Expert Next.js & Node.js Developer Needed for Calendar Automation

We are looking for an experienced Next.js and Node.js developer for an urgent task on our educational visa consultancy website. The website is already developed. We need someone to work on the existing code and automate the calendar/appointment scheduling system. Tasks include: Automating the existing calendar Working with the Next.js frontend Working with the Node.js backend Connecting the calendar with existing APIs and database Managing appointment availability and time slots Handling booking and scheduling logic Fixing any existing calendar-related issues Making sure everything works properly in production Requirements: Strong experience with Next.js and Node.js Experience with calendar or appointment booking systems Good understanding of APIs and backend development Ability to work with an existing codebase Good debugging and problem-solving skills This is an urgent task. We need someone who can start immediately and complete the work as quickly as possible. When applying, please share examples of similar calendar or booking systems you have worked on and mention your availability to start immediately.