Oleksandr Gubernatorov, Developer in Vinnytsia, Vinnyts'ka oblast, Ukraine
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Oleksandr Gubernatorov

Verified Expert  in Engineering

DevOps Engineer and Developer

Vinnytsia, Vinnyts'ka oblast, Ukraine

Toptal member since March 21, 2020

Expertise
Open Source DevelopmentAnsibleAutomationDockerDevOpsJenkinsPythonKubernetesCloud EngineeringUbuntuMySQLWowza
Bio

Oleksandr is a DevOps culture practitioner who supports fast, sustainable software delivery and infrastructure changes through automation while encouraging the collaboration of development and operations teams. Along with over six years of hands-on experience, Oleksandr specializes in automation implementations—primarily using Ansible—and thrives in a Kubernetes environment.

Portfolio

Exadel
Amazon Web Services (AWS), Docker, Helm, Python, Kubernetes, Jenkins, Ansible...
Vimmi (A CDN Company)
Monitoring, Networking, Linux, Bash, Python, Proxmox, Varnish, Kubernetes...
Sprava
TrueCrypt, DM-Crypt, Amazon EC2, Red Hat Linux, CentOS, Debian, Ubuntu

Experience

  • Open Source - 6 years
  • Ansible - 6 years
  • Automation - 5 years
  • DevOps - 4 years
  • Jenkins - 2 years
  • Kubernetes - 2 years

Availability

Part-time

Preferred Environment

Amazon Web Services (AWS), On-premise, Jenkins, Kubernetes, Ansible

The most amazing...

...project was automating the Kubernetes infrastructure provisioning on AWS and Azure platforms from a singe point.

Work Experience

Senior DevOps Software Engineer

2019 - PRESENT
Exadel
  • Automated the deployment and provisioning of a GCP Kubernetes service in a secure (bastion-protected) private network.
  • Automated the deployment, delivery, and provisioning of AWS, Azure, Kubernetes services from a single point.
  • Improved AWS infrastructure usage statistic gathering from 37 hours to seven minutes using serverless and parallelism.
  • Automated the build of a secure/custom operation system images on the AWS platform.
Technologies: Amazon Web Services (AWS), Docker, Helm, Python, Kubernetes, Jenkins, Ansible, Google Cloud Platform (GCP), Azure

DevOps Engineer | IT Team Lead

2015 - 2019
Vimmi (A CDN Company)
  • Worked as a senior system administrator and provided/implemented a DevOps methodology.
  • Served as the head of company's IT department and operations.
  • Drove the company to a new automated approach of infrastructure provisioning and application delivery.
  • Improved security, monitoring, logging, networking, high availability, deployment, and delivery process.
Technologies: Monitoring, Networking, Linux, Bash, Python, Proxmox, Varnish, Kubernetes, Docker, Jenkins, Ansible

Middle/Senior Linux Administrator

2012 - 2015
Sprava
  • Implemented a security audit, vulnerability testing, and encryption service.
  • Developed an operations system encryption service for cloud environment.
  • Performed system and network administration of Linux and Windows machines.
  • Provided CDN services such as Linux system administration.
  • Contributed to the network infrastructure administration along with security administration.
  • Monitored the system and network and provided technical support.
Technologies: TrueCrypt, DM-Crypt, Amazon EC2, Red Hat Linux, CentOS, Debian, Ubuntu

Junior Linux System Administrator

2012 - 2012
Tangram
  • Worked with the following technologies: Ubuntu, Centos, Debian, Windows server, Samba, Nginx, Apache, TCP/IP, HTTP, HTTPs, SMTP, FTP, IPv4, routing, and switching.
  • Learned and used the following technologies: IP-KVM, PXE, PDU (APC), MySQL, Subversion, KVM, OpenVZ, VirtualBox, Nagios, SNMP, OpenNMS, iptables, OpenVPN, CSF/LFD, Fail2ban, Bash, and PHP.
  • Helped clients and customers with the setup and configuration of their environments, sites, servers, and hosting.
  • Contributed to the development of ticket systems, fixed issues, and implemented platform improvements.
Technologies: Databases, Virtualization, FTP, Email, Networking, Web Servers, Security, Windows Server, Linux

VoIP Engineer | Junior Linux System Administrator

2011 - 2011
Deshevshe
  • Built an internal ATC from scratch for a web store's call center.
  • Improved and extended the ATC with IVR, voice recording, and an order check feature.
  • Built the ATC so soundly it is still working with core IVR (since 2011); it's extended but functional.
  • Obtained and used a basic knowledge of computer networks, system and network administration, and Linux.
Technologies: VoIP, Soft Phones, Trixbox, FreePBX, FreeSWITCH, Asterisk, Iptables, Networking, CentOS

Cross-cloud Kubernetes Infrastructure Deployment

I developed an automation platform configured upon Azure DevOps service that made it possible to deploy EKS and AKS clusters in existing and well-prepared networks. It handled the subsequent delivery of most common monitoring, logging and security software. You can demo the state-full application at request.

On-premise CDN

I built a content delivery network upon open-source software on bare-metal servers hosted in geo-distributed dedicated data centers. The system components were the following: a virtualization platform, caching tier, application tier, database tier, orchestration tier, storage tier, HA software layer, smart DNS, centralized IPA, clustered network layer, Kubernetes, monitoring, and logging.
2006 - 2011

Master's Degree in Protection of Computer Systems and Networks

Vinnytsia National Technical University - Vinnytsia, Ukraine

FEBRUARY 2020 - FEBRUARY 2022

CKAD: Certified Kubernetes Application Developer

The Linux Foundation

OCTOBER 2019 - OCTOBER 2022

CKA: Certified Kubernetes Administrator

The Linux Foundation

APRIL 2018 - APRIL 2020

CWIP: Widevine Modular DRM

Google

Libraries/APIs

FFmpeg

Tools

Ansible, Jenkins, OpenVPN, Azure Kubernetes Service (AKS), Amazon EKS, Google Kubernetes Engine (GKE), Keepalived, Wowza, Iptables, Asterisk, FreeSWITCH, FreePBX, Trixbox, TrueCrypt, Varnish, Helm

Languages

Bash, Python

Paradigms

DevOps, Automation

Platforms

Ubuntu, Docker, Amazon Web Services (AWS), Kubernetes, Azure, Google Cloud Platform (GCP), CentOS, Linux, Windows Server, Debian, Red Hat Linux, Amazon EC2, Proxmox

Storage

MySQL, GlusterFS, MongoDB, On-premise, Databases

Other

Networks, Security, Open Source, Distributed Systems, HAProxy, Virtual Router Redundancy Protocol (VRRP), NFS, Networking, Soft Phones, VoIP, Web Servers, Email, FTP, Virtualization, DM-Crypt, Monitoring

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