Android Developer

About us !

We believe that professional telephony should be simple and intuitive !

How do we do that? By providing “state of the art” communication solutions to optimize your everyday business calls. 

Onoff is a fast-growing SaaS telecom company that provides communication solutions to businesses worldwide. We work hard to provide professionals with an easy-to-use cloud-based-communication system connected to your favorite tools.

Our team of 100 passionate people works from all around the world, with offices in Paris and Tallinn. We provide our employees an environment where they can grow & flourish along with the company. 

Job Description

Responsibilities include:

  • Setting up & changing elements of the UI by working together with designers;
  • Creating new innovative animations / transitions between views;
  • Creating high quality graphics;
  • Working with local storage, like SQLite;
  • Working with the server-side team that has well documented API;
  • Working with VoIP and other complex solutions;
  • Building up the architecture and models of the application;
  • Writing tests for new functionalities.

About you !

What you need to have:

  • Experience in dealing with Android application development using android SDK;
  • Design and architecture knowledge, as well as familiarity with object oriented design patterns;
  • Strong Java skills;
  • Interaction and design know-how;
  • A self-motivated personality, ready to explore new technologies, applications and environments;
  • Excellent attention to detail;
  • A self-starter attitude, be highly motivated and a team-player;
  • Be fully comfortable working in the English language, both written and oral.


It would be nice if you have:

  • Experience in working with telecoms or social projects;
  • Experience with Reactive Programming
  • Experience in carrying out unit tests;
  • Experience of delivering an android application from 0 to Google play level;
  • Knowledge of SQL and/or willingness to learn;
  • A brave attitude, you are not afraid to solve deep technical challenges, working at a whole new level on a huge scale;
  • An intrinsic curiosity regarding technological innovations and are always on top of the latest trends.

Recruitement process

  • Interview with Océane, our HR
  • Interview with Dylan, our Team Leader UK

Interested by the opportunity ?

To apply, please click on the link below and send us your CV by email.