Looking for Freelance or Studio to create a advanced interactive app


we are looking for a freelancer or team, to build an application similar to a interactive catalogue, but with advanced features as database connection, API and further processing with data.

A short briefing is available, can be send on interest. European partners preferred due to time zone. :frowning:
Please contact me by PM, will reply with the briefing.
Advanced skills in design & development will be required.
Some references with links or pictures would be helpful.