Top Upwork Freelancers

Clear all filters
  1. Christian Walde

    Christian Walde

    Experienced Perl developer with focus on web apps

    Germany - Tests: 5 - Portfolio: 1

    I am a very experienced Perl programmer with a guarantee for quality, speed and honesty. You can see my past experiences in the Resume tab as well as in my work history. As of now I am completely booked out, however I'm always interested in new projects. If you don't need my help immediately and would like to discuss a future assignment, feel free to contact me in order to work out when i can give you more time.

    $100.00 /hr
    1,845 hours
    4.62
  2. Li R.

    Li R.

    php/mysql/mvc/js/HTML/IOS/Android

    China - Tests: 12 - Portfolio: 11

    I devoted myself into the web development industry since 2003 and started to use oDesk from 2009. I scored high percentage on various tests on oDesk. I have developed a wide range of websites/web applications for companies, small business all over the world. I have more than 6 years experience, 2,000+ working hours on oDesk, and have gained very good reputation here. I'm very skilled at following technologies: 1, Core html/php/mysql/js/ajax based web development. 2, PHP MVC frameworks such as: Yii, Zend Framework, Cakephp, CodeIgniter, Laravel. 3, E-Commerce/CMS: Wordpress, Opencart, Magento. 4, Javascript library: Jquery/Jquery UI, YUI, MooTools, Prototype, Backbone.js. 5, Adobe Flex, AIR, Action Script, C++/QT. 6, Database: Mysql, MS Sql, Oracle, MongoDB. 7, Web Server: Linux based, Windows. 8, SCM: SVN, GIT, Mercurial. Please visit my website: www.mcwebwork.com where you can get more information about me. I also have a small team work together with me so can provide web design, front-end development service for you...

    $16.00 /hr
    3,192 hours
    5.00
  3. Leo J.

    Leo J.

    Engineer in Computer Science - Developer - Research

    France - Tests: 15 - Portfolio: 1

    Hello, I am a 27 years old engineer in Computer Science from France. After graduating from the Institut National des Sciences Appliquées of Rennes, I moved over to Sweden to follow a master program on Mobile Systems. Meanwhile, I was also working as a freelance web-developer/project co-leader for a Canadian company. While learning, I participated as a trainee to many professional project and learn to be flexible both in my ways of working in a team and on the technologies to use. Indeed, even so my major programming languages are Java and PHP, I could easily learn C# during my master thesis in Sweden and build up a nice piece of software to work with Sifteo cubes. Software architecture and system design are two of my strong background points, thus I thrive in realizing project from the beginning until the end. My professional experiences involved many non programmer and non computer scientist customers and allowed me to train establishing their needs and to translate them into sprints, backlog and deadlines. I also believe that knowledge in computer science without knowledge of the real world are wasted hence my interests for books, sail, roller-skating, ice hockey as well as environmental questions for instance. Looking forward to working with you.

    Groups: Application Developers Alliance

    $37.00 /hr
    645 hours
    4.96
  4. Aaron Summers

    Aaron Summers

    Linux Cloud Engineer / 14 Years Real World Experience

    United States - Tests: 7 - Portfolio: 2

    Daily engineering and administration of OpenBSD, FreeBSD, Linux and Windows based operating environments. LAN/WAN: Experience identifying a large number of network and host based security problems. Stabilized the bandwidth billing system for accuracy and provided assistance to the web development team. UNX(tm)/Linux/BSD: Designed and built a custom Enterprises Data Ware House utilizing RedHat Enterprise Linux, IBM Information Server, and the Sun N1 toolkit. Back ported the RedHat clustering tools and GFS modules for RedHat Enterprise Linux 4. Customized the operating environment for running the IBM Information Server 8 family of applications, consisting of IBM DB2 V 9.3, IBM WebSphere 6.0, IBM DataStage and IBM QualityStage. Was the single onsite operations point for the HP-UX, Solaris, FreeBSD, MacOS X, and Linux machines. Wrote custom tools for monitoring and metrics. Fluent in the change management process as it relates to Sarbanes Oxley, internal, and external audits. Extensive documentation of custom applications, primarily our custom data warehouse solution. Designed and implemented the company's external web presence using Solaris 10. Utilized zones, the ZFS file system, and hardware RAID on the T2000 platform. Wrote my own tools in Perl, C, and the Bourne shell. Debugged many complex operational problems. Specialties Started running Linux around 1993, kernel was 0.99 Moved onto SunOS and Open/FreeBSD. Since have worked with HP-UX and SCO extensively. Currently work with RHEL, AMI Linux, CentOS, OpenBSD, EC2, Parallels, and Rackspace.

    $30.00 /hr
    5,879 hours
    4.97
  5. Zlatko Derkoski

    Zlatko Derkoski

    html,php,javascript,wordpress,codeigniter,flash developer

    Macedonia - Tests: 6

    Over the last 5 years, I have developed a wide range of websites using HTML/CSS/JAVASCRIPT/JQUERY, DHTML, 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. I also have great experience in the following areas: SQL, Ajax, OOP, and software design and testing, WORDPRESS, CODEIGNITER frameworks.

    $22.22 /hr
    797 hours
    4.99
  6. Sedat Cankaya

    Sedat Cankaya

    Web Spider, Scraper and Data Miner

    Turkey - Tests: 1 - Portfolio: 3

    Hello, Web scraping and data collection is my main profession. Im developing my own custom program specific to each website im going to scrape. Im not using a prebuilt software so i can adapt my program to any format easily. There is no exceptional case, i can scrape any website using any technology. Waiting for your command...

    $11.11 /hr
    3,834 hours
    4.87
  7. Abdul Samad

    Abdul Samad

    Expert VB,ASP,ASP.NET,MSSQL,PHP,MySQL,HTML,CSS,AJAX,JQurey,WebServices

    Pakistan - Tests: 9 - Portfolio: 4

    Over the last 9+ years! I have developed many websites using ASP Classic, ASP.NET, PHP, MSAccess, MS SQL Server, MySQL, HTML, CSS, AJAX, XML, JavaScript, JASON, JQurey, JQureyUI, JQureyMobile and KendoUI. Most of my work related to HTML, CSS, ASP Classic and MySQL for personal, Small and Mid scale businesses use. I also have developed & used webservices for integration with third parties several times. I have developed many softwares using VB6, VB.NET, ADO.NET, MS Acees, MS SQL, MySQL, COM, DCOM, ADO, data mining, data extraction for single PC and distributed network for personal, Small and Mid size businesses. Most of my work involded in VB/VB.NET. I have integrated softwares & websites to third parties using API and WebService like .... Google Base, Google Map, Ford, OpenID, PayPal, Authorize.NET, MoneyBooker etc ... I have used my Mathematical & Statistical skills many times to invent solutions to problems. I have created and/or used web services, API and RESTful web service. I also have Lead Teams to develop website/software solutions for all size businesses involving all above tools/technologies for business processes like Inventory Control, Point of Sale, Purchase Management, Supply chain Management, Accounts, Document Management, Audit etc. Most Complex Project! I have developed the most complex software for Power House Circuit Designing and Simulation upto now for Singapure Base Company. It is complete tool for designing, improving and maintaing electrical circuit of a power house which involved complex mathematical calculations and statistical estimates. Largest Project I have successfully managed as Team Lead, the web project for US based Real Estate Agency with team of 9 developers. It have 25+ huge module i.e. complete set of tools required for real estate agents, brookers and companies. CMS is one of the module which let user to manage user's website accross all enteries in property & pages module etc etc .... It's 1st Phase completed in 3 years. Graphics Design I have worked in Flash for creating small animations. I have worked in Adobe Photoshop for creating a few templates for website I have converted PSD into HTML every time i have developed website I have completed many projects, i cannot list down all. here are URLs of few ... http://mrecgo.net/ (Responsive Design, PHP, MySQL, AJAX, Javascript) https://findherbs.net/ (Responsive Design, PHP, MySQL, AJAX, Jquery, Javascript,HTML, CSS) http://www.thecostumeroom.com.au/ (PHP, MySQL, Jquery, Javascript,HTML, CSS) http://pelltechnology.net/ (ASP, MySQL, AJAX, Javascript,HTML, CSS) http://www.reactionenergy.com/ (ASP, AJAX, Javascript,HTML, CSS) http://find.pelltechnology.com/ (ASP, MySQL,, HTML ) http://www.laptopteks.com/parts/ (ASP, MySQL, AJAX, Jquery, Javascript,HTML, CSS) http://www.pad.org.pk/ (ASP, HTML, CSS, Javascript) I have strong leadership skills to manage & lead team(s) to suscessful development. I am excellent in - Complete end-end management of development projects (website, software, app). - Developement of software/website/app from start to end for personal or business use. - Analysis, Design, Development, Deployment and Maintenance. - Innovating algorithems and inventing solutions for personal or business use. - Development related to Mathematics, Statistics, Simulations and Complex Algorithm. - experience of maintaining websites with ZERO down time. I like to face technical challenges and feel pleasure to resolve :)

    Groups: Application Developers Alliance

    $34.99 /hr
    3,406 hours
    4.61
  8. Debopam Basu

    Debopam Basu

    Microsoft certified sharepoint developer

    India - Tests: 2

    Over the last 7 years, I have developed a wide range of websites/portals using Sharepoint , asp.net, MVC, c#, sql server for big clients like pfizer, wellpoint, Hyatt and small startups like webuddys.com. My core competency lies in complete end-end management of a new website development project, SP 2013 apps and I am seeking opportunities to build websites from the ground up for you or your business. I am a microsoft certified developer for sharepoint 2010. I have very good exposure in Sharepoint 2013 apps and website development. I also have good experience in the following areas: HTML5, CSS, PHP, Javascipt,Jquery.

    Groups: Microsoft Certified Professionals

    $22.22 /hr
    110 hours
    4.92
  9. Howard Selfe

    Howard Selfe

    Analyst Programmer, Project Manager

    South Africa - Tests: 5 - Portfolio: 5

    I have a BSc (Honours) degree, with majors in Computer Science and Applied Mathematics. Up until recently I owned an IT solutions company specializing in online application development. My core skill-set includes ASP.net, VB.Net, C#, PHP, SQL Server, mySQL, Java, Javascript, VBA (Excel and Access), VBscript, HTML and CSS. Additional skills include, amongst others, SVN, OO, MVC, Wordpress and Silverstripe. I have excellent people skills, a proven track record in effective project management, the ability to work in an unstructured environment and be self motivated, good relationship building skills and excellent writing skills. Furthermore, I have more than 15 years of experience in real world web and application development. I believe in ethical business practice, and my commitment is to provide online applications and IT business solutions of the highest possible quality.

    Groups: Crossrider

    $33.33 /hr
    4,668 hours
    5.00
  10. Brad H.

    Brad H.

    Information security expert

    United States - Tests: 2

    The most trusted security analyst on Elance! I offer world-class incident response, malware cleanup, and other assistance related to hacking / malware attacks. --- My expertise lies mainly in incident response and in reverse engineering / malware analysis. This means I can go in nearly blind and still quickly determine the source of an intrusion and how to fix the vulnerability. I can analyze a malicious artifact to determine its purpose. I can also apply my strategic experience to assess future threats. This is my normal work cycle for incident response clients: - get access information and begin investigating the server - perform triage / rapid removal of malicious and compromised files - keep track of all actions performed, and conduct live chat to inform clients of my progress (timezone permitting) - work with clients to keep monitoring for future hack attempts for the coming weeks and if possible, find/patch the vulnerability that allows the hack I will not accept payment if I can't finish a job to a client's satisfaction. My passion is for fighting malware and cyber criminals, not for taking money for quick and temporary solutions to a problem. I have successfully eradicated malware and secured the following platforms: - OsCommerce - Cre Loaded - CS-Cart - PrestaShop - Magento - Wordpress - Joomla - custom content management systems - PHPBB - vBulletin

    $25.00 /hr
    11 hours
    5.00