Kostiantyn

DEREVIANCHENKO KOSTIANTYN
DevOps engineer
E [open contact info](look above in the "contact info" section) [open contact info](look above in the "contact info" section) [open contact info](look above in the "contact info" section)
Romania

SUMMARY SKILLS
Velocity, reliability, troubleshooting highload Linux servers, and micro-services of Company. CI\CD Jenkins Pipelines GIT Docker Vagrant

Make CICD / Pipelines for Git, Jenkins, Docker, K8S, Terraform, Ansible. Kubernetes Terraform Ansible Let's encrypt
Use clouds and cloud services: AWS, DigitalOcean, Vultr, Servermania, Hetzner, GCP, S3,
- EC2, Droplets, IAM, Security Groups, Backups, K8S, Balancing and auto-scaling servers. PostgreSQL Proxmox XEN Nginx Apache

Integrate VM\Tools\lang: VMWARE, VBOX, Vagrant, XEN, Proxmox, Letsencrypt, Wireguard VPN, Tomcat Haproxy Reverse proxy DNS Hetzner
- bash-scripting, ELK, Yaml, Json.
AWS Vultr Cloudflare DigitalOcean S3 Elastic
Troubleshooting Services\ DNS \ DB: Nginx reverse-proxy, Haproxy, Apache, Tomcat, LAMP, Cloudflare, SIP, FreePBX
- Letsencrypt, Redis, PostgeSQL. Bash Wireguard Zabbix Prometheus Grafana

Monitoring: Zabbix \ Prometheus + Grafana, Haproxy, RabbitMQ.
EXPERIENCE
DevOps engineer
EWA Solutions
2024 - 2026
Production Fintek insurance company
• Maintenance high load servers and services.
• Support and fix issue nginx, tomcat, elastic,
wireguard, Jenkins, PostgreSQL, DO, AWS services.
• Troubleshooting, scaling and deploy to K8S
• Writing bash-scripts, DNS records, update ssl.
• Monitoring Prometheus+Grafana, Haproxy.

DevOps engineer
COMODO NuRD
2021 - 2024
Production company
• Install, setup, and support production
servers and services.
• Writing bash-scripts for checking the
states web services and deploying code.
• Migration linux servers, and services to
• Cloud VMs and starting services in
docker.
• Monitoring Zabbix+Grafana and
RabbitMQ.
• Jira tasks of maintenance.
• Making the technical runbooks.

System Administrator
MARCONI
2015 2021
Manufacturing company
• Organization of secure remote work for users.
• Providing technical support for users, diagnostics, and elimination of hardware
failures at workplaces.
• Making L2TP VPN tunnels.
• Ensuring the operation of MikroTik network equipment.
• Implementing seamless Wi-Fi roaming.

Protocols \ Routers \ Wireless
System Administrator
TCP\IP UDP Osi Model Layers
ViCTORIA
2013 2015
Mikrotik Dual\Triple WAN switching
Pharmacy company
• Service and maintenance of network equipment such as MikroTik, Draytek, and
VPN: OVPN / l2TP / IPsec / SSTP
Ubiquiti.
• Connection and setup of commercial equipment for enterprises, including cash
registers and barcode scanners. Brute-force protection scan port protection
• Maintenance, diagnostics, and auditing of local and wireless networks across
70 remote branches.
• Organization of monitoring remote hosts with the ability to instantly connect via Static routing hotspot sip over vpn tunnels
VPN tunnels.
• Servicing video surveillance systems such as Dahua and Hikvision. Seamless nets traffic distribution