The European Union has developed the European Register of Road Transport Undertaking. The purpose is for every member state to exchange information about professional transportation.
FOD Mobility Transport is responsible for the Belgian implementation, called B-ERRU. This was implemented in Cool-Gen technology. We got the assignment to migrate this to a Java + Angular JS project.
I had a very broad role, with lead dev responsibilities. I've helped coaching 2 ex-mainframers with their first steps in the Java world. The B-ERRU team was one of the nicest teams I've ever got to work with.