In what language to write a cloud server?

Question

Data storage

Hello, friends. An idea crept into my head that I really want to bring to life. I want to make a cloud service (clone) of any of you known (dropbox/googledrive etc).
I understand that this is a BIG cost, but the question is different. What skills do I require from the programmer(s)? What skill set do I need, thanks!

Answer 1

Programming languages ​​are secondary in this case.
It is worth focusing on cross-platform solutions to save resources.
Client programs must work for different types of devices: mobile, desktop, etc. For mobile operating systems, it will need to be implemented for at least two platforms: iOS, Android. It can be implemented on different technologies. Usually these are Java, Swift, Dart languages.
For desktop cross-platform applications, C ++, Java are often taken.
Such services should be designed for a large number of users, traffic and stored data.
For the most part, the main challenges will be in building a scalable system on hosting capacities. Of the required languages, only SQL (working with a DBMS) will almost certainly be present. The rest is how it goes.
Specialists will be required: system administrators, DevOps, backend, inf. security. And, of course, design engineers (software architect) and those who will manage all the specialists.
You will also need to build a billing system. Data analysts (BI, Data Scientist, ...) will be needed to understand the management direction of the company and feedback.