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Have you ever wanted to experience working in a Lean Startup? This is your chance.

We are looking for a Back-End Developer to help us build on our next-generation technology.



  • Implementation of security and data protection
  • Integration of user-facing elements developed by a front-end developers with server side logic
  • Optimization of the application for maximum speed and scalability
  • Design and implementation of data storage solutions
  • Building of reusable code and libraries for future use


Proficient understanding of:

  • Server-side CSS preprocessors, such as LESS and SASS
  • Accessibility and security compliance
  • User authentication and authorization between multiple systems, servers, and environments
  • Integration of multiple data sources and databases into one system
  • Management of hosting environment, including database administration and scaling an application to support load changes
  • Data migration, transformation and scripting
  • Setup and administration of backups
  • Outputting data in different formats
  • Understanding differences between multiple delivery platforms such as mobile vs desktop, and optimizing output to match the specific platform
  • Creating database schemas that represent and support business processes
  • Implementing automated testing platforms and unit tests
  • A back-end programming language (PHP, Python, Ruby, Java, .NET, JavaScript)
  • Code versioning tools, such as Git
  • OWASP security principles
  • “Session management” in a distributed server environment

What We Offer
Beside giving you the life opportunity of working in a fast growing technology company in one of the most popular cities in the world, we also offer:

  • An environment to evolve your capabilities – we’ll help you find your strengths so you can get the best out of yourself and improve your skills
  • Diversity in tasks and responsibilities which can be influenced by your preferences
  • Training in how to professionally represent a company at business events
  • Opportunity to work with and be supervised by the CEO of the company
  • Work in a young team of international students in one of the highest skyscrapers of Barcelona


If you have any questions regarding the tasks, procedure, company and/or the internship as a whole please don’t hesitate to contact us at cxsuccess@marketeer.co.