"CC Live" Software Update for Equestrian Sports

We are a Company for Sport-Timing, specially for Equestrian- and Ski Sports.
The software for Equestrian- and Ski-Sports already exists^. We need a update for the Equestrian "CC" (Concours Complet). CC is a mix of Equestrian Sport with Dressage, Jumping and Cross.
We want the Live Timing on our Server. So everybody all over the world can look the current athlet, start lists, rank lists etc.
From the Main-Software "Equestre Professional" we have a small Upload-App (local or on a other PC in the LAN) to upload the timing information to our website in live.

What we need:
- Software update (Uploader to the website for Equestrian and Ski)
- A beautiful modern layout on the webpage also for mobile phones
- Software and website is multilingual, minimum English, German, French and Italian
- Here you can see Version 1.4 of Equestre Pro Live: equestre.zeitmessungen.ch
- Some little extensions...

- We are the owner of the codes!
- We don't pay any upfronts or initial costs
- Please only real Professionals and fullstack developer

- Further Updates guaranteed also for Ski Nordic, Multi-Sport, Circuit Pro and Rally Pro
- Estimated time to finish this project: < 10h