Dennis Krupenik

Experience

10/1999—06/2001:

SINEI NOC

(https://sinp.com.ua)

Project: students and teachers database, user interface, web interface.

Tags: –°++, Visual Basic, ASP, SQL Server

08/2002—08/2003:

Confidential Connections

(https://confidentialconnections.com)

Projects: automated web clients, local class library development, internal project (company site internationalization), company site support and development, statistic analysis.

Tags: Python, HTML, CSS, MySQL

08/2003—11/2003:

NIX Solutions

(https://nixsolutions.com)

Project: caching and image processing http proxy server.

Tags: C, POSIX, BSD Sockets

03/2005—01/2008:

Forma

(https://forma-pro.info)

Support and development of Netcera Datasite (https://netcera.com). Netcera Datasite was a hosting panel and application server, easying rapid deployment and maintenance of database-driven websites. The architecture allows to extend core codebase with plugins.

Tags: PHP, Perl, HTML, CSS, Javascript, Git, MySQL

02/2008—11/2008:

UALadys

(https://ualadys.com)

Tags: Ruby on Rails, Python, HTML, CSS, Subversion, Git, MySQL, PostgreSQL

11/2008—11/2009:

Itabix

(https://itabix.com)

Senior Software Engineer
Moving Netcera Datasite from PHP to Ruby on Rails. Itabix WAM continues and develops ideas of Netcera Datasite, including new revolutionary generation of Ruby-on-Rails-specific code out of business object definition language and improved Finder-like user interface.

Tags: Ruby on Rails, PHP, HTML, CSS, Javascript, Scrum, Git, MySQL, PostgreSQL

10/2009—02/2018:

Maska

(https://www.maska.kh.ua)

CTO/CIO
For customers Maska is a catalogue and order form of carnival costumes, mascots and toys.
For employees it is an order management, stock-keeping, accounting and content management system.

Tags: Ruby on Rails, HTML, CSS, Javascript, Scrum, Git, PostgreSQL

01/2010—12/2014:

Undisclosed web project (highload)

Solution Architect

Tags: PHP, Ruby, Python, Javascript, Agile, Git, MySQL, React.js

11/2008—...

Line Software

(https://line.digital)

Solution Architect

Tags: HTML, CSS, Scala, Ruby, PHP, Javascript, Scrum, Git, React.js, GraphQL, Ruby on Rails

02/2018—...:

Zkazka

(https://zkazka.com)

CTO/CIO
WIP: Promo leaflet and e-commerce platform

Tags: HTML, CSS, Javascript, Scrum, Git

02/2017—...:

Independent Contractor

Tags: HTML, CSS, Javascript, Git, Ruby, Ruby on Rails, Javascript, Typescript, React.js, Python, PoostgreSQL, MySQL, Elasticsearch, Redis, Scrum, Engineering Management

Education

09/1998—06/2001:

Sevastopol Institute of Nuclear Energy and Industry

, “Nuclear Energy Industry”

09/2001—06/2002:

Kharkiv National University of Radioelectroni—Ās

, “Intellectual Decision-Making Systems”

Miscellaneous

A lot of experience with Apache and nginx, long track of Linux administration and everyday use (RH-based, Gentoo, Alpine, etc), experienced Mac OS X user.
Currently interested in functional programming (Scala, Clojure, Elixir), artificial intelligence and machine learning, and UI/UX design.
Fluent written and spoken English.