Network & System Administrators

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  1. Esteban Hernandez

    Esteban Hernandez

    Esteban Hernandez

    Costa Rica - Last active: 10/09/2014 - Tests: 5

    General Overview Linux Administrator with 5 years experience I am seasoned enough to know to acknowledge when I do not know something, or do not have the answer. There is never “one way” to do something, and no matter how a problem is solved, there is always a better solution. Enjoy challenges and learning. I will not charge for learning general technologies that have application beyond a contracted project. I believe in the power of the web. I believe in the power of cloud computing, and SaaS. Willing to do oncall 24x7 immediate availability. Experience Cloud Services: Amazon Web Services EC2 Elastic IP Console Manager I have recently completed a number of production server deployments to Amazon Web Service (AWS). Each migration included building a new AMI as well as exports/imports of production data. SVN migration to AWS (centOS) dotProject migration to AWS (centOS) Bugzilla migration to AWS Linux (Centos, Ubuntu, Solaris, Suse, Red Hat) Worked for software development company for 4 years maintaining and deploying a wide variety of systems and applications including: LAMP, Bind DNS, PHP, apache, mysql, LDAP, Nagios, Cacti, fortigate firewalls, Joomla, wordpress, Plesk, Jboss4, Tomcat, Oracle, PXE Installs, Vmware, Virtual Box, red hat spacewalk, Bacula, Oracle and Mysql migrations, shell scripting and general sys admin work maintaining and monitoring the data center with over a 100 servers. HP (Technical Account Manager): 1 year experience handling Level 3 linux cases with US based customers, main point of contact between HP and the clients communicating via Email, phone or video chat, helping them resolve the cases from beginning to end engaging engineers from 3rd party software if required and keeping constant communication between the parties.

    $22.22 /hr
    71 hours
  2. Carlos C.

    Carlos C.

    J2EE/PHP5/SQL Developer. Linux SysAdmin. Brainbench certified

    Spain - Last active: 11/19/2014 - Tests: 6

    More than 7 years of experience coding in PHP using many SQL databases (MySQL/PostgreSQL/MSSQL). I have worked in many projects as a project leader. I feel very confortable in managing my work time to complete the schedule. Experience with Zend Framework; MVC and Singleton patterns. Expert in use of XML technologies, APIs, AJAX and coding using OO (Objects). Skills using design software (Fireworks, Photoshop, Gimp). GNU/Linux system's administrator for more than 6 years.

    $17.78 /hr
    26 hours
  3. Oleg Natalushko

    Oleg Natalushko

    Drupal ecommerce, highload, FB app, server administration

    Ukraine - Last active: 3 months ago

    Hi, I'm Oleg. I have over 4+ years of experience with Drupal and Web-Development in general. Skills: Drupal Core ✔ Experience with Drupal 6\7\8 . ✔ Implementation of Module Hooks, Theme Hooks, Element Rendering. ✔ Views, Webform, Rules, Context, Panels, Features, Devel, Media. ✔ Drupal Commerce. ✔ Core API, Entity API. Drupal Theming ✔ Adaptive & Responsive Drupal Theme Development. ✔ Major experience with HTML/CSS/JS development for Drupal. ✔ Theme development from scratch. Front-End Development ✔ HTML/CSS/JS Static or Mobile development. ✔ PSD to HTML/XHTML. ✔ Experience working with other people's code. ✔ Static HTML to Responsive/Adaptive HTML. ✔ jQuery plugin implementation. Highload Drupal sites administration and development. ✔ Drupal db performance tuning. ✔ Code performance and securety tuning. ✔ Fixing hosting\server performance problems. Facebook web app development based on Drupal. My profile:

    $20.00 /hr
    19 hours
  4. Mihail K.

    Mihail K.

    UNIX/Linux administrator

    Belarus - Last active: 2 months ago - Tests: 5

    I love UNIX! I love one-line shell scripts! I work with Debian, RedHat, HP-UX. Little with OpenSolaris and FreeBSD. I have experience in creating and supporting monitoring systems based on Zabbix and Nagios (several tens of servers with different OS). I am well familiar with network protocols and tools for testing and troubleshooting (wireshark, tcpdump, nmap, traceroute, etc.). I have experience in creating secure VPN tunnels based on OpenVPN, IPSec, L2TP/IPSec, GRE and PPTP. I was installing and configuring lighttpd, apache httpd, nginx, exim4, dovecot, samba, OpenLDAP, etc. I have experience with creating mail servers used in hosting company for many customers. I was working with virtualization Xen, KVM, VMware. Have experience with cloud services like Amazon EC2. I have experience in installing and configuring Oracle 10g, 11g, PostgreSQL, MySQL.

    $16.67 /hr
    88 hours
  5. Jeffrey Hu

    Jeffrey Hu

    Python | Django | Web Scraper | iOS | AWS

    China - Last active: 5 months ago - Tests: 2 - Portfolio: 1

    I'm a backend developer but also have strong front-end skills. My goal is to be a full-stack developer. I like to make applications that are simple, but powerful. I have more than 12 years work experience on IT , software, web area. I worked in Huawei and Cisco as a senior developer and a project manager before I became a freelancer. And now I have a small but great team. We build web, restful api, ios and android apps based on html5. We have built several projects from scratch and made them to get the investment. I used to worked in New York City to help a startup company to build the backend service.

    $44.44 /hr
    31 hours
  6. Kiefer Hagin

    Kiefer Hagin

    C# / HTML5 / JavaScript / Node.js / iOS / Android / Java / ASP.NET Dev

    United States - Last active: 05/01/2014 - Tests: 1 - Portfolio: 2

    My areas of expertise include mobile, web, and application development. I'm all about client relations and clean, maintainable code. Here's a quick list of the areas I'm most skilled in: * HTML5, CSS3, JavaScript * Node.js * iOS / Objective C * Android / Java * Phonegap, Xamarin * C# / ASP.NET I'm also versed in the following areas: * Python * MVC * Unity, XNA, MelonJS * Adobe Photoshop

    $40.00 /hr
    563 hours
  7. Razzaqul K.

    Razzaqul K.


    Bangladesh - Last active: 01/30/2012 - Tests: 9

    I am an enthusiastic and dedicated professional with extensive experience across areas of Telecom network planning (Transmission). I am a proactive individual with a logical approach to the assigned tasks. I work to make things easy and I am respectful to different views. I am clear, to-the-point and focused in my behaviors and actions. I am able to work well on my own initiative and can demonstrate the high levels of motivation required to meet the tightest of deadlines. Even under significant pressure, I possess a strong ability to perform effectively and to inspire the team. I drive the challenges. I am now looking to work under an erudite GURU and then do some good works my self which I am confident of being capable. Then I will be a tech Entrepreneur. Simultaneously I will continue research activity.

    $10.00 /hr
    18 hours
  8. Devon Hubner

    Devon Hubner

    Experienced Technical Architect

    United States - Last active: 09/20/2014 - Tests: 3 - Portfolio: 3

    For the last 10 years I have been developing websites using HTML, PHP, and MySQL including content management platforms like Drupal, Joomla!, and WordPress. The websites and web applications I develop have been hosted in high-availability virtualized environments utilizing Enterprise Linux with Apache Web Server or NGinx. My passions are for Open Source technologies, and my core competencies include Enterprise Linux, Networking, Web development with PHP and Python, MySQL and MonogDB databases, Wikis, etc. If you have an open technology, I can help you.

    $33.33 /hr
    18 hours
  9. Haisam S.

    Haisam S.


    Pakistan - Last active: 03/01/2013 - Tests: 4

    The multidisciplinary nature of Mechatronics & control engineering coupled with my distinctive ability of devising unique solution to the day to day problems actually accounts for the so far illustrated delivering of creative engineering solutions. Engineering Graduate together with past proven track record of measuring and controlling has been working for me to plan, develop, design, and maintain E&I; systems for one or more as required by the Engineering Department and/or contractual obligations of our clients. Hand on experience in programming/ development of DCS, PLC's, SCADA systems on industrial scale enable me to sharpen my skill on real time basis. Programming of microcontrollers in C, C++ , Using MATLAB, PCB designing, CIrcuit analysis, Engineering design & codes review, Projects coding are e the traits which an enginner needs in order to survive in this harsh world & Iam doing it quite fine. In addition to that the commitment to constant learning has been really supporting to me in my sincere endeavors of going with the evolving time thereby polishing my technical knowhow very frequently. Familiarity and sticking to ISO, IEC, JIS standards is thus illustrative of the aforementioned statement. The very same adherence also indicates my excellent ability to comprehend technical regulatory guidelines. Experience & Qualifications Having four year of experience in process control & automation industries. Completed various engineering projects which includes but not limited to the followings 1- Design of automation system for industries, 2-System architecture development 3- development of I/O loading philosophy 4- Logic Development & modification as per design requirement, 5- Development & modification of HMI's, network systems & simulation environment. 7- Design of scada systme. 8- Robotic control development. 9- Electrical drawings & circuit enalysis. 10- Project Management Currently I am working on wind power project with multinational firms. Project is in procurement phases . My team is responsible for the design of electrical distribution design analysis. Certified Engineer in instrumentation & control. Certified control engineer from multinational company. PMP certified. Active member of open source club Lahore.

    $16.67 /hr
    55 hours
  10. Konstantin Cherenkov

    Konstantin Cherenkov

    Russian Programmer

    Russia - Last active: 11/14/2014 - Tests: 6 - Portfolio: 7

    Expert in .NET (C#, MVC, WPF), C++, PHP, JQuery. Good knowledge of WordPress, Joomla, Prestashop. I am seeking opportunities to build websites from the ground up for you or your business. Good C++ and C#(.NET) programmer. I know OOP, principles of designing of the software, programming patterns. I can administer a LAMP server. Have Worked with Mysql, MS-SQL, SQlite. Good knowledge of C++ and C#. Understanding of OOP, design patterns, best practices (stackoverflow is cool :)), strong sysadmin and unix skills, experience with GUI programming. I have an enthusiasm for learning something new. My interests are Linux, new technologies, machine learning, cloud computing, parallel programming, computer vision. Attend seminars, developer meetings, e.g. Microsoft User Group, C++ User Group, Club of Open Technologies. Responsibility and attentiveness are the main traits of my character. Specialization and skils: Languages: .NET Framework (C#), C++, PHP, Javascript, SQL, PHP, HTML, CSS Technologies: Qt, OpenCV, PCL, VTK, OpenMP, MPI, Task Parallel Library, WPF, ASP .NET MVC, Entity Framework, NUnit, Ninject, Moq, JQuery Databases: MySQL, MS SQL, SQLite, SQL CE, Redis Methodologies: Agile (Scrum), TDD, UML, SOLID, Design Patterns, Parallel Progamming, Continuous Integration, Code Contracts Version Control Systems: Git, SVN, TFS IDE: Qt Creator, Visual Studio, Sublime, CMake for managing the build process OS: Linux (Ubuntu, Arch), Windows, FreeBSD

    $33.33 /hr
    32 hours