freelancer for supabase postgres apps front end developer nextjs developer for hire react compiler optimization website development web design website design responsive web design freelancer for headless ecommerce sites react component-driven development freelancer for biometric time tracking zustand react state library react hook form performance forms react hydration strategies https://softwaredevelopersjobsnea24567.dgbloggers.com/36890769/the-best-side-of-software-developer-kpi-template