Hi there,
I am an expert Node.js developer with more than two years of experience. I can develop the application software you are looking for. The timeline looks reasonable considering it will be a small to medium sized project. To get started, share the following with:
1. The main functionalities of the application
2. Target environment (Web or Desktop)
Without more details about the business logic and the features it is really hard to add a proper budget and timeline. Share the relevant information in chat and I will quickly provide a written strategy document with timeline and estimated budget. Let me know what you think of my offer. Thanks for your time and consideration.