I have worked with about 30-40 different programmers around the world....

So I'm gonna tell you the truth about brilliant Snr devs and Engineers.

N:B I'm currently not a practising programmer coz i got frustrated (gist for another time)

Snr devs understands;

The base structure of the core programming language, which is C/C++

Once he/she fully grasps the concept of it. They can easily jump on any modern fuckery programing languages out there!

If you're doubting this theory

Lets talk about a real life scenario

If you're a building engineer etc.

If any architect brings in any Fancy design or whatever to build on.

They (engineer) might not have attempted such building project.

But ask yourself this question?

What gives them(Engineer) the big balls to take on such projects?

The engineer can take up such project because he knows the foundation structure is always a constant(K)

He/she could surf the internet, learn on the work or consult to build the architect's proposed design

This goes to show you, once the Snr dev get to know the main structure,

Any project is possible. Because all programming language have a definite structure they all follow!