Dmytro Dudnyk

L3 Technical Support | Team Lead

Kyiv, Kyiv City, Ukraine

About

I have a diverse background in system administration, QA server engineering, and web development, which has provided me with a robust skill set applicable to a DevOps role. Over the past three years, I have gained extensive experience in managing and automating IT infrastructures, developing testing frameworks, and enhancing web platforms. In my current position as a QA Server Engineer at Johnson Controls, I have been responsible for implementing automated testing scripts for localization projects. This involved developing and executing comprehensive test plans, analyzing results, and collaborating closely with developers to identify and resolve issues. My role also includes creating and maintaining detailed server documentation, which has been critical for ensuring smooth operations and facilitating future updates. Prior to this, I worked as a System Administrator in a private project based in Tbilisi, Georgia. Here, I managed Linux servers, monitored IT systems using Zabbix, and administered virtual servers within the Proxmox environment. I configured various network and security tools, such as I2P, OpenVPN, Wireguard, and Tor, and developed Python scripts and BASH scripts to automate routine tasks. My efforts significantly improved system reliability and operational efficiency. Additionally, I have experience as a Web Developer, where I designed and developed websites using HTML, CSS, JavaScript, and PHP. I was also involved in configuring WordPress sites, installing and setting up Keitaro, and managing Facebook advertising campaigns. This role required a keen eye for detail and the ability to adapt quickly to new technologies and client needs. Technologies Used: Throughout my career, I have worked with a wide array of technologies, including Jenkins, Vagrant, Python, Jira, GitLab, Perforce, Redis, MySQL, Linux (CentOS, Debian), Proxmox, AWS (EC2, IAM, VPC, S3, EBS, ELB, CloudWatch), Docker, Terraform, Grafana, Prometheus, Postman, OpenVPN, Wireguard, Stunnel, Matrix, MongoDB, Postfix, HTML, CSS, PHP, WordPress, and Keitaro.

Experience

  • Johnson Controls (Full-time · 2 yrs 10 mos)
    • Technical Support Team Lead
      Feb 2026 - Present · 6 mos

    • L3 support
      Oct 2024 - Feb 2026 · 1 yr 5 mos

    • QA Server Engineer
      Oct 2023 - Oct 2024 · 1 yr 1 mo

  • System Administrator at NDA
    Dec 2021 - Oct 2023 · 1 yr 11 mos

    - Administration of servers: Linux (CentOS, Debian) \ Windows Servers - Monitoring of IT systems with ZABBIX - Administration of virtual servers in the Proxmox environment (KVM\QEMU) - Сonfiguring I2P, OpenVPN, Wireguard, Tor, Mikrotik, Stunnel, and Matrix - Reporting Bugs in Jira - Support for WEB portals (Apache, Nginx) - Develop Python bots for working with servers - Setting up and configure Mikrotik routers - Write BASH scripts to automate standard routine settings

  • Web Developer at AVCOMPANY
    Apr 2022 - Aug 2023 · 1 yr 5 mos

    - Designed websites using HTML, CSS, and JS - Incorporated and written PHP scripts for them - Created website designs on WordPress - Proficient in Figma - Involved in domain procurement and configuration - Configured and installed Keitaro - Set up Facebook advertising campaigns