freelancer for app refactoring and cleanup react compiler optimization freelancer for multi-tenant saas apps web design web programming hire full stack developer dotnet developer dotnet core development nextjs app development web development firm web design and development react development mobile-friendly website react virtualized rendering react memoization optimization react native https://messiahlrvvw.elbloglibre.com/36409869/the-basic-principles-of-are-game-developers-software-developers