King of App is looking for a Frontend programmer and a Backend programmer specialized in JavaScript to work in our development department. We offer a good working environment and an opportunity to learn and offer your knowledge to others, as well as to participate in interesting projects within the company.

We are a young company and familiar with the technology, so we would like you to share the same philosophy and the challenge we have ahead of us in leading the process of R&D and development of the restructuring of the company’s core.

What are we looking for?

Developers specialized in back and front, with a minimum of 2 years experience in JavaScript.

Your main functions will be to develop new features of the King of App front or back, fix bugs, create weekly sprints with management, maintain the Core of the project, supervise and manage the maintenance of the API of the platform, the command tool, perform the review of the automated compilation system, monitor the Marketplace uploads and manage the remote servers.

We need a developer with high Front-end knowledge in:

  • Angular.JS
  • GIT or other version control systems
  • ES6
  • Current Frameworks (Angular, React, Vue,)
  • CSS and Sass

Knowledge of Polymer, unit tests, integration and agile methodologies will also be assessed.

For the Back-end developer position you must have knowledge of:

  • Node.JS
  • MongoDB
  • GIT or other version control systems,
  • Jenkins
  • AWS

What do we offer?

If you are passionate about challenges, this is your site, King of App offers you a stable contract in a company that consists of a young and multidisciplinary team. The remuneration for each of the positions offered is 30,000 euros gross per year (may vary depending on experience).

November 16th, 2017

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We are looking for a Junior JavaScript Front-end Developer to work within our development department. We offer a good working environment and an opportunity to learn and offer others your knowledge, as well as participating in interesting projects within the company.

King of App was born in January 2014 to unlock the way applications are built, focusing on improving the relationship between companies and customers through an innovative platform. We design and develop an Open-Source tool for the professional community that allows you to build apps for everyone in a fast, affordable and agile way.

We work on an open source platform to have the ability to respond to each demand immediately. King of App is the arbiter of a community that ensures code quality while providing it with resources for unlimited creation. This allows us to connect any data source and customize applications with open access code.

Our philosophy is simple: software easy to learn. With this goal in mind, we decided to use widely known web technologies to ensure open access to a wide variety of people, while maintaining the high standard in mobile application creation.

The main functions will be:
Support in the development of new KingofApp front end functionalities.
Fix bugs.
Creation of functional modules for mobile applications using King of App’s Open Source technology.
Create templates for mobile application using King of App’s Open Source technology.


Knowledge of programming in JS.
Demonstrable knowledge with AngularJS.
Knowledge of GIT or other version control systems.
Knowledge of CSS and Sass.

It will be valued:

Knowledge of current frameworks (Angular, React, Vue)
Knowledge of ES6.
Knowledge of Polymer.
Knowledge of unitary tests and integration.
Knowledge at Jenkins user level.
Knowledge of agile methodologies.
Follow-up of good practices. Clean and legible code.
Commitment to meeting deadlines.
Knowledge of Amazon S3.
Knowledge of AWS.
Knowledge of NodeJS.
Knowledge of MongoDB.


Stable contract
Flexible entry times
Salary: 12 k- 22 K according to experience
Good working environment
Learning and professional projection

November 16th, 2017

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