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$20 USD / hour
Flag of POLAND
zielona gora, poland
$20 USD / hour
It's currently 11:34 AM here
Joined March 11, 2010
0 Recommendations

Patryk H.

@esafeguard

 4.7 (24 reviews)
5.5
5.5
65%
65%
$20 USD / hour
Flag of POLAND
zielona gora, poland
$20 USD / hour
97%
Jobs Completed
100%
On Budget
93%
On Time
13%
Repeat Hire Rate

Web Development / On-Page SEO / Programming

I'm a freelance web developer, SEO expert (on site optimization), website administrator and programmer. I can issue EU invoices. I know PHP and JavaScript. I have worked on securing, maintaining and plugin/theme development for WordPress websites on Linux servers. I have experience in creating interactive maps, charts and flowcharts in JavaScript.
Freelancer PHP Developers Poland
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Portfolio

229368
In this case this is a charting application, but any complex application that retrieves data from a database is possible. The communication with the database uses AJAX, so it works without refreshing the page. After retrieving the data, it can be presented in unlimited kinds of ways, and with JavaScript/AJAX the application can be interactive. The charts show daily (detailed) and monthly (sampled) charts. The sampled chart type is called candlestick chart.
PHP & JavaScript/AJAX Applications
In this case this is a charting application, but any complex application that retrieves data from a database is possible. The communication with the database uses AJAX, so it works without refreshing the page. After retrieving the data, it can be presented in unlimited kinds of ways, and with JavaScript/AJAX the application can be interactive. The charts show daily (detailed) and monthly (sampled) charts. The sampled chart type is called candlestick chart.
PHP & JavaScript/AJAX Applications
In this case this is a charting application, but any complex application that retrieves data from a database is possible. The communication with the database uses AJAX, so it works without refreshing the page. After retrieving the data, it can be presented in unlimited kinds of ways, and with JavaScript/AJAX the application can be interactive. The charts show daily (detailed) and monthly (sampled) charts. The sampled chart type is called candlestick chart.
PHP & JavaScript/AJAX Applications
In this case this is a charting application, but any complex application that retrieves data from a database is possible. The communication with the database uses AJAX, so it works without refreshing the page. After retrieving the data, it can be presented in unlimited kinds of ways, and with JavaScript/AJAX the application can be interactive. The charts show daily (detailed) and monthly (sampled) charts. The sampled chart type is called candlestick chart.
PHP & JavaScript/AJAX Applications
582839
Original designs with code compliant to standards and optimized for SEO and mobile devices.
Web Design
Original designs with code compliant to standards and optimized for SEO and mobile devices.
Web Design
Original designs with code compliant to standards and optimized for SEO and mobile devices.
Web Design
Original designs with code compliant to standards and optimized for SEO and mobile devices.
Web Design
Original designs with code compliant to standards and optimized for SEO and mobile devices.
Web Design
201312
The project consisted of a improvement of a D3 chart wrapper. I added the support for multiple line charts, multiple axis (left and right y-axis), a selector for zooming the chart and the background chart highlights for indicating important data selections. I also fixed some errors in the OOP design of the D3 wrapper.
D3 Line Chart
1267269
Created in JavaScript/D3. Each colour represents a frequency of visits for a given data.
A Heatmap Chart
566690
An interactive map in JavaScript. Hovering or clicking on the counties can trigger various events - popups, colour change etc. The map can be configured with a simple XML, CSV, database. An administration panel with login can be also created.
USA State and County Map
An interactive map in JavaScript. Hovering or clicking on the counties can trigger various events - popups, colour change etc. The map can be configured with a simple XML, CSV, database. An administration panel with login can be also created.
USA State and County Map
An interactive map in JavaScript. Hovering or clicking on the counties can trigger various events - popups, colour change etc. The map can be configured with a simple XML, CSV, database. An administration panel with login can be also created.
USA State and County Map
391305
A flowchart/graph, showing organization relationships, created in JavaScript/HTML/CSS. The data is read from a configuration file which can be modified. The graph items colours and connection types are configurable. The project design was provided by the client.
Flowcharts and website graphs
229368
In this case this is a charting application, but any complex application that retrieves data from a database is possible. The communication with the database uses AJAX, so it works without refreshing the page. After retrieving the data, it can be presented in unlimited kinds of ways, and with JavaScript/AJAX the application can be interactive. The charts show daily (detailed) and monthly (sampled) charts. The sampled chart type is called candlestick chart.
PHP & JavaScript/AJAX Applications
In this case this is a charting application, but any complex application that retrieves data from a database is possible. The communication with the database uses AJAX, so it works without refreshing the page. After retrieving the data, it can be presented in unlimited kinds of ways, and with JavaScript/AJAX the application can be interactive. The charts show daily (detailed) and monthly (sampled) charts. The sampled chart type is called candlestick chart.
PHP & JavaScript/AJAX Applications
In this case this is a charting application, but any complex application that retrieves data from a database is possible. The communication with the database uses AJAX, so it works without refreshing the page. After retrieving the data, it can be presented in unlimited kinds of ways, and with JavaScript/AJAX the application can be interactive. The charts show daily (detailed) and monthly (sampled) charts. The sampled chart type is called candlestick chart.
PHP & JavaScript/AJAX Applications
In this case this is a charting application, but any complex application that retrieves data from a database is possible. The communication with the database uses AJAX, so it works without refreshing the page. After retrieving the data, it can be presented in unlimited kinds of ways, and with JavaScript/AJAX the application can be interactive. The charts show daily (detailed) and monthly (sampled) charts. The sampled chart type is called candlestick chart.
PHP & JavaScript/AJAX Applications
582839
Original designs with code compliant to standards and optimized for SEO and mobile devices.
Web Design
Original designs with code compliant to standards and optimized for SEO and mobile devices.
Web Design
Original designs with code compliant to standards and optimized for SEO and mobile devices.
Web Design
Original designs with code compliant to standards and optimized for SEO and mobile devices.
Web Design
Original designs with code compliant to standards and optimized for SEO and mobile devices.
Web Design
201312
The project consisted of a improvement of a D3 chart wrapper. I added the support for multiple line charts, multiple axis (left and right y-axis), a selector for zooming the chart and the background chart highlights for indicating important data selections. I also fixed some errors in the OOP design of the D3 wrapper.
D3 Line Chart
1267269
Created in JavaScript/D3. Each colour represents a frequency of visits for a given data.
A Heatmap Chart
566690
An interactive map in JavaScript. Hovering or clicking on the counties can trigger various events - popups, colour change etc. The map can be configured with a simple XML, CSV, database. An administration panel with login can be also created.
USA State and County Map
An interactive map in JavaScript. Hovering or clicking on the counties can trigger various events - popups, colour change etc. The map can be configured with a simple XML, CSV, database. An administration panel with login can be also created.
USA State and County Map
An interactive map in JavaScript. Hovering or clicking on the counties can trigger various events - popups, colour change etc. The map can be configured with a simple XML, CSV, database. An administration panel with login can be also created.
USA State and County Map
391305
A flowchart/graph, showing organization relationships, created in JavaScript/HTML/CSS. The data is read from a configuration file which can be modified. The graph items colours and connection types are configurable. The project design was provided by the client.
Flowcharts and website graphs

Reviews

Changes saved
Showing 1 - 5 out of 24 reviews
Filter reviews by:
5.0
$15.00 USD
English to Polish Translaiton
Prompt and accurate translations! Highly recommended!
Translation
Polish Translator
English (US) Translator
User Avatar
Flag of Sean L.
@cyboglobal
•
9 years ago
4.0
$750.00 USD
Use the D3 library to recreate a \\\"Stock Chart\\\"
esafeguard provided frequent updates and timely communication. The code delivered was of high quality; he is very knowledgeable with respect to D3.
JavaScript
T
Flag of Tyler C.
@tyler4vw
•
10 years ago
4.4
$450.00 USD
Project 5815166 has been deleted
Very good work.
J
Closed User
@JimHagan1
•
10 years ago
4.8
zł214.00 PLN
PL --> ENG, Tłumaczenie [e-book]: 1900 znaków
Great communication. Fast and complete work!
Translation
English (US) Translator
User Avatar
Flag of Adam K.
@artemik
•
10 years ago
5.0
$310.00 USD
Project 5528720 has been deleted
This developer followed the spec and was also creative enough to understand where there may have been gaps in the spec. The work was well coded and matched my vision of what the new feature would be like.
J
Closed User
@JimHagan1
•
10 years ago

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Certifications

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Top Skills

PHP 17
HTML 14
CSS 11
JavaScript 9
jQuery / Prototype 8

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