freelancer for firebase firestore apps react streaming ssr nextjs development company back end developer react compiler optimization react suspense data fetching freelancer for multi-language app support dotnet core development freelancer for biometric time tracking freelancer for langchain agent apps node.js development react development react transitions animations react lazy loading https://sethkfau999888.luwebs.com/37145063/the-best-side-of-software-developers-winnipeg