Senior C++ Developer - OfficeSuite Core Engine

Who are we?

MobiSystems is the company behind OfficeSuite and File Commander – top 10 Google Play Business apps. Our apps are installed on more than 300 million devices worldwide and preloaded on a range of mobile devices by Sony, ZTE, Alcatel, Amazon, Sharp, ACER, Huawei, Kyocera and many others.

MobiSystems is also the developer of OfficeSuite for Windows Desktop.

Currently we have ovеr 120 employees in our headquarters in Sofia. We also have offices in the San Diego, Hong Kong.

Who are we looking for?

OfficeSuite is available for 3 platforms - Android, iOS and Windows PC. These 3 platforms share a common engine - the "heart" of the product.

We are looking for a Senior C++ Engineer to join our team that builds the Core Engine of OfficeSuite.


  • At least 3 years’ experience in C++ (11 or later) software development;
  • Experience with building complex multi-threaded multi-platform libraries;
  • Strong analytical and problem solving skills;
  • M.Sc. or B.Sc. in Informatics, Computer Science or Engineering is a must;
  • Experience with Android, iOS or Windows PC development is an advantage;
  • Good understanding of English.


  • Experience in .NET/C# software development;
  • Knowledge of Windows Presentation Foundation framework (WPF).

What do we offer?

  • Work at the Headquarters of a product company and have a say in the direction of its products;
  • You will be joining an incredibly cutting edge team who are in the throes of some highly; innovative research and development projects;
  • Write complex high-quality code that will be used by millions of users around the world;
  • A lot of autonomy, flexible working time, no overtime and no artificial deadlines;
  • Multiple secondary benefits: additional health insurance, sport cards, great location, extra days off, home office, etc.
  • Very competitive annual compensation – 50.000 – 150.000 BGN.
If you are interested, please send your CV to Only short-listed candidates will be contacted. All applications will be treated with strict confidentiality.