Expert Full Stack Developer

I'm looking for an expert full stack developer to work on a project that requires equal focus on both frontend and backend development.

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* THE PROJECT HAS SENSITIVE CONFIDENTIAL CODES AND DATA! *
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* PLEASE DO NOT BID IF YOU CAN'T SIGN NDA and PROVIDE proof of identity!!! *
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30% of the job is almost done and will be delivered to you after signing NDA and proof of identity. However, you need to consider you will take over the project from 0 to 100% and the exisiting codes are there to support your speed.

You need to show reliability and trustability and of course expertise within the field.

PLEASE PROVIDE SAMPLE REFERENCES:
The 3 major areas you need to be able to handle:
1- Reactflow dashboards:

Key Backend Functionalities:
- User Authentication = Super admin, admin, users etc.
- Database Management = collecting data and processing them and sending data to control and monitor devices
- API Development
- AI integration = AI/ML

Environment:
You need to deploy codes and test first on our Github and then deploy and test them with the actual devices

Ideal Skills and Experience:
- Proficiency in Node.js and Python
- Strong experience with Next.js and Reactflow
- Expertise in user authentication, database management, and API development
- Ability to work collaboratively and communicate effectively

The idea of this project is to find a reliable source so after we build the trust we can create a long lasting relationship and the work will continue.

Please provide samples of relevant work and a brief overview of your approach to this project.