Dmitriy Kononov, Developer in Bishkek, Kyrgyzstan
Dmitriy is available for hire
Hire Dmitriy

Dmitriy Kononov

Verified Expert  in Engineering

Cloud Services Developer

Bishkek, Kyrgyzstan
Toptal Member Since
May 31, 2018

Dmitriy is a software developer and an enthusiastic promoter of useful DevOps practices and tools including CI/CD, infrastructure management bots, Terraform, Kubernetes, and more. He is focused on infrastructure cost reduction and high-volume instance management, and he has delivered on his commitments on time for every project he's worked on, from simple automation tasks to complex Go-based projects.


Meta® Data Systems (via Toptal)
Ruby on Rails (RoR), Ruby, Amazon Web Services (AWS)
HashiCorp, Prometheus, Ansible, Triton Compute, Rackspace, Cloud Platforms...




Preferred Environment

JetBrains, Bash, Git, MacOS

The most amazing...

...thing I've created was an awesome chatbot called Bender, based on Hubot, which makes any operation in a Slack channel interactive.

Work Experience

Freelance DevOps Engineer

2018 - 2018
Meta® Data Systems (via Toptal)
  • Created a Lambda function to push video files from S3 to MediaConvert with a specific profile.
  • Built a proof of concept (POC) with Ruby On Rails; the web app allows the user to (directly) upload a video file to S3 (with using multipart uploading) or select an uploaded video file from the bucket, upload subtitles, poster, input audio streams and other fields, and then push the job to MediaConvert. When the job is finished MediaConvert will notify the web app by triggering a webhook. Then the web app enables the user to play the processed video file and select a protocol (HLS, DASH), audio stream, or subtitle.
Technologies: Ruby on Rails (RoR), Ruby, Amazon Web Services (AWS)

Freelance DevOps Engineer

2018 - 2018
SAF Platform (via Toptal)
  • Migrated the entire infrastructure from Elastic Beanstalk to ECS and handled the cleanup.
  • Configured CircleCI for a CI pipeline for separated environments.
  • Built production Docker images for ECS.
  • Created an awesome chatbot for deploying services, executing tasks, and creating an isolated environment from a specified GitHub branch.
Technologies: Node.js, ECS


2015 - 2018
  • Built a nice continuous integration platform using AWS ECS, GitHub, and CircleCI.
  • Developed an awesome chatbot for operations, based on Hubot, that connects with Slack; used Node.js and Golang.
  • Implemented several cost reductions for the infrastructure which reduced the infrastructure cost by 50%.
  • Created an on-premise solution for all's services using Terraform and AWS services.
  • Used a chatbot and automated scripts to improve the workflow for the DevOps and support team.
Technologies: HashiCorp, Prometheus, Ansible, Triton Compute, Rackspace, Cloud Platforms, Amazon Web Services (AWS)

Web Developer

2014 - 2015
  • Created and supported client libraries for the's services; used Java, Node.js, and PHP.
  • Implemented some nice features for the user interface using RoR and CoffeeScript.
  • Developed an integration with the Azure marketplace using RoR, CoffeeScript, and Nginx as a proxy for validating a certificate.
Technologies: CoffeeScript, PHP, Python, Node.js, Java, Ruby on Rails (RoR)

Freelance Mobile/Web Developer

2013 - 2014
Freelance Work
  • Developed an Android application for a local market (Bereket-automation) using 1c as the back-end API; built up front-end using RoR and LeafletJS for the front-end and GeoServer and PostGIS for the back-end.
  • Created and supported a web application for agriculture monitoring; used RoR and Highcharts.
  • Built a cartographical web application; developed the front-end (RoR and LeafletJS) and the back-end (GeoServer and PostGIS) for user layers.
  • Implemented Mapnik, for the cartographical web app, in order to generate a base layer and Mominatim for data searches.
Technologies: Nominatim, Leaflet, PostGIS, GeoServer, Android, MySQL, Ruby on Rails (RoR)


2012 - 2013
Oymo Studio
  • Created a web application with an API for taxi services; used RoR as the server and Android application as the client for the driver and customer.
  • Built an AR mobile app for Android using the Vuforia platform and 3ds Max models.
  • Developed an online debate web application for the election of deputies using RoR, Wowza, FFmpeg, and JavaScript.
  • Divided the server into several virtual machines using Gemu for several projects.
Technologies: Flash, Android, Ruby on Rails (RoR)

Mobile/Web Developer

2012 - 2012
  • Developed a few plugins for Chrome, Firefox, and Safari for the Dolphin framework.
  • Supported and fixed several Android and iOS application.
Technologies: JavaScript, iOS, Android

Operations Manager

2011 - 2012
  • Created the initial infrastructure for the whole service.
Technologies: Unicast

Quality Assurance Engineer

2011 - 2012
  • Contributed to the social network engine for a Chinese market project as a quality assurance team member by creating automated tests for a web application.
  • Wrote automated QA tests for the "voter list" desktop application; dealt with the president election of Kyrgyz republic.
Technologies: Automated Testing, Selenium

Awesome Broadcasting Service

Work Done:
• Built one of the best online broadcasting services for the country that I live in. The service uses Unicast and Multicast broadcasting.
• Worked as the back-end developer and infrastructure engineer.
• Created a monitoring system for the entire project based on Graphite and Grafana and an alert system.
• Developed an Android application for mobile phones and TV.

DevOps at

Work Done:
• Built the awesome infrastructure for's services.
• Implemented several cost reductions for the entire infrastructure—reducing costs by 50%.
• Managed 150 instances at that service.
• Built Docker containers for critical services and built a continuous integration based on GitHub, CircleCI, and AWS ECS.
• Developed an awesome chatbot which can do almost everything for's services.
• Built an on-premise solution for the's services based on Terraform and AWS services.
• Wrote automated scripts used by the chatbot to make the lives of the DevOps and other teams easier.

Cartographic Service

Work Done:
• Created a nice cartographic service for the city I live in.
• Built the front-end (Ruby on Rails and LeafletJS) along with the plugins.
• Implemented Mapnik as the rendering base layer for the map.
• Used GeoServer to render the user's layers stored in PostGIS.
• Installed Nominatim which enabled the user to search for addresses on the map.
2006 - 2011

Master's Degree in Computer Science

Kyrgyz Technical University - Bishkek, Kyrgyzstan


Node.js, FFmpeg, Leaflet


Jira, Docker Hub, GitHub, Git, Helm, Jenkins, Docker Compose, Ansible, JetBrains, Flash, Unicast, HashiCorp, Chef


Ruby on Rails (RoR), Angular, Selenium, Spring Boot, Laravel


Continuous Integration (CI), Continuous Deployment, DevOps, Test-driven Development (TDD), Agile, Automated Testing


JavaScript, Bash, Ruby, Go, PHP 5, Java 8, Java, PHP, CoffeeScript, Python


Android, Amazon Web Services (AWS), CoreOS, Ubuntu, Docker, Kubernetes, Android TV, CentOS, Rackspace Cloud, JavaFX, MacOS, iOS, Rackspace, Triton Compute


Google Cloud, MySQL, Azure Cloud Services, GeoServer, PostGIS, PostgreSQL, MongoDB


Broadcast Design, Cloud Services, Ruby Gems, Nominatim, Cloud Platforms, Prometheus, ECS

Collaboration That Works

How to Work with Toptal

Toptal matches you directly with global industry experts from our network in hours—not weeks or months.


Share your needs

Discuss your requirements and refine your scope in a call with a Toptal domain expert.

Choose your talent

Get a short list of expertly matched talent within 24 hours to review, interview, and choose from.

Start your risk-free talent trial

Work with your chosen talent on a trial basis for up to two weeks. Pay only if you decide to hire them.

Top talent is in high demand.

Start hiring