Network & System Administrators

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Zhong W.

Zhong W.

Perl hacker and Voip Expert

China - Tests: 5

I have more than 8 years working experience of voip industry. i am proficient in Asterisk, Freeswitch, Kamailio,Fusionpbx, A2Billing, Freepbx,Freeside and Linux Administrator. And i have planned and built dozen multi-tenant carrier pbx. i have been always supporting two muti-tenant carrier pbx systems based thirdlane and FusionPBX which both have more than 500 concurrent calls and 3000 registrations extensions. I am able to coding with C/C++, Perl, PHP, shell, sql and other programming language. And I have done sucessfully about 30 jobs about voip system on upwork . I am steady, honest and hard-working. I am fond of innovation and pursuiting new techonologies.

$27.78 /hr
2,954 hours

Bohdan Borkovych

Bohdan Borkovych

Senior MSSQL, MySQL, PHP, C#, Developer

Ukraine - Tests: 6 - Portfolio: 14

Hello to all who look on my profile. I'm deeply understand MSSQL and MySQL servers, SQL language -- it's my strongest skill. My second strongest skill and favorite it's PHP. I love to develop interesting projects. I know few frameworks (CodeIgniter, Yii), and I very good understand OOP paradigm, MVC and programming design paterns. My PHP test score -- 4.65. Also I have very deep knowledge of C# and With this I worked very much time. About me: More then 10 years I worked on the big bank. I was senior programmer, and create all bussiness logic of Bank. Also I've developed much frontend for manage bank logic. It's very complicated system, which use thousands of people. Now I decided to go my own way and find some new interesting projects, learn newest technologies and grow up as specialist. I'm very responsible and honest. I guaranty you best results from cooperate with me

$28.00 /hr
1,656 hours

Rajneesh Rana

Rajneesh Rana Agency Contractor

Expert Web Developer, Server Architect/Administrator

India - Tests: 26 - Portfolio: 7

A skilled and technically proficient web developer with 5 years of hands-on experience in the design, development, implementation, and maintenance of web-based, desktop, mobile, and client-server web applications, web sites.  Cutting edge capability in web and software development with in depth knowledge about all stages of design, coding, web applications and testing for multi-user systems Extensive experience in server management and working in demanding hi-tech environments Hands on experience in interaction design, user experience modeling, and focus groups Experienced in positioning web based solutions for e-Commerce business problems Skilled in assessing client needs and requirements Work well with individuals at all levels Areas of Expertise: Web development languages and platforms:- * PHP , CakePHP, Wordpress, Laravel, jQuery, MVC Frameworks, Custom CMS Server Administration – Mangement * Microsoft Windows Servers , Linux servers - CentOS , Ubuntu , Debian * Apache, nginx, IIS Web Servers, Hosting Control Panels * DNS servers , FTP Servers

Groups: Bluehost Developers and Designers

$16.67 /hr
5,733 hours

Alex Lysenko

Alex Lysenko Agency Contractor

Linux server support, system administration, DevOps


I am Sales Manager with NIX Solutions Ltd. I represent a great team of system administrators. We have been specializing in the work with Linux, Unix and Windows servers more than 7 years. With NIX Solutions, the IT network and infrastructure of your business will be in strong, reliable hands. We will • Set up and monitor Remote Access (VPN) • Manage your servers (E-mail, Web, Data) • Provide Anti-Virus and Anti-Spam Protection • Manage Webhosting Automation • Provide Security Audit and Consulting for Networks, Servers and Services • Provide 24x7 Technical Support

$25.00 /hr
1,648 hours

Shon M.

Shon M.


Canada - Tests: 1

I'm a DevOps with an interest in all platforms and languages, but specializing in Puppet and PHP. My framework of choice is Symfony2, though I'm comfortable in anything PHP and most Ruby. I manage my own cluster of servers via immutable infrastructure principles, and my home is run like a big web shop. Tons of small convenience projects give me the opportunity to work with many, many different languages and technologies. Some key words for me: PHP, MySQL, Redis, Unix, Linux, DevOps

$44.44 /hr
1,166 hours

William Grzybowski

William Grzybowski

(Web)Development and Unix-like Consultant

Brazil - Tests: 7 - Portfolio: 2

Before I even go to university i started working with Web-development. My first experience was about 6 years ago with pure HTML using frames in Dreamweaver 3. Since then I have worked hard to improve my skills in every way possible, not just as a web-developer but as a general programmer, and now I work essentially with Open Source software like Python(+Django), PHP, Linux/FreeBSD, PostgreSQL, etc.My degree in computer science helped me to understand the basics of a computer from the bits in the processor instructions to multimedia, and thus can be used everywhere to improve the final result of a project.

$33.33 /hr
3,500 hours

Guyen C.

Guyen C. Agency Contractor

Magento, Drupal, wordpress, Joomla & ASP/PHP/RUBY/FLASH/JAVA Developer

Bolivia - Tests: 8

I have 8 years experience developing Joomla/Wordpress and web and desktop applications . I have some projects created with Drupal, Joomla, Wordpress, c#, PHP, java J2EE, C/c++, Ajax JavaScript, CSS3, Ruby, XML. DHTML, WPF, LINQ and more. Try to find more opportunities for development of websites. I consider myself self-taught and always willing to acquire additional skills and training as required. I also have experience with Frameworks Ezpdo, Cake, Symphony.

$15.00 /hr
1,724 hours

Kadda G.

Kadda G.

web2.0 {XHTML/CSS/PHP/Mysql/js} strong skills,Web Scrape expert

Algeria - Tests: 13 - Portfolio: 1

Expert Freelance,web 2.0 programmer and designer, web security expert , with C++ ,DELPHI , JAVA programming skills , web scraping solutions ,LAMP administrator and more...

$16.67 /hr
6,965 hours