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SERHII ZHARCHYNSKYI
INFRASTRUCTURE ENGINEER / SYSTEM ENGINEER
[open contact info](look above in the "contact info" section)
SERA.UA09@G MAIL.COM
UKRAINE, KHMELNYTSKYI

S UMMARY

Infrastructure Engineer with 7+ years of experience in Linux administration, networking, virtualization,
and cloud infrastructure. Experienced in operating large-scale distributed environments, including 400+
bare metal servers and 20,000+ virtual machines across four geographic regions. Hands-on experience
with OpenStack, KVM, VMware, monitoring, backup systems, and automation using Bash, Python, and
Ansible. Working knowledge of Docker, CI/CD, and Kubernetes for application deployment. Focused on
building reliable infrastructure, maintaining production services, and solving complex technical issues.

S KILLS

Infrastructure & Cloud: OpenStack, Bare Metal Provisioning, IaaS, Large-scale Distributed Systems
Virtualization & OS: KVM, Linux (Debian/Ubuntu/RHEL)
Networking: Network Design, TCP/IP, DNS, Routing, Switching, Load Balancing
Automation & Scripting: Ansible, Bash, Python , Terraform
Containerization & CI/CD: Docker, Kubernetes (App Deployment), GitHub Actions
Databases & Web Servers: Nginx, MySQL, PostgreSQL
Monitoring & Reliability: Prometheus, Zabbix, Alerting, Incident Response

LAN GUAGES
English: Intermediate
Ukrainian: Native

EXPERIEN CE

2022 – 2026 Infrastructure Engineer
Cloud provider "Fotbo" | Riga, Latvia (Remote)
Coordinate the launch and daily operation of a distributed OpenStack-
based IaaS platform. Scale and maintain an infrastructure of 400+ bare
metal nodes supporting over 20,000 virtual machines across 4
geographic regions. Design data center network architecture with a strict
focus on high availability, security, and redundancy. Participate in rolling
out automated billing and resource accounting systems. Collaborate with
networking and development teams to resolve technical issues and
ensure platform stability under high capacity.

2021 – 2022 System Engineer / DevOps Engineer
Hosting Provider | Khmelnytskyi, Ukraine
Worked in a mixed engineering role combining infrastructure operations,
automation, and development support. Set up CI/CD workflows using
GitHub Actions for automated testing and code delivery. Participated in
migrating services to Kubernetes to improve deployment consistency and
scalability. Contributed to Python backend development (Flask/Django)
and helped bridge the gap between development and infrastructure
practices.
2020 – 2021 Senior System Administrator
Hosting Provider | Khmelnytskyi, Ukraine
Maintained Linux and Windows server infrastructure for production web,
mail, and database services. Administered Nginx, Apache, Postfix,
MySQL, and PostgreSQL. Automated routine operational tasks using
Bash, Python, and Ansible. Implemented backup and disaster recovery
procedures to improve system resilience. Managed infrastructure
monitoring with Prometheus and Zabbix, and responded to incidents
according to operational priorities.
2019 – 2020 Technical Support Engineer / System Administrator
Hosting Provider | Khmelnytskyi, Ukraine
Resolved advanced infrastructure and hosting incidents involving Linux
servers, web services, databases, DNS, and network connectivity.
Diagnosed production issues using logs, system checks, and service -level
troubleshooting. Configured SSL certificates, DNS records, and
SMTP/IMAP/POP3 services. Used monitoring tools and automation
scripts in Bash and Python to support day-to-day operations and
escalated critical cases when necessary.
2019 – 2020 Technical Support Specialist
Hosting Provider | Khmelnytskyi, Ukraine
Provided first-line support for hosting, domain, email, and basic server
issues. Handled incidents related to website access, mail delivery, DNS
configuration, and account troubleshooting. Assisted with operating
system setup and basic infrastructure monitoring

EDUCATION

Sep 2023 – May 2025 MASTER DEGREE
Khmelnytskyi National University | Khmelnytskyi, Ukraine

Sep 2012 – May 2017 BACHELOR DEGREE
Ternopil Ivan Puluj National Technical University | Ternopil, Ukraine