Design and development of a client application with native Look and Feel on Mac. Main development areas: design and optimization of internal caching mechanisms, application performance improvement, effective communication with servers Risk management by monitoring production environment, reacting before things get out of control Direct impact on product shape based on business needs and feedback received directly from our customers. Development of multi-functional client application. Main challenge and complexity of our app lies on serving hybrid access and smart management of a content stored on the cloud, company servers and user local storage.