Oleksii

OLEKSII NESMIIAN
DevOps Engineer
SUMMARY
Senior DevOps Engineer with over 5 years of commercial
DevOps experience and 5 years of previous experience as a
System Administrator. Worked on product, outsourcing, and
outstaff projects across various industries. Most of my
commercial experience has been as a solo DevOps engineer,
taking full ownership of infrastructure, while also working as part
of DevOps teams, collaborating closely with developers,
participating in architecture discussions, project planning, and
technical decision-making. Experienced in building projects
from scratch and taking end-to-end responsibility for both cloud
and on-premises infrastructure, CI/CD pipelines, security,
monitoring, automation, performance optimization, and
operational reliability. Hands-on experience with high-load
production systems, blockchain infrastructure, and AI solutions.

GENERAL SKILLS EDUCATION
- AWS, GCP, Cloudflare, Digital National Aviation University (Ukraine, Kyiv)
Ocean, Hetzner, OVH etc Bachelor's degree in Computer Science (2014-2017)
- Kubernetes, Docker, LXC
- Terraform, Ansible, Puppet
- ELK, Prometheus, Grafana, Loki LANGUAGES
- GitHub Actions, GitLab CI,
Jenkins Ukrainian: Native
- Artifactory, SonarQube English: B1+ (Communication with international teams/clients)
- Proxmox, VMWare, VirtualBox
- Blockchain Nodes/Validators
- Linux, Windows, MacOS
EXPERIENCE
- Bash, Groovy DevOps Engineer
- PostgreSQL, MySQL, MongoDB, Links Group, Jan 2026 - Jul 2026
Redis ● Maintained and supported cloud infrastructure hosted on
- Nginx, Apache Hetzner and Giga Cloud, ensuring high availability and
- Asterisk, Free PBX, Zadarma, operational reliability
Binotel ● Designed, implemented, and maintained CI/CD
- MikroTik, Dell SonicWall, pipelines using GitHub Actions and GitLab CI
Cisco,UniFi, HP, TP-Link ● Administered Linux servers and automated
- 24/7 Production Support infrastructure operations using Bash scripting
● Managed containerized environments using Docker and
CONTACTS LXC
Tel: [открыть контакты](см. выше в блоке «контактная информация») ● Implemented infrastructure monitoring and centralized
Mail: [открыть контакты](см. выше в блоке «контактная информация») logging using Prometheus, Grafana, and Loki
Telegram: @alekseynew
 ● Configured and maintained secure VPN connectivity
and access management for distributed teams and
remote offices
● Connected subsidiary offices and remote locations to
production infrastructure, ensuring secure and reliable
network access
● Collaborated with development teams to improve
deployment processes, infrastructure security, and
operational efficiency

Tech Stack: Hetzner, Giga Cloud, CloudFlare, Linux, Bash,
Prometheus, Grafana, Loki, Docker, LXC, CI/CD, GitHub
Actions, Gitlab CI, VPN

DevOps Engineer
Telecart-Prylad, Apr 2023 - now
● Administered Linux servers and maintained production
infrastructure
● Developed and maintained CI/CD pipelines using
Jenkins, Bash, and Groovy
● Automated infrastructure operations and deployment
workflows
● Performed monitoring, troubleshooting, and
performance optimization of production systems
● Supported PostgreSQL databases, including
maintenance and backup procedures
● Worked closely with development teams to improve
release processes and operational efficiency

Tech Stack: Linux, Jenkins, Bash, Groovy, PostgreSQL, Gitea

DevOps Engineer
Geeksters Agency, Feb 2022 - Jan 2025
● Built the DevOps ecosystem for greenfield projects from
scratch, including cloud infrastructure, Infrastructure as
Code, CI/CD pipelines, automation, and operational
tooling
● Designed and implemented cloud infrastructure using
AWS and Terraform
● Built and maintained Infrastructure as Code to automate
infrastructure provisioning and management
● Designed, implemented, and optimized CI/CD pipelines
using GitHub Actions
● Deployed, maintained, and upgraded blockchain nodes
and validator infrastructure
● Managed containerized applications using Docker and
Kubernetes (test environment)
● Developed Bash scripts to automate infrastructure
operations and routine maintenance tasks
● Implemented automated backup solutions and
infrastructure health-check mechanisms to improve
system reliability
 ● Collaborated closely with developers to streamline
deployment processes, improve infrastructure reliability,
and automate operational workflows

Tech Stack: AWS, Cloudflare, Terraform, Blockchain
Nodes/Validators, CI/CD, Kubernetes, Docker, Bash, GitHub,
GitHub actions

DevOps Engineer
EPAM, Dec 2020 - Feb 2022
● Designed and maintained cloud infrastructure on AWS
and GCP using Infrastructure as Code (Terraform,
Ansible, Puppet)
● Built, automated, and optimized CI/CD pipelines using
Jenkins, Bash, and Groovy
● Deployed and managed containerized applications with
Docker and Kubernetes (test environment)
● Integrated SonarQube into CI/CD pipelines to enforce
automated code quality checks
● Managed source code repositories and code review
workflows using Gerrit and GitHub
● Collaborated closely with development teams to improve
deployment processes, automation, and infrastructure
reliability
● Configured secure infrastructure access using VPN and
SSH

Tech Stack: AWS, GCP, Terraform, Ansible, Puppet,
Kubernetes, Docker, Bash, Groovy, Sonarqube, Gerrit, GitHub,
Jira, Confluence, VPN, SSH

DevOps Engineer
Vareger, May 2019 - Aug 2020
● Managed cloud and on-premises infrastructure across
AWS, DigitalOcean, OVH, and dedicated servers
● Automated application deployment and operational
tasks using Jenkins and Bash scripting
● Built and maintained CI/CD pipelines to streamline
software delivery
● Administered Linux servers, Docker containers, and
LAMP/LAPP environments
● Configured networking services, including VPN, DNS,
SSL/TLS, SSH, MikroTik, and UniFi
● Maintained and monitored production infrastructure,
ensuring high availability and system reliability
● Supported VoIP infrastructure based on Asterisk and
FreePBX
● Worked closely with developers to troubleshoot
infrastructure issues and improve deployment processes

Tech Stack: AWS, Digital Ocean, OVH, Docker, MikroTik,
UniFi, LAMP/LAPP, Basic bash-scripting, Asterisk, Free PBX,
Jira, Confluence, BitBucket, DockerHub, GSuite, Jenkins,
Artifactory, VPN, DNS, SSL, SSH

System Administrator
Oro Inc., Mar 2018 - May 2019
● Routers and periphery administration (Dell SonicWall,
MikroTik, Cisco, TP-Link, D-Link)
● WLAN/VLAN administration (Unifi)
● Linux, Windows, Mac administration (PCs & Servers)
● Virtualization knowledge (LXC, Vagrant, VirtualBox)
● Elementary Bash-scripting knowledge
● LNMP/LNPP administration
● Work with ACS, SCS
● Work with the integration of internal services
● External and internal office security (firewall, ssh, google
authentication)
● GSuite administration
● Jira and Confluence administration
● GitHub administration
● Jenkins administration
● Slack administration
● Remote support
● Help Desk

System Administrator
Lead Ocean, May 2017 - Jun 2018
● Remote technical support and office administration
● Management and payment of domains and servers
● Administration of corporate mail
● Installation and maintenance of server hardware
● Management and configuration of ACS
● Monitoring the health of services and equipment
● Testing and repairing computers, replacing faulty parts,
assembling/disassembling PCs, setting up peripherals
● Help desk online 24/7

System Administrator
ReadyTell, Mar 2017 - Jan 2018
● Creation of a small office for full-fledged work (setting up
equipment, creating and setting up workplaces, setting
up IP telephony and SIP numbers, laying a cable)
● PBX administration (binotel, oktell, zadarma)
● Time tracking control in Jira
● Administration and work with Bitrix24
● ACS management and configuration
● Administration of corporate mail (gmail, yandex)
● Working with virtual machines
● Installation and dismantling of server and network
equipment
● Work with server equipment (cisco, mikrotik, hp, unifi)
● Work with security and encryption of workstations
● Keeping a log of the list of vehicles
 ● Control and timely payment of remote servers, domains
and additional services
● Remote technical support and maintenance of
subsidiary offices of the holding
● Supervision and purchase of new office equipment
● Technical support for all workplaces and office periphery
● Network setup and configuration
● Setting up and maintaining office surveillance cameras
● Restoration of system performance in case of failures
and failure of network equipment

System Administrator
Expert Marketing Group, May 2016 - Jan 2017
● Management of CRM systems Forex, Binary Options
(spotoption, airsoft, microsoft crm)
● Work with payment systems (payboutique, fibonatix,
snow, orange pay etc)
● Reporting customer base
● Preparation of new jobs, creation and control of users in
CRM-systems
● Technical support for all workplaces and peripherals of
the office
● Setup and configuration of the local network
● Setting up and maintenance of office surveillance
cameras
● Recovery of the system in case of failures and failure of
network equipment

System Administrator
Euro Taxi, Sep 2014 - Jun 2016
● Installation, configuration and administration of order
management software in a taxi service
● Registration of new drivers and setting up their personal
account in the system
● Technical support for all workplaces and peripherals of
the office
● Setup and configuration of the local network
● Recovery of the system in case of failures and failure of
network equipment
● Management of SMS mailing and company advertising
● Fulfillment of the duties of a recruitment manager, in
particular, the search and employment of new
employees
● Setting up and maintenance of office surveillance
cameras