Android Developer

Who are we?
MobiSystems is a product development company that creates and sells mobile apps since 2001. Our apps are installed on more than 450 million devices worldwide and preloaded on a range of mobile devices by Samsung, Sony, Alcatel, Acer, Kyocera, and many others.
MobiSystems is the company behind OfficeSuite and File Commander – both ranked amongst the top 10 Google Play Business apps. It is also the developer and exclusive publisher of a range of best-selling mobile dictionary apps based on data from Oxford University Press, Harper Collins and other top publishers.
Currently, we have over 180 employees in Sofia and offices in San Diego.

What are we looking for?
We are looking for a highly motivated Android Developer to join our team that develops OfficeSuite, File Commander and MobiDrive. Both OfficeSuite, File Commander have more than 100M installs in Google Play. Want to jump start your career? Join us!


  • 2+ years of experience with Java software development
  • Strong communication, analytical and problem solving skills
  • Proven ability to comprehend and evolve an existing code base in a practical manner.
  • M.Sc. or B.Sc. in Informatics, Computer Science, Engineering or equivalent will be considered as an advantage.
  • Good understanding of English
  • Experience with continuous integration and continuous delivery practices and tools
  • Kotlin & Java, OOP, data structures and design patterns
  • Unit and UI testing for Android applications
  • Experience with integration of third party SDKs and crash reporting tools

Considered a plus:

  • Experience with Android development
  • Experience with cloud message APIs and push notifications
  • Experience with different app stores (HUAWEI AppGallery, Amazon Appstore)
  • Experience with billing libraries (Google Play Billing Library)
  • Experience with Advertising libraries (Google Mobile Ads, Facebook Audience Network)

What you will use (and learn as needed):

  • Java 8, Android 4.4 to 11 (API level 19 to 30), AndroidX, Android Studio, Firebase, AdMob, Google Play Services, GIT, JIRA, Confluence, Sketch, Gerrit, Material Design, Appium

What do we offer?

  • Work at the Headquarters of a product company and have a say in the direction of its products.
  • Opportunity to join a highly-qualified and enthusiastic team
  • A lot of autonomy, flexible working time, no overtime and no artificial deadlines
  • A great location – right next to a metro station, Paradise Center and the best park in Sofia
  • Multiple secondary benefits: additional health insurance with dental care coverage, Sport program with office gym, home office, corporate discounts, etc.
  • Competitive salary with sign-on bonus with your first wage.
If you are interested, please send your CV to Only short-listed candidates will be contacted. All applications will be treated with strict confidentiality.