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Work experience

DevOps engineer

from 02.2023 to 03.2024 (1 year 1 month)
Fin++, Дистанційно (IT)

• Set up the Kubernetes cluster and moved bare metal hosted services to it, providing a
greater reliability and observability thereto
• Set up Rancher RKE with autoscaling to provide extra capacity to the aforementioned
cluster in a time of need
• Revamped the organization’s build system on Jenkins, decreasing build times for
certain projects up to 70%
• Restructured the build process of a project’s frontend application using docker, which
allowed for consistent builds and a more versatile testing approach
• Administrated network infrastructure based on Mikrotik devices
• Kept up to date the Infrastructure-as-Code repository using Ansible

Site Reliability Engineer

from 03.2020 to 12.2022 (2 years 9 months)
The Kerbel FZ LLC, Дистанційно (IT)

Deployed a Kubernetes cluster with a CEPH storage backend and migrated the website
hosting infrastructure to it, increasing fault tolerance and uptime to 99.95%
• Implemented an automated testing and vulnerability pre-check infrastructure for user
websites, rolling back to the previous CEPH snapshot in case of exploitation or failure,
which improved the stability of websites in the Arab region and eliminated instances of
compromised websites.
• Migrated multiple company servers, previously scattered across various low
performance hardware, to a large Proxmox-based server platform, increasing the
stability and performance of individual components by 85% and eliminating the need for
maintenance and support of diverse server hardware.
• Established an automated product build process, implementing a testing-stage
production workflow using Jenkins and GitLab CI.
• Containerized final products that did not require strict hardware binding into Docker
containers, standardizing infrastructure deployment across various Linux servers.
• Managed a team of two employees, overseeing task management and priority
distribution.
• Implemented a secure access control system, enabling access management with just
a few clicks or commands.
• Automated the deployment of products requiring host systems using Ansible.
• Secured infrastructure, including RKH and SELinux configuration.
• Monitored vulnerabilities and applied necessary fixes.
• Identified and closed a vulnerability in a Mikrotik-based network that allowed
unauthorized access and switching to developer mode.
• Selected hardware components for high-performance server builds
• Set up infrastructure monitoring using Prometheus and Grafana, integrating alert
notifications into Slack and Telegram.

Системный администратор linux, DevOps

from 02.2014 to 03.2020 (6 years 1 month)
OOO Kodeks, Дніпро (IT)

• Linux system administration.
• Automated product deployment using Ansible.
• Containerized core products using Docker.
• Built and administered industrial-grade servers in an in-house data center, implementing
virtualization with ESXi/Proxmox based on project requirements.
• Monitored and mitigated newly discovered vulnerabilities.
• Managed network infrastructure using Mikrotik.

Education

УГХТУ

Компьютерні науки та інженерія
Higher, from 2016 to 2021 (5 years)

Knowledge and skills

• Сумлінність
• DHCP
• IP (Internet Protocol)
• Налаштування Firewall
• MikroTik
• VMware
• TCP/IP
• Zabbix
• Hyper-V
• OpenVPN
• Налаштування VPN
• VLAN
• HTML
• Налаштування DNS

Language proficiencies

• English — above average
• Ukrainian — fluent
• Russian — fluent