Top Upwork Freelancers

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  1. Lukas Kocourek

    Lukas Kocourek

    senior IT professional

    Czech Republic - Last active: 12/04/2014 - Tests: 4 - Portfolio: 1

    major skills: ‣ network TCP/IP (IPv4, IPv6), routing, firewall, VPN, monitoring systems ‣ VMware (architecture, management & deployment) ‣ UNIX operating systems (Debian, Ubuntu, RHEL, CentOS, OS X) ‣ Apache, Nginx, Tomcat, Icecast, BIND, Zabbix, Nagios ‣ SQL technology (MySQL, MS SQL) ‣ clustering, HA ‣ programming languages PHP, JavaScript (Node.js), Perl, BASH ‣ HTML, CSS, Adobe Photoshop ‣ VCS systems (GIT, CVS) ‣ SAN EMC CX/VNX class management

    $25.00 /hr
    0 hours
    5.00
  2. Razvan Muscalu

    Razvan Muscalu

    Information Technology and Security Expert

    Romania - Last active: 4 months ago - Tests: 8

    I enjoy investigating a multitude of subjects, for example when I was 14 I started to learn PHP, three weeks after I was programming an internal chat system for a casino in Holland. Afterwards, small web-related projects followed; when I was 16-17 I was hired as a company administrator in the fields of IT Security, Computers and Network administration/installation, CCTV surveillance, PBX administration and Access Control. At 18, I've started to research the field of reverse software engineering and subsequently developed web-crawlers/spiders as well as playing around with various programming languages. Soon after, I have found interest in the field of Ethical Hacking and developed applications regarding protocols such as POP3, SMTP, FTP and I have also conducted research on how the aforementioned protocols can be correlated in order to subdue RDP-enabled servers. To cut the story short, I have a diverse interest which spans a multitude of IT related fields.

    $13.00 /hr
    0 hours
    5.00
  3. Kirill Kirichenko

    Kirill Kirichenko

    Javascript/PHP Web Developer

    Russia - Last active: 4 months ago - Tests: 4 - Portfolio: 3

    Last six years I performed different tasks in the field of web development, such as programming web-site backend on PHP and Perl languages, drawing templates and making page layouts, adding interactive elements, input handlers and AJAX-driven features using JavaScript (jQuery, Angular etc). Also I have the server administration skills, so I can setup and manage UNIX-servers, system software and solve problems. I'm most interested in web-service development projects, or working part time in a team. To prove my skills and get more information I always welcome small test projects before starting main work.

    $20.00 /hr
    3 hours
    4.19
  4. Kirill Vlasov

    Kirill Vlasov

    Java Developer

    Russia - Last active: 2 months ago - Tests: 6

    I have developed various server software for more than 10 years. I have mainly worked with: - Java 7/8 - Spring framework and MVC - Hibernate ORM - PostgreSQL as relation database I offer not only development but also analyzing requirements and development, providing architectural engineering, QA and software testing automatisation.

    $18.89 /hr
    0 hours
    5.00
  5. Ahmed Zaalan

    Ahmed Zaalan

    Software Developer

    Palestinian Territories - Last active: 6 months ago - Tests: 3 - Portfolio: 2

    I have been doing software development for over 5 years, including web development for the last 2 years. I have worked with various technologies and programming languages including ASP.NET, PHP, Visual Basic, HTML, JavaScript, CSS, MySQL, MS SQL, jQuery, AJAX. I Also I have experience in desktop applications Using .Net Framework and Java. My goal is to continue doing software development and learn new languages and techniques along the way.

    $11.11 /hr
    3 hours
    5.00
  6. Muhammad Iftkhar

    Muhammad Iftkhar Agency Contractor

    Mobile and Web Application Developer

    Pakistan - Last active: 4 months ago - Tests: 1

    I am ColdFusion certified developer and developing in CF since it's version 4.5. I've been working with MSSQL and MySQL almost as long. I have hands on experience to code CF wrappers for different APIs and write robust, modular and clean code. I expert in Browser display issues. I have not yet to meet one that I couldn't fix. I can connect your website to any payment gateway, set up your server to do almost anything, and also do image galleries/portfolios. I also have experience in following areas: JavaScript, Jquery, Jquery Mobile, Ajax and CSS. Look forward to hear from you.

    Associated with: creationnext

    $20.00 /hr
    49 hours
    5.00
  7. Orlando Adeyemi

    Orlando Adeyemi Agency Contractor

    back-end developer

    Malaysia - Last active: 3 months ago - Tests: 1 - Portfolio: 1

    I'm a computer engineer with love for back-end systems.I believe in TDD, I love to write OOP code with unit-tests to make the resultant system modular and easily maintainable. I have experience with writing REST APIs and MVC. If you are looking for someone who is excellent at communicaiton and pays attention to detail; hire me.

    Associated with: Creative Minds

    $20.00 /hr
    143 hours
    5.00
  8. Stepan Birukov

    Stepan Birukov

    Linux system administrator with experience in networking

    Ukraine - Last active: 14 days ago - Tests: 5

    Since 2013, I have been working as Network engineer and Unix system administrator for ISP. I have experience in support business-critical applications and hardware, configuration of network equipment and Unix-based servers, bottlenecks search in high-load Unix systems.

    $15.00 /hr
    0 hours
    4.68