As a highly experienced and Microsoft-certified cloud architect and devops engineer who has extensive working knowledge of major Linux distributions including CentOS, I am an ideal candidate for your project. Over the years, I have designed and managed complex cloud and hybrid solutions, demonstrating an advanced understanding of networking, storage, security and monitoring. These skills directly align with your SFTP configuration needs on Amazon Hightail servers.
Beyond just my cloud expertise, I also bring to the table solid skills in automation using PowerShell, bash scripts, and more. With this proficiency, I'll be able to diligently complete the task within the stipulated time frame through screensharing. Additionally, being well-versed in network architecture and administration, especially with VPN and proxy server setup like the ones required for your project.
Ultimately,I am not only qualified but highly dedicated towards fulfilling client's requirements with quality workmanship. Thus entrusting me with your SFTP setup via screenshare would make certain that your second account is configured flawlessly for both password and SSH key authentication methods while ensuring 'Read and Write' access is maintained accurately. Let's have a chat to discuss the specifics of your project in detail.