Serhii V.
Rivne, Ukraine
100%
Job Success
Top Rated Plus
Systems Administration, DevOps
$77.00/hr
Servers administration, security hardening, malware cleanup, prevention of hackers intrusion, DevOps, DNS, email, web hosting setup, migration, troubleshooting, recovering, monitoring, automation, scripting, supporting, writing documentation.
5+ years on Upwork, individual freelancer. I offer reasonable services in areas:
Security:
• malware cleanup, websites recovery;
• penetration testing;
• security hardening for servers and websites;
Web hosting:
• websites migration and web hosting setup;
• hosting optimizing for speed and security, troubleshooting;
• DNS configuration and troubleshooting, Cloudflare automation;
• setup and support hosting panels (Plesk, cPanel/WHM, HestiaCP, DirectAdmin etc);
• deploy and support various CMS (WordPress, Drupal, Typo3 etc);
• cloud hosing (VPS) setup and automation (DigitalOcean, Linode, Hetzner, Vultr etc);
DevOps and Clouds:
• automation scripting with Bash, PowerShell;
• clouds service and infrastructure setup (GCP, AWS, Azure);
• virtualization (Proxmox VE, Hyper-V, XEN);
• Docker, Podman;
• Kubernetes;
• CI/CD pipelines.
IT infrastructure administration tasks:
• monitoring and maintain of servers and infrastructures;
• DNS configuration, mail servers;
• mesh networks (Netmaker, Zerotier etc), Wireguard, VPN (IPSec);
• servers and workstations administration (Windows, macOS, Linux);
Systems and services troubleshooting, data recovery:
• OS restoring and boot recovery;
• recovering of data, file systems and RAID;
• software and systems troubleshooting.
Work history
Work history
Mac Server administrator
Oct 14, 2020
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Apr 3, 2025
"Working with Serhii was a delight. Responsive, reliable and meticulous, Serhii built our system and solved our problems every time."
Private earnings
Network admin WIZARD - help me setup a fixed IP in my office
May 1, 2021
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Dec 6, 2024
Private earnings
Fix security issues on the server
Feb 23, 2022
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Sep 1, 2024
"Serhii is one of the best DevOps professionals I've had the pleasure of working with. Before choosing Serhii, I spoke with many other DevOps specialists, but he stood out, and…
Private earnings
sys admin, DevOps - WP-multisite, Cpanel
Jul 30, 2024
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Aug 4, 2024
"Did good Job, very professional and fast understanding. very recommenced."
Private earnings
Need back-end server work for static html sites on cloudflare
Oct 19, 2023
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Jul 12, 2024
"Absolutely the best person I have ever worked with. Serhii has stuck with me through thick and thin and has fixed issues at all times of the day. If you…
Private earnings
server meintanance
May 24, 2022
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Jun 23, 2024
Private earnings
Настроить Cloudflare (+WAF)
Nov 27, 2023
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Jun 17, 2024
"I collaborated with Serhii on the web-security project and was extremely satisfied with the results. Serhii demonstrated a high level of professionalism and expertise in his field. The work was…
Freelancer's response
"Many thanks for such a great review! I'm always wanting to provide a reliable services, with sustainable and better future in mind!"
Private earnings
MacOS server issues
May 30, 2024
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Jun 11, 2024
Private earnings
DNS email fix
Apr 10, 2024
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Apr 10, 2024
"Knows what he is doing."
Private earnings
Cloudflare and Security Audit
Aug 24, 2022
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Nov 8, 2023
No feedback given
Private earnings
fix ceph
Dec 5, 2024
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Present
Job in progress
Private earnings
Email cpanel fixing
Aug 12, 2024
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Present
Job in progress
Private earnings
DNS and hosting support
Jun 25, 2024
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Present
Job in progress
Private earnings
Hosting and Cloudflare setup/support, protecting
May 23, 2024
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Present
Job in progress
Private earnings
Wordpress and Linode hosting setup specialist.
May 2, 2024
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Present
Job in progress
Private earnings
Virus Cleaning
Feb 20, 2024
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Present
Job in progress
Private earnings
Security Audit
Feb 7, 2024
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Present
Job in progress
Private earnings
Moodle to DigitalOcean Server Integration
Oct 3, 2023
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Present
Job in progress
Private earnings
Server issues
Jul 10, 2023
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Present
Job in progress
Private earnings
Proxmox Expert for Troubleshooting
Jun 21, 2023
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Present
Job in progress
Private earnings
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Skills
Skills
- Ubuntu
- DNS
- Virtual Private Server
- Linux System Administration
- Proxmox VE
- Cloudflare
- Web Hosting
- Website Security
- Scripting
- Web Server
- Data Recovery
- Disaster Recovery
- Debian