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Web Application Software Engineer in Barcelona


Est. Salary
30,000 - €40,000
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Job Description

Koalaboox is a fast-growing FinTech with > 40 employees. We offer a SaaS platform allowing small business owners to manage their business while providing a seamless financing solution.

With > 200 Mio € financing volume/year, the Koalaboox invoice financing solution is one of the most efficient worldwide.  It is based on proprietary risk algorithm and machine learning.

In order to further develop our growth in Europe, we’ve closed a Series A fundraising of 3M€ last February.

Based in Barcelona and Belgium we are looking to double the size of our development team in our Barcelona office in the coming months and are looking for great software engineers to join our experienced team.

Over several years, we have developed a great platform that has helped thousands of SME´s and freelances to make their business dreams a reality. This is now the right time to take our products to the next level, offering our clients a superior platform to go even further.  

We are hiring just the best people. The ideal candidate is highly motivated, is willing to take part in a disruptive Fintech adventure being part of a cross-functional development team involved in building software solutions following XP and Agile practices.  

Are you up for the challenge?    





  • Deliver secure, robust and scalable applications that fulfill customer needs

  • Participate in the whole process from the idea to production

  • Understand the goals of the company and provide technology solutions aligned to them

  • Share technical and business knowledge across the team and the company





  • +3 years experience programming in OOP backend languages (PHP, Java, etc)

  • MVC  

  • Javascript

  • MySQL, SQL-based relational databases

  • Experience with project version control systems (i.e.: Git)

  • Knowledge about setting up and using a DevOps framework.

  • Experience in implementation of unit testing and knowledge in related frameworks and technologies

  • Experience working with Microservices architectures  

  • You strongly believe in good programming practices. XP and Clean Code are a must for you.

  • You consider the team accountable for the quality of the product

  • You strive to improve continuously the process and the code

  • Results-oriented – driven by purpose;

  • You have an analytical mind and are autonomous;

  • You are learning and self-improving permanently;

  • Fluent in English;

Is a plus:


  • Experience in Laravel

  • Experience in Vue.js

  • NoSQL, Big Data  

  • You practice TDD and can teach others

  • AWS architecture and platform experience

  • Experience in the financial industry (Banking or Fintech); Knowledge in Credit and Risk

  • Experience in machine learning;





  • You are a crucial member of a dynamic and competent team, developing innovative products and solutions for a digital FinTech product suite

  • You influence and participate in top-priority projects that have a real impact.   

  • Opportunities to grow with your achievements, results and the organization.   

  • A competitive salary, with additional benefits and  yearly increase.

  • Work for a company that supports your career growth and personal development


About Koalaboox

  • Fintech

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