Would changing companies render my resident permit in Spain invalid?

Greetings,

I am a non EU citizen and I have an indefinite work contract and a temporary residence permit In Gran Canaria, Spain.

I’d like to know If my residence permit will become invalid if I decide to change companies. Would the process be less complicated than when I initially obtained it? And is there a way to get a “Right to live and work in the EU” independently?

thank you and warm regards