Max S.
Infrastructure and Security Expert / Full Stack Developer
✅ The Best Freelancer 2017 / IT & Networking / Dnipro City, Ukraine ✅ 10000+ working hours | 100% Job Success Rate | 99% Recommendation Rate ------------------------------------------------------------------------------------------------ Self-motivated professional with strong work ethic and responsibility to my clients. My main professional direction is an administration of servers and services (for virtual/dedicated web hosting, networks, application servers, etc) under Linux, Mac OS X and FreeBSD. I have 20+ years experience in *nix'like systems. I've been working for hosting companies, ISPs, web studios, software development companies and other small, medium and large business on over the World. My priority is to be always meet needs and deadline of my clients. I'm honest and fair. Our acquaintance may be successful if you need a specialist for assistance (including but not limiting) for: ✔ Common system setup and configurations for: -- Ubuntu/Debian/CentOS/RHEL Linux, -- FreeBSD, -- Mac OS X Server, -- Windows Server, and other; ✔ Cloud Hosting Services: -- Google Cloud Platform, -- Amazon AWS, -- DigitalOcean, -- Linode, and other; ✔ Virtualization technologies based on: -- VMWare ESXi/vCenter Server and other VMWare products, -- Citrix XenServer, -- Qemu KVM, -- Debian Xen, -- LXC containers, -- VirtualBox, -- Proxmox including cluster setup, -- OpenVZ containers and other; ✔ Web-hosting servers software adjustments: -- Nginx, -- Apache, -- Haproxy, -- MySQL, -- PostgreSQL, etc; ✔ Web-hosting control software: -- cPanel/WHM, -- Plesk, -- DirectAdmin, -- ISPsystem.com products, -- Billing system WHMCS, etc; ✔ Mail systems including configuration for: -- Postfix, -- Exim, -- Dovecot, -- Roundcube, -- Kerio Mail Server, -- Zimbra Mail Server and other; ✔ VPN technologies: -- OpenVPN, -- L2TP/IPSec, -- PPTP, -- Softether, and other; ✔ Monitoring systems like Zabbix, Cacti, Munin, etc; as well as: ✔ Linux HA Cluster / DRBD / load balancing; ✔ Domain name systems (DNS); ✔ File servers (Owncloud, FTP, Samba); ✔ Firewall (ipfw, iptables); ✔ Network access servers (mpd5, ppp, pppoe); ✔ Routing devices (Mikrotik, BDCOM, D-Link); ✔ Web-sites migration; Mac OS X and other Apple creations fan! I'm living in time zone GMT+2 (Kyiv, Ukraine), but I work in your timezone. Thank you in advance for consideration. Take a look to my portfolio below. I'm looking forward to work with you soon.
Earnings and projects
Last 6 months ÷ 6
Read daily since Oct 23, under 30 days
Billed in all: $928,633$929k
$42k in the last 6 months
Across 108 contracts
Earnings, last 30 days
Tracked from Oct 23, 2026.
Skill rankings: #1 in 7 skills of 10
Rarest: top 0.13% in Database Administration, of 797. Ranked by MRR among everyone on Upwork with the skill.
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