react server components freelancer for supabase postgres apps react concurrent mode back end developer nextjs seo optimization react suspense data fetching freelancer for multi-language app support freelancer for pixel perfect development dotnet core development react recoil state management reactjs freelancer freelancer for openai integration react hook form performance forms https://jaidenmhsmz.blogginaway.com/37117060/how-software-developer-key-skills-can-save-you-time-stress-and-money