Senior iOS Swift Developer - New App

Who are we?

MobiSystems is a product development company that creates and sells its own mobile apps since 2001. Our apps are installed on more than 450 million devices worldwide.

MobiSystems is the company behind OfficeSuite and File Commander – both ranked amongst the top 10 Google Play Business apps. It is also the developer behind Aqua Mail - an Android email app with over 5 million installs.

Currently, we have over 150 employees in Sofia and offices in San Diego, Stockholm & Tokyo.


We are looking for a Senior iOS Developer to create, deliver and evolve a new e-mail client application, starting from scratch.


  • Experience with Swift;
  • Experience with Visual Studio / Xamarin / C# / .NET Embedding will be considered a significant advantage;
  • Strong analytical and problem solving skills;
  • Good understanding of English;
  • Strong communication skills & willingness to work in a team;
  • Degree in Informatics, Computer Science, Engineering or equivalent.


  • Build a new iOS app based on an existing "mail engine" library
  • Take responsibility and ownership for the technical application architecture and code quality
  • Work closely with product managers, designers and stakeholders to clarify the product requirements and propose practical solutions;
  • Support and coach future new engineers in a team lead role.

What do we offer?

  • Stable full-time contract with the potential for a team lead role as the team grows.
  • The opportunity to build something that millions of people see and use every day;
  • Friendly working environment in a team of highly motivated people;
  • Work at the Headquarters of a product company and have a say in the direction of its products;
  • A lot of autonomy, flexible working time, no overtime and no artificial deadlines;
  • Multiple secondary benefits: additional health insurance with dental care coverage, sport cards, extra days off, home office, etc.;
  • A great location – right next to a metro station, Paradise Center and the best park in Sofia.
  • Very competitive compensation – 6.000 – 9.000 BGN.
If you are interested, please send your CV to Specify the Job Reference Code. Only short-listed candidates will be contacted.