We offer development of Rich Internet Applications (RIA) based on existing well-tested frameworks including Spring, the Java persistence API (JPA) and Vaadin from version 7 up to recent LTS version 14.
Our approach is model driven development in a continuous integration environment with a microservice backed architecture. The used software stack probably describes best what you can expect;
Integration of android mobile devices into existing software is also offered. A focus is on the maintainable implementation of data transport from the server side to the mobile client and back.