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Network Security Upwork freelancers typically receive a client rating of 4.75.

Last updated: October 1, 2015
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Stamatis Kekes

Stamatis Kekes

Senior system administrator and PHP - C - Perl developer

Greece - Tests: 11 - Portfolio: 2

Very skilled Unix system administrator, with lot of experience in Linux ( Centos, Redhat, Fedora, Ubuntu, Debian, Gentoo, Slackware ), Solaris, xBSD ( FreeBSD, OpenBSD), vpn ( openswan - ipsec, openvpn, l2tp, pptp ), clustering ( LInux Virtual Server, Linux HA, vrrp, Solaris Cluster ), cloud computing, load balancing ( f5, haproxy ), VoIP ( asterisk ), databases ( MySQL, PostgreSQL), LDAP, web services ( Apache, Nginx, varnish ), security ( penetration testing, firewall policy design ), control panels ( CPanel, Plesk, Virtualmin, Ensim ), Virtualization ( VMWare Virtual infrastructure - VSphere, amazon EC2 ). As for Developing I am very experienced in C, PHP, Perl, javascript, ajax and many more to list.

98% Job Success
$16.67 /hr
1,843 hours

Taibouni Abdel Hafid

Taibouni Abdel Hafid

Hacking&security , Web programmer,Web Designer , Softwar&script

Germany - Tests: 5 - Portfolio: 3

Over the last 5 years, I have developed a wide range of websites using HTML,CSS, PHP, and MySQL including sites for startup companies and small businesses. My core competency lies in complete end-end management of a new website development project, and I am seeking opportunities to build websites from the ground up for you or your business. Fast Developer : PHP,HTML/xHTML,CSS,MYSQL,JAVASCRIPT,AJAX -PSD to XHTML / HTML5 -Website Development with html5 & css3 for all browser Softwar & script: - PHP scripts - Python scripts (iRC Bots, web bots ,...) - Security and penetration testing - C++ and Qt lib

100% Job Success
$25.00 /hr
22 hours

Sunita R.

Sunita R. Agency Contractor


India - Tests: 1 - Portfolio: 13

I am In Top 10% Upwork Wordpress Developers Test.... 200+ Wordpress Websites, 60+ Wordpress plugins,100+ Custom Wordpress Responsive Design theme My goal is to provide best quality work and meet the deadline of project at any how. I can do any type of work in Wordpress. Ihave designed Many plugins on I have very good experienced with in WordPress, php, HTML5 , CSS3 ,jQuery , javascript , bootstrap 3.0 , adobe photoshop I love what i do and always try to learn from any type of work. i m available for full time.

Associated with: BigFoot T. - Wordpress & Woocommerce Expert

83% Job Success
$15.00 /hr
329 hours

Brian B.

Brian B.

Expert website speed optimizer, Wordpress guru, and Social Media freak

United States - Tests: 4 - Portfolio: 6

I'm obsessed with website optimization and speed. By using tools like Google Page Speed and YSlow (via gtmetrix), I'll not only optimize your site for a better and faster experience, but I'll also help you decrease the amount of bandwidth your site uses. I'm also very proficient in Wordpress and have used that platform to design several websites. Finally, I specialize in removing malware from any website. Whether you have a hacked title and description showing up in Google search or an .htaccess redirect, I'll remove the malware and help you secure your site from future attacks. You can check out my linkedin profile via the following link:

Groups: BoonEx

$22.22 /hr
27 hours

Harish Kumar

Harish Kumar

Value for your money

India - Portfolio: 16

The web designing and online marketing industry is growing highly fierce and competitive. For companies, setting firm grounds and maintaining it rather reaching out for new heights is far more than a challenge for some but not all. This India based online marketing e by Harish Kumar, with its outstanding ability to create world class web deigns, internet marketing and SEO services paved way to be one of the best not just in India but across the globe.

$11.00 /hr
0 hours

David Marcus

David Marcus

Professional Transcriber and Journalist

South Africa - Tests: 11 - Portfolio: 1

Journalist; Transcriber, Subtitles and Travel Planning. US ENGLISH SPELLING: 1st place out of over half a million test takers! 85 Words Per Minute, 100% Accuracy. My Travel Addiction: I have travelled overland by: Public Transport Motorcycle 4x4 Vehicle Through 84 Countries over the last 20 years of my travelling adult life. I have met many interesting people during these adventures and have acquired insight into how the world works. For 2 years I have specialized in transcribing, which I do while travelling, and have acquired knowledge in many different areas, as I prefer to do academic research interviews. All of my clients are extremely satisfied with the quality of my work.

Groups: Microsoft Certified Professionals

100% Job Success
$44.44 /hr
67 hours

mahesh k

mahesh k

Security Expert in Wordpress, joomla & SEM Expert

India - Tests: 2 - Portfolio: 7

Skype: joomla-man Hi My name is mahesh, i work on security, Wordpress, joomla, Bug fixing,SEM with Adwords, CSS customization's from past 8 years.i am expert in making wordpress to load fast, by minimizing css, js files & moving header scripts to footer, i have made many sites to load before 2 seconds.. Google Adwords professional with 7 years of experience in digital marketing. I am currently working with clients ranging from small PPC campaigns to thousands in ad spend. Have experience in managing and optimizing Paid Search & Paid Display. i am honest to provide you Excellent communication & Support for your query's. i am working with wordpress,joomla & other Cms, E commerce platforms on security ( malware removal ).. i work as security analyst for websites.i can easily clean malware & fix issues regarding security.please let me know, how can we solve the issue caused to you, i will deliver the work within given time. i have deal with malware,spam ,black hat spam, redirection, htaccess, php decode,javascript malwares,iframes etc.. I provide quality work at a fair rate. I always find the best solution for my employers.

88% Job Success
$25.00 /hr
68 hours

Sukhmeet Singh

Sukhmeet Singh

Web Designer | Graphic Designer | Ethical Hacker

India - Tests: 7 - Portfolio: 6

5 years of experience in web development Mentioned in Security researcher/Hall of fame lists on: ● ( ) ● ( ) ● ( ) ● ( ) ● I create and customize/edit WordPress plugins and themes using WordPress API. ● I deal with HTML, CSS, JavaScript, jQuery, PHP, Wordpress . ● I convert/slice PSD into HTML/CSS with JavaScript, jQuery, sliders etc. ● I can remove malwares and security vulnerabilities from Wordpress website very quickly along with Google infected site warning removal. ● I design Logos, Business Cards, Ad banners, Website headers at very low cost. ● Security audit for web apps and websites.

$12.00 /hr
4 hours

Marcus Tillmon

Marcus Tillmon Agency Contractor

Web Support Analyst, Tech Support Specialist, and System Adminstator

United States - Tests: 3

I would like a position where I can use my assortment of skills to the benefit a my employer through web support, tech support, or system administration. Through my skills, I devote my cause to customer service, ensuring desired outcomes, and the advancement of technology.

Associated with: oDesk Payroll

$15.00 /hr
4,820 hours