freelancer for firebase firestore apps full stack development nextjs development company react compiler optimization react signals state management hire full stack developer react micro-frontends web design company freelancer for ai powered web apps nextjs app development seo expert for hire react hook form performance forms react 18 features modern https://softwaredevelopersdescrip13467.blog2learn.com/83962245/how-software-developer-key-skills-can-save-you-time-stress-and-money