Kostiantyn

CONTACTS
DEREVIANCHENKO
[open contact info](look above in the "contact info" section)
[open contact info](look above in the "contact info" section) KOSTIANTYN
Romania
[open contact info](look above in the "contact info" section)
SYSTEM ADMINISTRATOR

SKILLS SUMMARY
OS \ Programming \ network Experienced Infrastructure Engineer and Senior System Administrator
skills with over 15 years of expertise in driving infrastructure velocity, reliability
and security. Deeply specialized in both Linux and Windows environments
Linux servers Windows servers
high-load production services, and hybrid cloud solutions.
Bash Routing Mikrotik Unify ILO Proven track record of modernizing traditional IT environments into scalable,
iDRAC DNS VPN Firewall NET automated DevOps-driven infrastructures.

Vm \ DB \ Clouds \ Services Technical Expertise
Proxmox XEN RabbitMQ Nginx
Technical Expertise Cloud & Infrastructure (IaC): AWS, GCP, DigitalOcean, Hetzner,
Tomcat Apache Cloudflare GCP Terraform, Ansible, XEN Hypervisor.
DigitalOcean AWS Vultr Hetzner CI/CD & Containers: Docker, Jenkins, Git, Automation & Alerts Scripting.
Observability & Monitoring: Prometheus, Grafana, Zabbix, Elastic Stack (ELK).
Let's Encrypt PostgreSQL GWS Web & Database Administration: Nginx, Tomcat, Apache, PostgreSQL.
Ansible Terraform Vagrant Networking & Security: MikroTik (VPN tunnels, port protection, firewall, ISP failover).
Hardware & Remote Management: Bare-metal environments (HP iLO, DELL iDRAC).
Reverse proxy Wireguard
IT Operations & SaaS: Backup & Disaster Recovery (DR), Google Workspace
administration and Helpdesk management.
EXPERIENCE
EWA Solutions Location
EDUCATION
DevOps Engineer 2024 - 2026 Cerificate
2023 | Implement DevOps
Production Fintek insurance company
in Google Cloud
• Maintenance high load servers and services
GCP
• Support and fix issue nginx, tomcat, elastic,
wireguard, Jenkins, PostgreSQL, DO, AWS services. School or University
• Troubleshooting, scaling and deploy to K8S
2022 | Automating Infrastructure on
• Writing bash-scripts, DNS records, update ssl cert.
Google Cloud with Terraform
• Monitoring Prometheus+Grafana, Haproxy.
GCP

COMODO (NuRD) Location School or University
DevOps Engineer 2021 - 2024 2022 | Jenkins for DevOps engineers
Production company Udemy
• Install, setup, and support production highload services.
• Write Bash scripts for checking the status of web School or University
services and deploying code. 2021 | AWS Cloud Technical Essentials
• Migrate Linux servers and services to Cloud VMs and Coursera
start services in Docker.
• Monitor Zabbix, Grafana, and RabbitMQ. School or University
• Handle Jira tasks for maintenance. 2019 -2021 | CCNA \ Linux \ IoT
• Create technical runbooks. CISCO netacad

MARCONI Location School or University
System Administrator 2015 2021 2019 | MTCNA Mikrotik Training Center
Manufacturing company
School or University
• Organization of secure remote work for users via vpn.
• Providing technical support for users, diagnostics,
2004 | Servicing HP
and elimination of hardware failures at workplaces. mobile computing product
• Making L2TP VPN tunnels.
School or University
• Ensuring the operation of MikroTik network equipment.
• Implementing seamless Unify Wi-Fi roaming. 2006 - 2011 | Odessa National Politechnic
• Admnistrating Bare-metal environments HP (iLO) Univercity Computer engineering. Masters of Degree