Choosing a remote developer to close the gap in the team's expertise is not an easy task. This is proven by numerous posts on Reddit where business founders are confused about the offers on the market and are afraid to make a mistake. In such cases, I always advise you to contact a reputable company. This is what I do.
That's why, I want to recommend you Node.js developers from a company that has repeatedly helped me with my projects. Feel free to check their services and ask me any questions.