Need API Developer to work on Mobile App API

I am currently having a mobile app developed for a small social network. The API has already been developed and put together the for this mobile app but currently there are some small issues that need to be fixed or improved. I need an API developer to fix these small API issues and help work on the project. Current API is on AWS Below are a few issues (endpoints needed to be created or fixed): • Apple sign in and google sign in don’t work cause there’s no endpoint for it. • Posting of stories and articles endpoints aren’t working on my end • Notifications endpoint doesn’t exist. Notifications endpoint doesn’t exist. • The pending issues are fetching and displaying the right name and details on login and/or sign up. Posting of articles and comments. so the API is for a mobile app being developed. which is for an extension for a small social network that started out as a website platform. the purpose of the social network is based around health and wellness issues and users can post "stories' which are like mini blog posts and also share news which are just finding online news articles and sharing the url of those news articles in regarding to posting stories and articles, for stories, users will have a page where they post a story meaning title of story, they select a "community category" of that story like (alcohol addiction, heart disease, diabetes, etc), then will type in the main content of that post that can include pictures, youtube links, etc and also hashtags to post to the general website feed. for article posting, they just copy and paste the url from an article they find and post it and it will show up on the platform by showing the article title, the first paragraph of the article and article link, then there is a comment section on the article post page where people on this social network can have conversations around it, and if the user wants to read the entire article then can click the article link and it will send them to the browser to view.