System administrator linux

Our Ukraine, Kyrgyzstan, Belarus & Russiansoftware team need a sysad to take over the management of our dedicated server from our departing sysad.
We need to migrate from one OVH dedicated server to another.
Debian and Ubuntu server | Nginx and Apache | ProxmoxVE6 | NodeJS apps monitoring, Zabbix and Sentry monitoring | Atlassian software support
Let us know if email is an area you are good at. Email is a problem area, with many emails getting delivered to our client's spam/junk folders.
Please grade yourself in the following areas:
1. OS Debian Linux
2. Postfix
3. Dovecot + sieve scripts
4. PostgreSQL
5. Roundcube Webmail
Please let us know your hours of availability, we can be flexible. Once the migration is done, we anticipate you’ll typically need to be available for ~25 hours per month.
If you have a Resume/CV then please attach, else provide a link to your LinkedIn profile, and start your response with 'Please find my resume attached', and of course ensure that your CV/Resume is attached. An English CVis preferred, but Russian is ok.