Valentine Zavadskiy

5.0

(1 reviews)

US$24.99

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ABOUT ME

Web-developer with 7+ years of experience.

Start doing web-development at the age of 16. Since that launched a lot of projects, mostly using Ruby on Rails. CEO of consulting company with 15+ people.

Russian, English

Minsk (+03:00)

Joined May 2015

EXPERTISE

Ruby

5 years experience

In strong relationships with Ruby since 2009. Build huge number of applications, tools and libraries for last 5 years.

Web Crawling RSpec Minitest Minimagick ImagickScriptsMetaprogramming Shell

HTML/CSS

8 years experience

When i start doing web development most layout in the web was based on inline styling. Was incredibly happy when discovered CSS.

HTML/CSS CSS3

JavaScript

7 years experience

Used javascript to build all-kind of rich UI components for a long time. Since node.js came out using it for server part as well.

Es6 Es5 Node.js

Es6 Es5 Node.js JavaScript OOP JavaScript MVC Jslint Jshint JavaScript Events JavaScript

Shell

5 years experience

I am unix-only user since 2009. Using shell to write different scripts for automation.

DevOps Bash Zsh

DevOps Bash Zsh Oh my zshEnvironment variablesDevelopment

Cucumber

4 years experience

Cucumber is mostly used for integrations tests for all my projects.

Cucumber Capybara Capybara webkit

Cucumber Capybara Capybara webkitCapybara and cucumberCapybara cucumber

SQL

7 years experience

Get familiar with SQL in high-school. Professionally using it more than 5 years. Have a unique experience of developing, maintaining and ...

Get familiar with SQL in high-school. Professionally using it more than 5 years. Have a unique experience of developing, maintaining and optimizing analytics DB with 20+ million events a month.

Microsoft SQL Server SQL PostgreSQL

Microsoft SQL Server SQL PostgreSQL MySQL Pg Pg search SQLite Sql injection SQL Queries Analytics

Ruby on Rails

5 years experience

Fall in love in RoR in 2010. I can't even describe this technology look cool comparingto my primary ( ASP.Net MVC ) tool i used that time...

Fall in love in RoR in 2010. I can't even describe this technology look cool comparingto my primary ( ASP.Net MVC ) tool i used that time. For last 5 years i use Ruby on Rails for all kind of web development, starting from simple systems, ending high-performance analytics tools with thousands users.

Rails 4 Active admin Ruby on rails3

Rails 4 Active admin Ruby on rails3 Rails API Rails Asset Pipeline Rails ActiveRecord Rails migrations Railsadmin Rails engine RSpec for Rails Rails ConsoleRails flashRails wizardRuby on Rails

REVIEWS FROM CLIENTS

5.0

(1 reviews)

Mark

May 2015

Great help!