Full stack developer for Web based Product Development SaaS

We are looking to build a complete SaaS based product which is mainly for Gsuite or Gmail users.We are looking for a full stack developers or small dev team with strong experience in building scalable We are looking to build a complete SaaS based product which is mainly for Gsuite or Gmail users.We are looking for a full stack developers or small dev team with strong experience in building scalable web applications or SaaS products.The preferred technology stack should be NodeJS , ReactJSMore can be discussed later.