Work with us

If you enjoy working in a fast-paced, driven, and high-performance work environment, MobiSystems is the place for you! As an equal-opportunity employer, we are proud of the people behind our products. MobiSystems is a friendly environment where employees are encouraged to speak up, challenge management, and contribute to the creative process of developing best-in-class mobile applications. We don’t merely accept innovation, we thrive off of it!

Available Positions

Who are we?

Mobile Systems (MobiSystems) is the only Bulgarian company that creates and sells its own mobile apps since 2001. It is the company behind OfficeSuite and File Commander – two of the Top 10 apps the Google Play Business category. These apps have been installed on more than 300 million devices in 197 countries. MobiSystems is also the creator of UBReader - an electronic book reader with more than 5 million downloads.

We co-operate with leading mobile device manufacturers to deliver productivity solutions directly to mobile users. Our manufacturing partners include: Sony, Acer, Alcatel, Amazon, Sharp, Toshiba, Huawei, and Kyocera, all of whom preload OfficeSuite on their mobile products.

Currently we have 100 employees in our Headquarters in Sofia. We also have offices in the US, China and UK.

Join us and taste the spirit of innovation in a well-established and solid company with constant growth year over year!

You're willing to work in the improvement and development of the ultimate software product? Do you want to smart up bulgarian product in Bulgarian software company with reclaimed position in the international market. We provide you a chance to do this. Great opportunity to participate personally in the improvement of our flagship product - OfficeSuite.

For our team is Sofia we are looking to hire: QA Engineer for OfficeSuite for Windows PC and iOS

Requirements:

  • Degree in Computer Science, Mathematics or related field;
  • 2+ years of previous experience in quality assurance, preferable with mobile applications;
  • Good understanding of common QA Terms and Practices; Sanity, Regression, STD/TestCase, Bug Life Cycle, etc.;
  • In-depth understanding of software testing processes and techniques;
  • Strong analytical and problem solving skills;
  • Passion for quality and great attention to detail;
  • Strong communication skills & willingness to work in a team;
  • Very good command of English.

Responsibilities:

  • Analyze and test new and existing software components and requirements;
  • Develop, publish and execute test plans;
  • Analyze test results to identify areas of concern or improvement;
  • Work closely with developers to guarantee component quality.

What do we offer?

  • Competitive salary in line with your qualifications and performance;
  • Access to the latest technologies and devices;
  • An active position in the development cycle of world-renowned mobile apps;
  • Full-time employment;
  • A young and friendly team to work with;
  • Work at the Headquarters of a leading provider of mobile productivity and business apps. and influence its products;
  • Excellent working environment and a great location – next to the metro station of Paradise Mall and the best park in Sofia;
  • Additional health insurance;
  • Multisport card;
  • Attendance and participation at regional technology conferences;
  • Company events & activities.

If you are interested, please send your CV to [email protected]. Only short-listed candidates will be contacted.

Senior Product Manager – new mobile product

We are starting a new project to develop an innovative software platform for free publication of and access to e-books via an integrated mobile reader. In short, think of it as “YouTube for e-books”. The project has been validated with Oxford, Collins and other leading publishers. The software platform will consist of: 1) An Android book reader, 2) An iOS book reader, 3) A web site, 4) A cloud-based backend

We are looking for an experienced product manager who can deliver this new product to the market!

Responsibilities:

  • Help put together the development team that will consist of both existing and new developers
  • Define the product features and priorities based on input from the CEO and other stakeholders
  • Create the feature specifications and wireframes together with the UX Designer
  • Be the SCRUM master and lead the Developers, QA’s and Designers to deliver regular product releases
  • Listen to customer feedback and improve the product accordingly

Requirements:

  • 3+ years of experience in a software product management or project management role
  • Experience with creating mobile apps and/or web sites for end-users
  • Combination of technical knowledge and business acumen
  • Experience with managing a distributed team and/or an outsourced project is an advantage
  • Proactive. Self-organizing. Able to multi-task and prioritize
  • Excellent English skills - written & spoken - level C1/C2
  • Living in Sofia or willing to relocate

What do we offer?

  • The chance to create a new global product – help define its direction, execute it and see the results!
  • Work at the Headquarters of a product company
  • A work-environment with flexible working time, no overtime and no artificial deadlines
  • Very competitive annual compensation – 40.000 – 80.000 BGN (after taxes) + performance-based bonus

Location:

Sofia; Bulgaria

If you are interested, please send your CV to [email protected]. Only short-listed candidates will be contacted.

Android developer – UBReader

WHO ARE WE?

MobiSystems (Mobile Systems) is the only Bulgarian company that creates and sells its own mobile apps since 2001. It is the company behind OfficeSuite and File Commander – two of the Top 10 apps the Google Play Business category. These apps have been installed on more than 300 million devices.

MobiSystems is also the creator of UBReader - an electronic book reader with over 5 million installs, Oxford Dictionary of English - 10 million installs, Quick PDF Scanner - 5 million installs, etc.

Currently we have 100 employees in our Headquarters in Sofia.

WHAT ARE WE LOOKING FOR?

We are looking for a Senior developer who can enhance the UBreader application with the many new features that we have planned for it.

Requirements:

  • 2+ years of experience with Android development of apps with complex UX requirements;
  • Proven ability to comprehend and evolve an existing code base in a practical manner;
  • Able to work in a small team consisting of one mobile developer (you!), one back-end developer, UX designer, product manager and a QA;
  • M.Sc. or B.Sc. in Informatics, Computer Science, Engineering or equivalent;
  • Living in Sofia or willing to relocate.

What do we offer?

  • Work at the Headquarters of a product company and influence one of its products;
  • A work-environment with flexible working time, no overtime and no artificial deadlines;
  • A great location - right to a metro station, Paradise Mall and the best park in Sofia;
  • Very competitive annual compensation – 50.000 – 100.000 BGN.

If you are interested, please send your CV to [email protected]. Only short-listed candidates will be contacted.

Senior Full-Stack Web Developer - new product

We are starting a new project to develop an innovative software platform for free publication of and access to e-books via an integrated mobile reader. In short, think of it as “YouTube for e-books”. The project has been validated with Oxford, Collins and other leading publishers. The software platform will consist of: 1) An (hybrid) Android book reader, 2) An (hybrid) iOS book reader, 3) A mobile responsive web site, 4) A cloud-based back-end.

We are looking for an experienced full-stack web developer who can deliver the web + back-end part of the project!

Requirements:

  • 3+ years of experience with developing server-side applications (regardless of the platform/technology). Java is an advantage
  • 3+ years of experience with client-side technologies: HTML5, CSS, JavaScript, jQuery, Angular, React, etc.
  • Experience with forming and leading a development team is an advantage
  • Strong analytical and problem solving skills
  • M.Sc. or B.Sc. in Informatics, Computer Science, Engineering or equivalent
  • Good understanding of English
  • Living in Sofia or willing to relocate

What do we offer?

  • The chance to create a new global product – help define its direction, execute it and see the results!
  • Work at the Headquarters of a product company
  • A work-environment with flexible working time, no overtime and no artificial deadlines
  • Very competitive annual compensation – 50.000 – 150.000 BGN

Location:

Sofia; Bulgaria

If you are interested, please send your CV to [email protected]. Only short-listed candidates will be contacted.

SENIOR UI/UX Designer – mobile apps and sites

WHO ARE WE?

MobiSystems (Mobile Systems) is the only Bulgarian company that creates and sells its own mobile apps since 2001. It is the company behind OfficeSuite and File Commander – two of the Top 10 apps the Google Play Business category. These apps have been installed on more than 300 million devices.

MobiSystems is also the creator of UBReader - an electronic book reader with over 5 million installs, Oxford Dictionary of English - 10 million installs, Quick PDF Scanner - 5 million installs, etc.

Currently we have 100 employees in our Headquarters in Sofia.

WHAT WE ARE LOOKING FOR?

We are looking for a senior UI/UX Designer to join our 6-person design team that works on our existing mobile apps, as well as new (hybrid) apps. You will be both challenged and helped by the other design team members who are all held to very high professional standards. The same will be expected from you!

Requirements:

      • 3+ years of experience with designing (mobile) web sites as well as mobile apps;
      • Proficiency in Adobe Creative Suite (esp. Photoshop and Illustrator);
      • Experience with prototyping tools, as well as Google Material Design;
      • Bachelor’s degree or equivalent in Graphic Design, Animation, or a related field;
      • Drawing skills;
      • Living in Sofia or willing to relocate.

Responsibilities:

      • Follow the latest trends and development in the app world – hot new apps, guidelines, platforms, competitor products, etc.;
      • Create UI/UX solutions (screens, icons, transitions, etc.), based on the wireframes and functional descriptions of the Product manager;
      • Work in a team together with the CEO/Product managers/Developers/other Designers in a constructive and open-minded manner. Refine a design until consensus upon an exception product design is reached;
      • Deliver all assets required by developers in a timely manner;
      • Provide additional visual design specifications (dimensions, fonts, etc.) when required;
      • Verify that all visual elements have been implemented as designed, including pixel-level quality checks.

WHAT DO WE OFFER?

      • The chance to shape the visual direction of leading apps on the Google Play Store and also launch new apps;
      • A work-environment with flexible working time, no overtime and no artificial deadlines;
      • A great location – right next to a metro station, Paradise Mall and the best park in Sofia;
      • Very competitive annual compensation.

If you are interested, please send your CV to [email protected]. Only short-listed candidates will be contacted.

Senior C++ Developer - OfficeSuite Core Engine

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 10-person team that builds the Core Engine of OfficeSuite.

Requirements:

  • 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
  • Living in Sofia or willing to relocate

What do we offer?

  • Work at the Headquarters of a product company and have a say in the direction of its products
  • 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
  • Very competitive annual compensation – 50.000 – 150.000 BGN

Location:

Sofia; Bulgaria

If you are interested, please send your CV to [email protected]. Only short-listed candidates will be contacted.

Senior .NET Developer

We are actively looking to hire a Senior .NET Developer in our Sofia office to join a new team dedicated to creating OfficeSuite for Windows. He/she will work closely with highly qualified professionals to develop our flagship application for Windows desktops from the ground up.

Requirements:

  • At least three years of experience in .NET/C# software development
  • Knowledge of Windows Presentation Foundation framework (WPF)
  • C++ professional experience will be considered a significant advantage
  • Degree in Informatics, Computer Science, Engineering or equivalent. Students in their final year may also apply
  • Strong communication skills & willingness to work in a team
  • Strong analytical and problem solving skills
  • Good understanding of English
  • Experience with Android, iOS, or Windows Mobile development will be considered an advantage
  • Living in Sofia or willing to relocate

Responsibilities:

  • Produce top quality code
  • Work closely with product managers and stakeholders to refine requirements
  • Work closely with engineering team members to improve product architecture while maintaining its integrity
  • Support and coach junior engineers

What do we offer?

  • Access to latest devices and technologies
  • Competitive remuneration package and benefits
  • Stable full time contract with opportunities for advancement with Mobile Systems Bulgaria
  • The opportunity to build something that millions of people see and use every day
  • Friendly working environment in a team of highly motivated people

Location:

Sofia; Bulgaria

If you are interested, please send your CV to [email protected]. Only short-listed candidates will be contacted.

Who are we?

Mobile Systems (MobiSystems) is the only Bulgarian company that creates and sells its own mobile apps since 2001. It is the company behind OfficeSuite and File Commander – two of the Top 10 apps the Google Play Business category. These apps have been installed on more than 300 million devices in 197 countries. MobiSystems is also the creator of UBReader - an electronic book reader with more than 5 million downloads.

We co-operate with leading mobile device manufacturers to deliver productivity solutions directly to mobile users. Our manufacturing partners include: Sony, Acer, Alcatel, Amazon, Sharp, Toshiba, Huawei, and Kyocera, all of whom preload OfficeSuite on their mobile products.

Currently we have 100 employees in our Headquarters in Sofia. We also have offices in the US, China and UK.

Join us and taste the spirit of innovation in a well-established and solid company with constant growth year over year!

What are we looking for?

We are looking for a Mobile developer who can enhance our UBReader application with great new features.

If you take pride in creating code for a worldwide leading company, you have proven experience in Mobile development and you are excited about the future of mobile applications, we’d love to meet you.

Requirements:

  • 2+ years of experience with Android development of apps with complex UX requirements;
  • Proven ability to comprehend and evolve an existing code base in a practical manner;
  • Able to work in a small team consisting of you as a Mobile developer, Back-end developer, UX designer, Product Manager and a QA;
  • M.Sc. or B.Sc. in Informatics, Computer Science, Engineering or equivalent;
  • Strong analytical, communication and collaboration skills
  • Living in Sofia or willing to relocate.

What do we offer?

  • Work at the Headquarters of a leading provider of mobile productivity and business apps. and influence its products;
  • Excellent working environment and a great location – next to the metro station of Paradise Mall and the best park in Sofia;
  • Possibilities for career development;
  • Full-time employment;
  • Additional health insurance;
  • Multisport card;
  • Flexible working time, no overtime and no artificial deadlines;
  • Opportunity for funding your product idea and turning it into reality;
  • Attendance and participation at regional technology conferences;
  • Company events & activities;
  • Very competitive annual compensation – 50.000 – 100.000 BGN.

If you are interested, please send your CV to [email protected]. Only short-listed candidates will be contacted.