Olexander

OLEXANDER KRYVDA
Odessa region, UA * [відкрити контакти](див. вище в блоці «контактна інформація») * [відкрити контакти](див. вище в блоці «контактна інформація»)

Linux System Administrator with 12+ years of experience in production, hosting and cloud
environments. Experienced in Linux, virtualization, cloud infrastructure, monitoring, backups, security
and complex OS/network troubleshooting.
CORE TECHNICAL SKILLS
Linux & OS RHEL, Debian; installation, deployment, upgrades and troubleshooting
Virtualization KVM, XEN, OpenVZ, VMware ESX, Proxmox, Solus
Hosting cPanel, Plesk, Virtualmin, Webmin, ISPConfig, ISPmanager; web servers and
hosting environments
Monitoring Nagios, Grafana, InfluxDB, Telegraf; performance, availability and resource
monitoring
Networking & Security Firewalls, network services, connectivity troubleshooting, Squid
Cloud & Operations AWS, GCP, backups/recovery, incident resolution, RCA, technical support,
documentation
PROFESSIONAL EXPERIENCE
Freelance System • Providing freelance Linux system administration and technical support for
Admin | Feb 2026 – production, hosting and cloud environments.
Present • Working across server infrastructure, virtualization, networking, monitoring,
security, troubleshooting and hosting platforms.

IT Admin— Swyft co. | • Google Workspace, Active Directory and Slack administration: users,
Oct 2021 – Feb 2026 groups, roles, permissions and policies.
• Email infrastructure: mail flow, filtering, auto-responders and automation.
• GCP virtual machines and backup/recovery processes.
• OS upgrade planning and execution for servers and workstations.
• Technical documentation, procedures and runbooks.

System Admin / • Linux server administration and virtualization: KVM, XEN, OpenVZ,
Content Manager — VMware ESX, Proxmox and Solus.
Albanza web-studio, • OS deployment, configuration and troubleshooting for production and test
KZ | environments.
Jul 2014 – Oct 2021 • Network security, firewalls, network services and connectivity
troubleshooting.
• Deployment and administration of Squid, Nagios, Grafana, InfluxDB and
Telegraf.
• Web/hosting infrastructure and control panels.
• Technical support, incident resolution, RCA and user communication.

System Admin — • Administration of Linux, virtualization, networking, monitoring, proxy and
Proxy-seller.com, UA | hosting infrastructure; technical support and incident resolution.
May 2016 – Jun 2019
EDUCATION & LANGUAGES
Languages Ukrainian (Native), Russian (Fluent), English (B1), Polish (A2), Lithuanian
(A1)
Education B.Eng., Electrical Engineering — Odessa National Polytechnic University,
Odessa, Ukraine | 2001–2006