In a span of 6 months, I completed two full upgrades of custom systems with about 1000 users, as well as three web applications and their mobile versions.
C#, xamarin, Vaadin 8
Automated testing for airline personnel which also keeps the complete database of questions, creates tests and records results.
MS SQL Server
Mobile app for field operatives in FMCG retail that included a back-end web service connected to the equipment. It offered total control and higher worker productivity and was used for 7 years before being retired. C#, MS SQL Server
Radio station automation system that enables manual and automatic playback of content while also storing and loading playlists. It also kept the database of tone recordings and was finished in 2 months. C#, MS SQL Server
Credit card authorization with a
SOAP web service front end with a ISO8583 protocol communication to the authorization server, plus a web service that helps with the authorization. Was in use for 9 years. C#, MS SQL Server
Desktop application the administration process and newspaper subscriptions, including invoicing and shipping. Using fast prototyping techniques, the 2 of us developed it in just 4 months. MS VisualBasic 6.0, MS SQL Server
2 important CRM modules for a major Telecom, one for promotions and one for customer benefits along with a custom architecture anti-fraud system. Jquery, C#, Oracle
Implemented 4/5 modules for a web service system for spending and reservation tracking, then worked for 6 months to migrate the whole system from Java EE 5 to Java EE7. WebLogic Java EE and Dropwizard.
Participated in the development of solution design, implemented by design web and central backend system for the optimal calculator combined over 200 dynamic price lists from three countries (CRO, SRB, and UK).