Full Stack MERN Developer Needed For Existing project

I'm seeking a skilled MERN stack developer to assist with my partially completed project. The project V1 has been completed but now v2 features and some bug fixing is required. This role will encompass working on both the frontend and backend. Key Responsibilities: - Enhancing and implementing system functionalities - Improving API integrations - Overseeing and refining database management Ideal Skill Set: - Proficiency in MERN stack (MongoDB, [login to view URL], React.js, Node.js) - Experience with user authentication systems - Strong skills in API integration - Excellent database management abilities Please provide examples of previous MERN stack projects you've worked on, particularly those involving user authentication and API integration.