Hi,dear client. I am very interested in your project - 'serverless website, embedded popups; user logins; integrations: email, SMS, & slack'. Because I have been familiar with similar projects. Perhaps you need brilliant web and software developers. I will always follow you.
I am perfect in scopes such as Aws Lambda, React.js, Wireframes, Javascript, Vue.js and so on.
Contact me, please, so we can start your project immediately.