in:

About Graphext

  • Big Data

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