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SERHII ZHARCHYNSKYI
SYSTEM ENGINEER / DEVOPS ENGINEER

IT professional with 8 years of experience in systems
administration, infrastructure development, and process
automation. I specialize in Linux administration, building robust
network solutions, DevOps practices, and developing backend
solutions in Python. I have a deep understanding of modern
containerization technologies, CI/CD, infrastructure as code, and
cloud environments. I am result-oriented, a fast learner, and
constantly improve my technical expertise.
CONTACTS

Phone EDUCATION
[открыть контакты](см. выше в блоке «контактная информация»)
BACHELOR DEGREE
Email Ternopil Ivan Puluj National Technical University | Ternopil, Ukraine
[открыть контакты](см. выше в блоке «контактная информация») Sep 2012 – May 2017

Address
Ukraine, Khmelnytskyi MASTER DEGREE
Khmelnytskyi National University | Khmelnytskyi, Ukraine

SKILLS Sep 2023 – May 2025

• Linux Administration
• Web Servers
• Python WORK EXPERIENCE
• Ansible, Git, Terraform,
SYSTEM ADMINISTRATOR
Docker, Kubernetes
PP “Dita” | Khmelnytskyi, Ukraine
• CI/CD: GitHub Actions
Aug 2015 – Jul 2015
• Flask, Django
Resolved various technical issues for users via phone, email,
• Prometheus, Grafana,
and in person. Ensured optimal performance of computer
Loki systems through hardware and software maintenance and
• OpenStack optimization. Maintained stable and uninterrupted operation
of the IT infrastructure.

LANGUAGES SYSTEM ADMINISTRATOR
LLC “Technoprostir” | Khmelnytskyi, Ukraine
• English: Intermediate
Feb 2016 – Jun 2017
• Ukrainian: Fluently
Provided technical support to users via phone, email, and in
person. Installed and configured operating systems (Windows,
Linux) according to business requirements. Maintained and
connected peripheral equipment, including printers,
HOBBY scanners, and network devices. Administered and supported
video surveillance systems, ensuring stable and reliable
• Reading operation. Performed regular preventive maintenance to
improve the performance and reliability of the IT
• Outdoor activities
infrastructure.
TECHNICAL SUPPORT SPECIALIST (L1)
Hosting Provider | Khmelnytskyi, Ukraine

Feb 2019 – Apr 2019Лют. 2019 – Квіт. 2019

Provided initial technical support to clients via phone, email, and
online chats. Assisted users with web hosting, domain names, email
services, and basic server configurations. Diagnosed connectivity
issues, website access problems, email services, and DNS records.
Participated in installation and configuration of Linux and Windows
servers. Connected and configured peripheral devices. Performed
basic server administration and maintained infrastructure
monitoring systems. Resolved common incidents or escalated
complex cases to higher-level support.

TECHNICAL SUPPORT SPECIALIST (L2)
Hosting Provider | Khmelnytskyi, Ukraine
Apr 2019 – Nov 2020

Delivered advanced technical support, analyzing and resolving
complex incidents related to web servers, databases, domain
names, and network services. Diagnosed Linux and Windows
servers, including log analysis, system checks, and service
recovery. Configured SSL certificates, mail services (SMTP, IMAP,
POP3), DNS records, and network routes. Participated in migrations
of websites and databases between servers. Utilized monitoring
tools to detect and prevent infrastructure failures. Supported
containerized services (Docker) and automated standard tasks
using Bash and Python scripts. Escalated critical incidents to L3
engineers as needed.

SENIOR SYSTEM ADMINISTRATOR
Hosting Provider | Khmelnytskyi, Ukraine
Nov 2020 – Jun 2021

Managed and developed the company’s IT infrastructure. Ensured
uninterrupted operation of Linux and Windows servers, configured
and optimized web servers (Nginx, Apache), mail systems (Postfix,
Dovecot), and databases (MySQL, PostgreSQL). Implemented
security policies, configured backup and disaster recovery systems.
Performed website and service migrations between data centers.
Worked with virtualization (KVM) and containerization (Docker,
Kubernetes) systems. Automated routine tasks using Bash and
Python scripts and managed configurations with Ansible. Organized
infrastructure monitoring (Prometheus, Zabbix) and responded to
incidents according to SLA. Conducted audits and optimized IT
systems to enhance stability and scalability.
HEAD OF DEVELOPMENT DEPARTMENT
Hosting Provider | Khmelnytskyi, Ukraine
Jun 2021 – Nov 2022
Organized and coordinated the work of the development team,
implementing DevOps practices to automate application
deployment and testing. Oversaw the development and
maintenance of server-side solutions using Python with Flask and
Django frameworks. Participated in system architecture design and
migration of services to Kubernetes to ensure scalability and
reliability. Established CI/CD processes using GitHub Actions for
automated testing and code delivery. Contributed to frontend
development with React on select projects. Implemented best
practices in software development, code quality control, and team
collaboration.

СHIEF TECHNICAL OFFICER
Cloud Provider “Fotbo” | Riga, Latvia (Remote)
Nov 2022 – Jul 2025
Lead strategic planning and development of the company’s
technical infrastructure. Responsible for designing and building the
data center network infrastructure, ensuring redundancy, scalability,
and security. Developed architecture and coordinated the
implementation of a billing system to automate resource accounting
and client billing. Oversaw the launch and growth of the OpenStack-
based cloud platform, creating a reliable and scalable IaaS
infrastructure. Organized the deployment of monitoring and backup
systems to improve service reliability. Manage technical teams across
development, networking, and infrastructure, optimizing internal
processes for efficient budget utilization. Actively implement new
technologies to solve business challenges and enhance operational
efficiency.