Hire the Best System Administrators
in Ukraine

Clients rate our System Administrators
Rating is 4.8 out of 5.
4.8/5
Based on 260 client reviews
Oleksandr D.

Nikopol, Ukraine

$60/hr
4.9
355 jobs

⭐️ Top Rated Plus - Top 3% Expert on Upwork 🕒 9000+ Working Hours ✅ 20+ Years of Expertise ✅ 100% Job Success ✅ 300+ Successful Projects Finished ✅ 5 Star Rating Hello, I'm Oleksandr. As a seasoned Linux System Administrator and DevOps Engineer with over 20 years of experience I specialize in delivering robust IT solutions that enhance operational efficiency and security. My expertise spans across various domains, including: ▪ DevOps & Automation: Successfully implemented automated provisioning using Ansible, streamlining deployment processes and reducing manual intervention. ▪ Linux & FreeBSD Maintenance: Managed and optimized server environments on CentOS, Debian, Ubuntu, RHEL, and FreeBSD, ensuring high availability and performance. ▪ Cloud Hosting: Deployed and maintained scalable cloud solutions on AWS, Azure, and DigitalOcean, enhancing infrastructure reliability and scalability. ▪ Virtualization: Utilized Docker, VirtualBox, and OpenVZ to create flexible and efficient virtual environments, supporting diverse application needs. ▪ Web & Database Servers: Configured and maintained Apache, Nginx, MySQL, PostgreSQL, and MongoDB servers, ensuring secure and efficient data handling. ▪ Networking & Security: Implemented secure networking solutions, including VPNs and firewalls, to protect sensitive data and maintain network integrity. I am committed to continuous improvement and staying abreast of the latest industry trends. My approach is rooted in ITIL best practices, ensuring incident management and business continuity planning are at the forefront of my work. Let's collaborate to drive your IT projects to success with innovative solutions and expert guidance.

  • System Administration
  • Linux
  • Network Administration
  • Ubuntu
  • DNS
  • Web Hosting
  • SSL
  • WordPress
  • Docker
  • Docker Compose
  • Git
  • CI/CD
  • Google Cloud Platform
  • Terraform
  • Continuous Deployment
  • Continuous Delivery
  • Continuous Integration
  • DevOps
  • DevOps Engineering
  • Amazon Web Services
Oleg S.

Vinnitsa, Ukraine

$30/hr
5.0
190 jobs

More than 15+ year previous experience in Linux/Sysadmin/Hosting Design of High Availability/High-Performance services and architectures Ability to work flexible hours My primary experience (daily tasks) Server Setup/Migration/Transfer, Server Configuration, Server Optimization, Server Troubleshooting, Domain Registration, Domain Transfer, Domain Nameservers, Domain DNS Website Transfer, Website Migration SSL Install, SSL Renew, SSL Certificate Signing Request (CSR), SSL Let's Encrypt & Certbot Mail Transfer/Migration, Mail Delivery (SPF/DKIM/DMARC) Solid working knowledge of RPM/DEB based Linux Distributions: RHEL, CentOS, AlmaLinux, Rocky Linux, Oracle Linux, Fedora, Debian, Ubuntu, ArchLinux Experience with AWS EC2, AWS Lightsail, AWS RDS, AWS ROUTE53, AWS S3 Experience with RackSpace, DigitalOcean, Singlehop, Hetzner Dedicated, Hetzner Cloud, OVH, Godaddy Experience with Shared Hosting : JustHost, BlueHost, Hostgator, Godaddy, a2hosting, fatcow Experience with Control Panels: cPanel & WHM, Plesk, DirectAdmin, Virtualmin/Webmin, CWP (Control Web Panel) Software: Apache, Nginx, PHP-FPM, BIND, DHCP, Dovecot, Exim, Postfix, MySQL, iptables, ufw, CSF

  • System Administration
  • CentOS
  • Linux
  • Linux System Administration
  • MySQL
  • Network Security
  • Ubuntu
  • cPanel
  • Amazon EC2
  • Domain Migration
  • SSH
  • Cloudflare
  • LAMP Administration
  • SSL
Dmytro U.

Kamenets-Podolski, Ukraine

$25/hr
5.0
3 jobs

- Knowledge of principles of construction and operation of computer networks, application protocols. - Professional knowledge of operating systems Linux, FreeBSD, Windows, customization of servers for various tasks. - Knowledge and understanding of virtualization environments. - Perfectly mastered technologies of remote configuration and administration of objects, networks, servers, workstations, combining geographically dispersed objects in local networks. - Knowledge of computer and telecommunication equipment.

  • System Administration
  • Linux System Administration
  • Windows Server
  • Network Administration
  • VPN
  • Network Engineering
  • Computer Network
  • Computing & Networking
  • VMware ESX Server
  • Virtual LAN
  • Virtual Machine
  • MikroTik RouterOS
  • Multiprotocol BGP
  • Proxmox VE
  • WiFi
Ivan Z.

Lviv, Ukraine

$7/hr
5.0
6 jobs

Linux System Administrator with hands-on experience at Namecheap, providing technical assistance for web hosting, domains, DNS, email configuration, website troubleshooting, and server-related issues. I specialize in helping clients solve hosting and website problems quickly and efficiently. My background includes working with cPanel, WordPress, SSL certificates, FTP, DNS management, email delivery issues, malware removal, website security, VPS and dedicated servers administration and general website support. I’m comfortable communicating with both technical and non-technical clients and always focus on clear explanations and fast resolutions. I am reliable, detail-oriented, and committed to delivering quality support and excellent customer service. Whether you need website troubleshooting, hosting migration assistance, DNS setup, or technical support, I’m ready to help.

  • Technical Support
  • Server Administration
  • WordPress
  • WordPress Development
  • DNS
  • cPanel
  • Email Support
  • Domain Migration
  • Website Migration
  • Hosting Setup
  • Cloudflare
  • Phishing Website
  • Malicious Website
Vitaliy L.

Kyiv, Ukraine

$15/hr
5.0
7 jobs

System administrator with more than 10 years of experience. Work with all Windows server platforms and user OS, mail, O365, Exchange online, AD, Azure AD, GPO and so on.

  • System Administration
  • Windows Server
  • Microsoft Windows
  • Office 365
  • Microsoft Azure Administration
  • Microsoft Hyper-V Server
  • Microsoft Exchange Online
  • Veeam
  • DNS
  • Email Communication
  • Google Cloud Platform
  • Google Workspace
  • IT Support
  • Remote Connection Support
  • Troubleshooting
  • Tech & IT
  • Technical Support
  • Email Support
  • Email Deliverability
Aleksandr K.

Zaporozhye, Ukraine

$40/hr
5.0
63 jobs

Mostly interested in reverse-engineering tasks of Windows applications. Have experience in programming: Assembler language, Delphi, C++, C#. Data extraction, parsing proprietary file formats. Dll injection, modify memory of the application.

  • Microsoft Windows
  • C#
  • Assembler
  • X86 Assembly Language
  • C++
  • Reverse Engineering
  • Delphi

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