- Software EngineerHealthJoy2014 - 2016
- Gained knowledge of the American health insurance system.
- Contributed to the composition of up to 70% of the project's test coverage.
- Tried several XMPP solutions and created a high-load solution with ejabberd.
- Wrote a Cron-like daemon for RQ.
- Collaborated with team members in an Agile/Scrum environment, which increased productivity.
- Improved ability to communicate with clients in English.
- Created docker-based development environment, which allows new and current developers quickly setup required project infrastructure.
Technologies: Python, Flask, RQ, AngularJS - EntepreneurVisamap2010 - 2014
- Created a custom world map using MapServer.
- Created a number of fetchers from different sources.
Technologies: Python, GeoDjango - CTOSkiliks2013 - 2013
- Converted a prototype with write-only code to a production-ready project, including working architecture and unit-tests (PHPUnit and Buster.JS)
- Switched development to a Scrum-like process.
- Founded a team of qualified software/QA engineers in Kyiv, Ukraine.
- Replaced buggy code (built over two month of development) with a remote API of existing services.
- Refactored and rewrote numerous project parts.
- Covered code with JS/PHPUnit tests (over 180 tests created).
- Administrated development/production servers.
Technologies: PHP, Yii, JavaScript, Backbone.js - Software EngineerMybook2012 - 2013
- Chose the programming language and technology package for the company (Python/Django 1.4/Celery).
- Created a CI environment with 1100 passing tests (tests were mostly for used applications)
- Used a variety of public modules instead of writing redundant code, patching them if needed.
- Created a large project with an efficient, clean code structure.
- Created numerous bugreports in Django bugtracker with patches.
- Developed a public API with Django Tastypie.
- Improved Django Coffin so that it worked as a transparent template loader.
Technologies: Python, Django, Celery, Jinja2 - Software EngineerKinohod2011 - 2011
- Refactored a complex body of code, making it more supportable.
- Created a cell phone website version of the code using jQuery Mobile.
Technologies: Perl, Catalyst, jQuery Mobile - Software EngineerRambler-Afisha Internet Holding2009 - 2011
- Developed highly-scalable internet applications
- Optimized a database for high load processing.
- Refactored a service handling over 10 million requests per day.
- Improved the libpurple library to support a large number of accounts.
- Improved the speed and code quality of existing code.
Technologies: Perl, Catalyst, C++, node.js, PL/pgSQL, PHP - Software EngineerPrivatbank2007 - 2009
- Created a peer-to-peer money transfer application.
- Developed a service to take 25 web site screenshots per second.
- Created a sandbox for using compilers with online IDEs.
- Used a partial MySQL master-master replication to create two interfaces: one was public with public data and one was private in a bank network with private data.
- Created a complex administrator panel for payment transaction monitoring.
Technologies: Perl, Lua, C#
