Vyacheslav C.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

Hi there, I'm a professional system and network administrator with about 20 years experience. I'm a native Russian/Ukrainian speaker and based in Ukraine (UTC+2). I have a great experience in the following areas: - Data backups, Database/File backups, backup automation, and troubleshooting; - Building and configure mailservers: Postfix, Exim, PowerMTA, Sendmail, Mailcow; - Database server administration: MySQL, MariaDB, PostgreSQL; - Management and performance tuning: Samba, Apache, NginX, Squid, Tcpfoss etc.; - Monitoring: Zabbix, Munin, Icinga, Nagios, Grafana, Influxdb, Prometheus, New Relic, Whisper; - Maintenance/troubleshooting OS's: Linux (CentOS, Ubuntu, Debian, OpenSUSE, AlmaLinux, RockyLinux, NixOS, Armbian, Raspbian, CoreELEC/LibreELEC/AlexELEC); - Deploying and configure VPS based on OS's: CentOS, Debian, Ubuntu, AlmaLinux, Rocky Linux etc. for different purposes; - **Another software**: Moodle, BigBlueButton, Sympa, Jitsi, Eramba, pfSense, RocketChat, Zimbra, Nominatim, ZeroTier, MailCow, hMmail, Elasticsearch, Logstash, Kibana, DokuWiki, SVN, Mantis, Git, WHM/Cpanel, Puppet, Chef, Ansible, Docker, OpenVPN, Wireguard, Tinc, Rsync, Bacula, Spamassasin, Rspamd, Amavisd-new, Phpmyadmin, Postfixadmin, Roundcube, Virtualmin, Webmin, Xen, KVM, OpenVZ, Vagrant, TYPO3, Dovecot, Iptables, BIND, ProFTPd, Zimbra, Vsftpd, Lighttpd, fail2ban... - Hardware experience: Cisco routers, HP switches, Mikrotik routers; - Virtualization: Proxmox, VmWare; - Programming and shell skills: python, bash, zsh, Go; - Cloud services: Paperspace, Perimeter 81, DigitalOcean, AWS, Google Cloud, GoDaddy, OVH, Bluehost, 1&1, Linode, Bitnami, Host Europe, Vultr, Omnis, Hivelocity, Contabo etc. - Server migration; - Email migration.