-complex (but also partial, e.g. parts of individual modules of systems) creating of IT systems from idea to production at every level (software, firmware, hardware) Which IT realms? Examples: -recruitment tests system which makes the recruitment process in big corporations more efficient -register of goods system for medium-size company -mobile app for uploading photos for company that provides hosting services -system for monitoring efficiency of construction workers -corporate software management system (based on Puppet, Chocolatey and Foreman) -network of IOT devices for measurement of field moisture -car onboard computer for a company providing renting cars services -automated tests for Android apps (with Appium, TestNG and Mockito) -automated tests for Web apps (with Selenium, TestNG and Mockito) -UX project of programme for photo editing -graphic design of newly emerging systems -CAD project, 3D model, technical drawings 2D and mechanical simulations of elements of the machines -hotel management information system -script that automates daily routine actions in accounting companies -Ethernet high capacity network in production plants -developed and introduced data security policy for a company that specializes in large-scale processing of personal data -monitoring system for company's fleet -e-commerce (online shops adjusted to customer's needs) -prototype device for testing customer’s hardware