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Evgeniy Zvyagintsev
Role: Infrastructure & DevOps Engineer / Senior System Administrator
Location: Dnipro, Ukraine
Email: [открыть контакты](см. выше в блоке «контактная информация») | Phone: [открыть контакты](см. выше в блоке «контактная информация»)

Professional Summary
Result-oriented Infrastructure Engineer and System Administrator with over 8 years of
experience in planning, deploying, and supporting enterprise-level infrastructure. Expertise
spans hybrid cloud environments, high-availability mail server clusters, advanced networking
(MikroTik/Cisco), and automation frameworks. Proven track record in orchestrating seamless
infrastructure migrations, establishing robust monitoring solutions, and implementing modern
CI/CD workflows to support development teams.

Technical Skills
●​ Operating Systems & Core Services: Linux (Ubuntu Server, Debian, RHEL), Windows
Server (2003–2019), Active Directory, GPO, DNS, DFS, RDS.
●​ DevOps & Automation: CI/CD (GitLab CI/CD), Infrastructure as Code (Ansible),
Containers (Docker), Vagrant, Git, Bash/PowerShell scripting.
●​ Mail & Collaboration Systems: Zimbra Collaboration Suite (Cluster architecture),
Carbonio CE (Systems-managed services integration).
●​ Networking & Security: Switching & Routing (OSPF, BGP), MikroTik, Cisco, Firewalls
(Iptables/nftables), VPN (L2tp, OpenVPN, Wireguard).
●​ Telephony & VoIP: Asterisk PBX (SIP/PJSIP customization), Vicidial.
●​ Virtualization & Backups: Hyper-V (Failover Clusters), KVM, Proxmox VE, Bareos
Backup Server (v25.0.4).
●​ Monitoring & Log Analysis: Zabbix, Nagios .

Work Experience
WOW-corporation (Dnipro, Ukraine)
System Administrator / DevOps | 2017-10 — Present
●​ Network Design & Security: Built and optimized the corporate network infrastructure
leveraging MikroTik equipment; implemented OSPF routing, L2/L3 switching, and
advanced firewall policies. Established secure site-to-site and remote-access networks
via OpenVPN and ZeroTier.
●​ Telephony Integration: Administered Asterisk servers and implemented Vicidial platform
solutions; configured, maintained, and customized SIP/PJSIP trunking and extensions to
support remote workforces and call-center operations.
●​ Mail Infrastructure: Designed, implemented, and maintained high-availability Zimbra
server clusters. Successfully orchestrated a seamless migration from legacy Zimbra
setups to modern Carbonio CE, transitioning service management to native systemd
 architectures.
●​ Automation & CI/CD: Integrated GitLab CI/CD pipelines and Docker containers to
accelerate software deployment and support internal development teams. Developed
Ansible playbooks for automated SSL certificate management via Cloudflare API and
acme.sh.
●​ Cloud & Infrastructure Migration: Led strategic planning and execution for migrating
legacy on-premise infrastructure components into scalable cloud environments.
●​ Windows Infrastructure: Designed and deployed Active Directory Infrastructure and
high-density Terminal Server Session collections on Windows Server 2016/2019.
Implemented Linux-based (Thinstation/PonyX) network boot environments for thin clients.
●​ Monitoring & Backups: Organized comprehensive, pro-active infrastructure monitoring
based on the Zabbix platform. Deployed and configured a centralized Bareos Backup
Server (v25.0.4) on Ubuntu 24.04 to secure critical data.

LLC "Meat Processing Plant Yubileiny"
System Administrator | 2016-03 — 2017-10
●​ Virtualization & Clusters: Created, configured, and administered a high-availability
Hyper-V Cluster running Windows Server 2012 R2. Successfully upgraded and migrated
the Hyper-V Cluster environment to Windows Server 2016.
●​ Directory Services Migration: Executed a seamless Active Directory infrastructure
migration from Windows Server 2003 to Windows Server 2012 R2.
●​ Storage Management: Configured specialized management software for SAN
environments, specifically HP EVA-storage arrays on Windows Server platforms.
●​ Monitoring Infrastructure: Enhanced corporate monitoring by implementing advanced
graphical metrics (pnp4nagios) for the Nagios monitoring system.

Online store tvoe.in.ua
System Administrator | 2015-08 — 2016-03
●​ Infrastructure Design: Built a stable server infrastructure from scratch utilizing Hyper-V
and Windows Server 2012 R2 (incorporating Active Directory and Remote Desktop
Services).
●​ Thin Client Deployment: Designed and rolled out a cost-effective ThinStation-based
network boot solution for workplace terminals.
●​ Wireless Networking: Planned and deployed a seamless enterprise WiFi network
covering warehouse and office facilities.

Trading House AMSTOR
IT Specialist | 2014-01 — 2015-08
●​ Disaster Recovery: Successfully performed critical disaster recovery procedures for
Windows Server 2003 Active Directory services.
●​ Data Collection Logistics: Configured and managed a reliable wireless network
architecture optimized for Motorola data collection terminals running Sprut inventory
software.
Education & Certifications
●​ Course: DevOps — Hillel Computer School, Dnipro, Ukraine (2019)
●​ Specialty: Network and System Administration — Computer Academy STEP, Dnipro,
Ukraine (2012–2015)
●​ Professional Knowledge: MikroTik Certified Network Associate (MTCNA), MikroTik
Security Engineer (MTCSE).

Languages
●​ Russian: Native
●​ Ukrainian: Native
●​ English: Technical proficiency