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Front-End Developer

Posted on Sep 25 by MarsBased

MarsBased is a development consultancy from Barcelona offering end‑to‑end web & mobile apps built with Ruby on Rails, Angular and JavaScript. We believe in remote work, quality over quantity, clean code and agile development methodologies.

We’re looking for a senior frontend developer to join our Martian team, with strong knowledge of HTML, CSS and JS frameworks such as Angular, React or React Native.


  • Communication with clients and teammates.
  • Self-management working remotely.
  • Good taste for web/mobile design.
  • Regular contributor to open source projects.
  • Positive attitude towards new challenges.
  • Attention to details.
  • Fast learner.
  • Proactive & able to work alone on projects managed by you.
  • Fluent in written & spoken Spanish.
  • Fluent in written & spoken English.


  • Strong HTML and CSS knowledge, including SASS and responsive design.
  • Strong JavaScript knowledge. Experience with one or more of the following frameworks: Angular, React and React Native.
  • Strong Git knowledge.
  • Familiarity with test-driven development (TDD).
  • Experience working with designers.
  • Experience working with backend developers.
  • Be able to build software that scale over time, in both performance and maintainability.
  • Good software writer. Not only do we want you to solve problems, but we also want to understand your solutions.


  • You may only apply for this position if you reside in Europe.


  • Competitive salary.
  • Work from home or from a coworking space.
  • Flexible working hours.
  • Amazing coworkers.
  • Modern tech stack and methodologies.
  • Transparency and quality-oriented culture.
  • Company activities.


  • Between €27K and €36K, depending on experience.

How to apply?

If you are looking for a new challenge in your career, drop us a line at work@marsbased.com and tell us why you are the perfect fit for MarsBased.

Also, make sure you include the following line in the body of the email: "Jim Carrey is my favourite actor".

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