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$15 USD / hour
Flag of UAFlag of UA
kharkiv,
ukraine
$15 USD / hour
It's currently 2:31 AM here
Joined April 7, 2015
0 Recommendations

Kostyantyn R.

@techdevs

annual-level-four.svg
5.0
(15 reviews)
5.0
(15 reviews)
5.3
5.3
$15 USD / hour
Flag of UAFlag of UA
kharkiv,
ukraine
$15 USD / hour
84%
Jobs Completed
100%
On Budget
100%
On Time
10%
Repeat Hire Rate

Enterprise-level Web designer & developer

I'm a senior web designer & developer with 7 years of experience working for leading digital agencies and software development providers in the US and EU. Now I work as a freelancer, looking for individuals and companies with ongoing design & development needs. Summery: - Ready to start from raw idea/sketch to provide modern look high-end solution; - Solid experience of designing and developing of high-load enterprise level server applications, providing performance optimization; - Strong skills in database design and optimization; - Further support of clients` solutions is always welcome; - Fluent communication in English: daily voice calls with ongoing reports. Core skills: - Database: mysql, postgresql, infinidb, redis, memcache; - Frameworks: zend1, yii1/2, laravel4/5, Django; - UX/UI design; - Responsive front-end coding (HTML5/CSS3/Sass/Gulp/jQuery, JS etc); - PHP; - CMS: WordPress, Drupal, Shopify, etc; - CVS: git, svn; - System Administration; - SEO.
Freelancer
PHP Developers
Ukraine

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Portfolio Items

A web, shopify-based, solution where a user is able to create his own map poster with the help of the Online Map Poster creator tool. When the poster is created, an admin receives ready to print file.
Custom Online Map Poster Creator
A web, shopify-based, solution where a user is able to create his own map poster with the help of the Online Map Poster creator tool. When the poster is created, an admin receives ready to print file.
Custom Online Map Poster Creator
A web, shopify-based, solution where a user is able to create his own map poster with the help of the Online Map Poster creator tool. When the poster is created, an admin receives ready to print file.
Custom Online Map Poster Creator
Online management platform for brokers
Broker Portal
Online management platform for brokers
Broker Portal
Online management platform for brokers
Broker Portal
Online management platform for brokers
Broker Portal
Online management platform for brokers
Broker Portal
Online management platform for brokers
Broker Portal
Online management platform for brokers
Broker Portal
Online management platform for brokers
Broker Portal
Online management platform for brokers
Broker Portal
Online analytics tool which collects, processes and displays data. The system receives data automatically from different hardware devices.
Cloud-based Data Analytics Dashboard
Online analytics tool which collects, processes and displays data. The system receives data automatically from different hardware devices.
Cloud-based Data Analytics Dashboard
Online analytics tool which collects, processes and displays data. The system receives data automatically from different hardware devices.
Cloud-based Data Analytics Dashboard
Online analytics tool which collects, processes and displays data. The system receives data automatically from different hardware devices.
Cloud-based Data Analytics Dashboard
The system provides ability to equip any number of locations with automatic video surveillance, connecting them all to a system that offers access from anywhere in the world.
Enterprise automatic video surveillance system
The system provides ability to equip any number of locations with automatic video surveillance, connecting them all to a system that offers access from anywhere in the world.
Enterprise automatic video surveillance system
The system provides ability to equip any number of locations with automatic video surveillance, connecting them all to a system that offers access from anywhere in the world.
Enterprise automatic video surveillance system
Logo design from raw idea
Logo Design
Logo design from raw idea
Logo Design

Reviews

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Showing 1 - 5 out of 15 reviews
Filter reviews by: 0.0
$19.00 USD
The project is not completed according to the dispute
PHP
Website Design
Graphic Design
WordPress
HTML
User Avatar
Flag of US Alex A. @aguilarsd321
1 year ago
1.0
$462.00 USD
Lost time! This developer periodically does not get in touch. Lying a lot. The project eventually did not.
PHP
CSS
eCommerce
MySQL
HTML
User Avatar
Flag of US Dennetic G. @dennetic
1 year ago
5.0
$220.00 USD
Great work, contributed relevant aspects to improve achritecure and works speditiv and pragmatic.
Project Management
Engineering
Drupal
Software Development
Software Documentation
User Avatar
Flag of CH Beat B. @Livenet7
1 year ago
5.0
€750.00 EUR
Outstanding result! Great tipps and advice for UX and UI. Will work with Kostia on future projects for sure. :-)
PHP
JavaScript
CSS
HTML
Shopify Templates
User Avatar
Flag of DE Yannick H. @yannickhalm
1 year ago
5.0
$1,560.00 CAD
A very cooperative team, fast and professional problem-solving.
PHP
Website Design
Graphic Design
WordPress
HTML
Hire me
User Avatar
Flag of CA Sergey S. @EnginuityInc
2 years ago

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Certifications

mysql-1.png MySQL 1 98% php_1.png PHP 1 95% WordPress.png WordPress 1 93% jquery-1.png JQuery 1 93% html_1.png HTML 1 90%

Top Skills

PHP
11
HTML
10
Website Design
9
Graphic Design
8
WordPress
6

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