Ivan Cropotov, Developer in Chișinău, Chisinau, Moldova
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Ivan Cropotov

Verified Expert  in Engineering

Software Developer

Chișinău, Chisinau, Moldova
Toptal Member Since
February 29, 2016

Lately, Ivan's been building and maintaining Kubernetes clusters in AWS and related DevOps tasks for a highly loaded telecommunication project—reaching better performance, infrastructure cost reduction, and a more reliable deployment process. Ivan also excels at developing various microservice apps (Node.js/Go) within the project. Ivan prides himself on his clear communication skills with both his team and management.


Subcomediante LLC
Moment.js, DNS, Google Cloud, Node.js, CSS, DevOps, Bash, Domains & Hosting...
Jenkins Pipeline, DNS, Docker Compose, Google Cloud, Redis, DevOps, Go, Bash...
Amazon Web Services (AWS), Jenkins Pipeline, DNS, Redis, DevOps, Bash...




Preferred Environment

Vim Text Editor, IntelliJ IDEA, Bash, Git, Linux, MacOS

The most amazing...

...thing I've done is the complete architecture redesign and implementation of an online game project from a raw JavaScript framework that enabled its launch.

Work Experience

Full-stack Developer

2020 - PRESENT
Subcomediante LLC
  • Designed and planned out complicated filtering of org-mode files for a Vue.js front end with conditional displaying and nested parsing.
  • Added an SSO (single sign-on) solution using embedded iframes and token interchange.
  • Created automated CI/CD using Google Cloud (Google Cloud run to Google Storage and Google Cloud functions).
Technologies: Moment.js, DNS, Google Cloud, Node.js, CSS, DevOps, Bash, Domains & Hosting, Iframes, Google Sheets API, Continuous Deployment, Google Sheets, Google Cloud Functions, Serverless, Vuex, Lodash, CSS3, HTML5, Vue, Vue 2

Site Reliability Engineer | Go Engineer

2019 - 2020
  • Developed a ​CLI​ tool for deploying services that maintained cluster status on ​a GitOps​ repository for stable deployment and easy cluster handle/transform.
  • Fixed a bug with the Elastic APM plugin (found a bug in the official repository and worked it out together with the ELK team), making my own contribution to open-source majesty.
  • Resolved tedious issues with services using ​Go​ related to image caching, latency spikes, as well as developing requested tweaks and suggestions with TDD and some refactoring.
  • Maintained and optimized Kubernetes cluster on GCP platform, set up monitoring/alerting, error rates and logging to ELK, making sure that SLO, SLI, and SLA are inline.
  • Optimized search times and shard allocations/index rotation for ELK.
  • Resolved bugs related to latency spikes, caching/database, load, and balancing/scaling.
  • Improved deployment stability by implementing a graceful shutdown of the services.
Technologies: Jenkins Pipeline, DNS, Docker Compose, Google Cloud, Redis, DevOps, Go, Bash, REST APIs, Domains & Hosting, Cloud, Jenkins, Continuous Delivery (CD), Continuous Integration (CI), Docker, Kubernetes

DevOps Engineer

2018 - 2019
  • Redesigned the log pipe to ELK stack by optimizing the app runtime information collection.
  • Launched a Sentry service for error aggregation and alerting.
  • Urgently tweaked and hot-fixed an existing CICD solution when it broke and the development was stuck.
  • Set up cluster monitoring to get critical performance stats.
  • Refactored the infrastructure to run on JenkinsX as CI/CD.
Technologies: Amazon Web Services (AWS), Jenkins Pipeline, DNS, Redis, DevOps, Bash, REST APIs, Domains & Hosting, ELK (Elastic Stack), Jenkins, Docker, Kubernetes

DevOps/Node.js Developer

2016 - 2018
Veoo Limited
  • Wrapped project microservices into Docker containers, crafted CI/CD and launched production grade Kubernetes cluster on AWS with profiling metrics and logging to ELK.
  • Found and resolved a large number of bugs and applied best coding practices and patterns.
  • Refactored the whole project to a new logging system, that allowed us to send logs to the Elasticsearch engine.
  • Migrated a portion of the project's data from MongoDB to a more suitable and cheap MySQL solution.
  • Added various microservice parts for mail parsing, speaking to providers over DNS, and system-level testing.
  • Implemented features for the sales team and client integrations using both Go and Node.js.
  • Split and downsized production MySQL for cost optimization.
Technologies: RabbitMQ, DNS, Redis, Node.js, DevOps, Go, Bash, REST APIs, Domains & Hosting, Git, Amazon Web Services (AWS), PHP, MySQL, Docker, Kubernetes

Freelance Web App Developer (Node.js, Backbone.js, Marionette.js)

2016 - 2016
Peak Shift, Inc. (via Toptal)
  • Successfully refactored an existing Backbone.js part to use a Marionette.js structure.
  • Built new features for the app, using the whole stack; I added new pages and UI elements (HTML, CSS, and jQuery), proper submit and front-end processing (Marionette.js) and added back-end endpoints for necessary logic handling (Node.js, MySQL).
  • Successfully achieved creating deep-nested views structure, proper rendering, and refreshing with Marionette's regions.
  • Suggested and implemented UX flow details and necessities leading to clearer design and app overall.
  • Managed with a client to create clear milestones, estimated and moved towards successfully achieving those.
Technologies: Node.js, CSS, Bash, REST APIs, Git, HTML, Backbone.js, Marionette.js

Online Game Developer

2014 - 2016
  • Developed a live-notification system using WebSockets and an asynchronous Tornado framework, which optimized the amount of database requests more than 10x.
  • Created an achievement calculator for players that belonged to a particular virtual city which included aggregating 40 metrics, distributing prizes, and rendering on the front-end.
  • Designed architecture for back-end by refactoring a PHP mono repository into Node.js microservices with RabbitMQ as a communication layer and Redis as the cache.
  • Tweaked a Cordova plugin for Google Play Game Sevices. This added functionality for offline authorization, handling calls, and posting achievements on the Leaderboards API from the back end.
  • Developed more than 50 complicated pages (pop-ups, animations, and transitions) for the SPA version of the game for mobile platforms using a front-end Marionette framework with jQuery, as well as implementing the API for it on the back end.
  • Completely restructured a game module using a machine pattern, which led to a 10x faster response.
  • Designed the front-end and mobile architecture (Сordova, HTML/CSS, and Marionette.js).
  • Designed and laid out a refactored architecture using Marionette.js/Backbone.js with RequireJS leading to the project launch.
Technologies: Moment.js, RabbitMQ, Push Notifications, Cordova, Redis, Node.js, CSS, Bash, REST APIs, Domains & Hosting, SCSS, HTML5, PostgreSQL, PHP, Java, Python, Marionette.js, CoffeeScript, JavaScript

Web Developer

2012 - 2013
  • Completely changed the authorization process for a small social network which included Facebook and Google authorization, altering the existing user recognition. Basically redesigned it with completely different UI dynamic features with HTML, CSS, and JavaScript.
  • Added a feature of managing groups profile with personal profiles; adding moderators and administrators roles.
  • Implemented a client management system in Django based on an online service API for processing data retrieved from special tire sensors. This included automatic email sending with Mandrill software, PDF rendering and structuring of reports, and presenting it all in a clean-and-organized interface.
Technologies: Push Notifications, Node.js, CSS, Django, Python, HTML, jQuery, MySQL


An online game (social-economic RPG simulator) currently launched for mobile platforms on major platforms (Android, iOS, and Windows Phone).

Participation in Southwest Baptist University's Computer Science Program

I completed my first year at Southwest Baptist University (Bolivar, MO) in the United States with a 4.0 GPA in the Computer Science program; totaling 25 units.

Vuu for Movies

Vuu is a media and TV-related startup that's been serving additional content for movies and shows. It's divided into three major domains—serving APIs for clients and iOS app, an internal tool for filling content, and some R&D ML part.

I've been making sure that infrastructure can handle the load, resolving networking issues, developing CI/CD awesomeness, and other SRE -elated issues and features, as well as implementing some GO development on the back-end site.
2007 - 2012

Bachelor's Degree in Building and Civil Engineering

Technical University of Moldova - Chisinau, Moldova


CS1156x: Learning from Data (Machine Learning)

California Institute of Technology via edX


REST APIs, Node.js, Jenkins Pipeline, Vue, Vue 2, Vuex, Google Sheets API, Lodash, Backbone.Marionette, Marionette.js, Redis Queue, Google+ API, Game Center, React, jQuery, Backbone.js, Underscore.js, CreateJS, Moment.js, Mustache, Google API, Facebook API, Passport.js


Elastic, Makefile, Make, Docker Compose, Ansible, Jenkins, Helm, Docker Hub, RabbitMQ, Terraform, PhpStorm, WebStorm, ELK (Elastic Stack), Google Sheets, IntelliJ IDEA, Vim Text Editor, NPM, Git, Mongoose, Grunt, Apple Push Notifications, Knex.js, Capistrano


HTML, Bash, Go, JavaScript, CSS, Bash Script, Python, Java, SQL, CSS3, PHP, HTML5, CoffeeScript, SCSS


Microservices Architecture, DevOps, Windows App Development, API Architecture, Web Architecture, Microservices, Object-relational Mapping (ORM), Promise, Continuous Deployment, Continuous Integration (CI), Continuous Delivery (CD), RESTful Development, Functional Programming, REST, Declarative Programming, Agile Software Development, Kanban


Amazon EC2, Docker, Kubernetes, Amazon Web Services (AWS), Linux, Heroku, MacOS, Windows, Android, iOS, Windows Phone


Google Cloud, Elasticsearch, Amazon S3 (AWS S3), Redis, Database Migration, Cassandra, MySQL, Relational Databases, PostgreSQL, MongoDB


CakePHP, FuelPHP, Django, Express.js, Redux


Prometheus, Monitoring, Minimum Viable Product (MVP), RESTful Microservices, Load Balancers, Domains & Hosting, Container Orchestration, Containers, Kubernetes Operations (kOps), Server Migration, DNS, Code Architecture, Google Cloud Functions, Scripting, Data Structures, Algorithms, Apache Cassandra, CTO, Serverless, Iframes, Cloud, Cordova, Google+ Authentication, Google Game Services, Ajax, Push Notifications, WebSockets, Async.js, Bluebird, Google+, Tornado

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