I am your ideal candidate for this project as it marries two areas of expertise that I have excelled in: Linux Engineering and Full Stack Development. My experience with Ubuntu, Centos, Kali Linux, Debian, and Rocky Linux aligns perfectly with your need for advanced knowledge in VPS configuration and administration.
Moreover, my hands-on experience with Amazon Web Services will ensure that the chosen VPS option - be it AWS, Contabo or a more cost-effective alternative - is optimally implemented. Additionally, setting up the server OS and resource tuning is a routine task for me.
The other crucial skill you've highlighted is familiarity with Zextras Carbonio CE 24.7.1. I've consistently been able to exceed client expectations during Zextras integrations to accommodate multiple domains and aliases on a single server. Furthermore,I can carry out extensive security measures such as firewalls and access control to safeguard your system.
Lastly, proficiency in React.js and Node.js from my Full Stack Development background could be leveraged in API design for account creation, management, blocking and more. My ability is not simply to code but to leverage the latest tools and techniques efficiently which can be put into play for hosting securely on cloud storage platforms like S3 Glacier or others that meet budgetary constraints. Let's make your vision a reality!