IT & Networking Administrators

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  1. Ilya I.

    Ilya I.

    Expert Linux administrator, Devops

    Thailand - Last active: 1 day ago - Tests: 7

    My goal is customer satisfaction. If you need to get something done - leave it to me. OS: Linux - expert, FreeBSD and Windows Server - proficient Cloud services: AWS, Rackspace SCM: Puppet, Ansible Web servers: Apache, Nginx, Tomcat Database servers: Mysql, Postgresql Atlassian: Jira, Confluence, Crowd, etc - the whole suite Monitoring: Nagios, Groundwork, Zabbix, Monit, Munin, Cacti Virtualization: Openvz, Vmware ESXi/server, Proxmox Mail servers: Zimbra, Exim, Sendmail, Dovecot Backups: Bacula, duplicity, rsnapshot High availability: Corosync/Pacemaker, DRBD Other: standard network services (DNS, DHCP, LDAP, Samba, SVN/Git, http proxy, jabber, VPN, backups, monitoring etc), firewalls and routers (iptables, iproute, VLAN, bridging, bonding). Performance optimization: Magento, Wordpress, etc.

    $95.00 /hr
    2,529 hours
    4.84
  2. Bidyut Das

    Bidyut Das

    Desktop and Mobile Application Programmer

    India - Last active: 2 days ago - Tests: 3 - Portfolio: 10

    I am trainer turned developer with 4+ years experience in software development and 3 years experience in teaching in high school computer and mathematics subject. I worked with almost all software farms in my city. I have experienced different programming languages such as VB.net, C#.net, ASP.net, Java,JSP, php,etc. 60% of my projects are using Vb.net . I also have core knowledge of SQL Server, MySQL . I have also worked with MS Access DB , Oracle, PGSql. I love to accept challenges and complete it. Time is a great factor for me. I want to develop websites, application, database queries that challenges me.

    Groups: Application Developers Alliance

    $30.00 /hr
    1,145 hours
    4.96
  3. Dorris joy A.

    Dorris joy A.

    Certified PHP/MySQL/HTML5/CSS3/JS/SVG/Canvas dev

    Philippines - Last active: 3 days ago - Tests: 5

    With almost 10 years evolving in the IT world, i've gained sufficient knowledge and now very competent to develop applications and websites for people around the globe. I've done websites with CMS, online booking and reservations, CRM systems, streaming video playlist, mobile services in the Philippines (Smart, Globe, Sun). These projects were developed mainly with PHP and MySQL. Also, Javascript plugins and framewroks are also injected to provide cool user interaction. Aside from being a programmer, Im also inclined to art and designs, so Im very particular with the look and feel of the product, while taking in mind the clients' specifications.

    $35.00 /hr
    1,390 hours
    4.77
  4. Aaron Summers

    Aaron Summers

    Linux Cloud Engineer / 14 Years Real World Experience

    United States - Last active: 1 day ago - 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
    5,514 hours
    4.97
  5. Tim Lytle

    Tim Lytle

    PHP Web Application Developer: Focused on Zend Framework and APIs

    United States - Last active: 1 day ago - Tests: 4

    I've been in the web development field since 2002, when I started as a programmer/admin for a web hosting company. I've worked on a variety of web applications (generally php/MySQL based) ranging from ecommerce to in-house CMS to data mining/feed processing to integrating APIs and web services. I've worked with a number of PHP frameworks (Zend, CodeIgniter, CakePHP), and generally like working with a MVC design pattern. I've developed web applications from the ground up, as well as modified and added functionality to existing custom in-house systems, opensource applications, and commercial applications. I've worked with various APIs, including: Twilio, Twitter, Foursquare, Amazon, PayPal, Drop.io, Sunlight Labs, EmailYak, and others. I've written wrappers for APIs, as well as written APIs for outside integration into applications I've written. I am comfortable working with other developers and designers. In addition I've been asked to do code review and troubleshooting for projects where I had no active role. My profile on StackOverflow (http://stackoverflow.com/users/45531/tim-lytle) is a good sample of my ability to communicate the details of a development problem/solution. I'm also a Zend Certified Engineer (http://www.zend.com/store/education/certification/yellow-pages.php#show-ClientCandidateID=ZEND011439) with experience administering apache/mysql/php/etc on Linux (and a bit on Windows). Most of my oDesk clients are buyers who need high-level, conceptual requests to be understood and implemented, and the projects are ongoing long-term relationships.

    Groups: Outright.com, Phone.com...

    $175.00 /hr
    3,936 hours
    4.92
  6. Petr B.

    Petr B.

    Senior Developer, PM

    Russia - Last active: 1 day ago - Tests: 5 - Portfolio: 1

    I have strong background in UNIX/Linux software development, Master's Degree in Computer Science. I worked on Enterprise high-load distributed hosting automation systems as a Team Leader (3.5 years in SWsoft, Inc., now called Parallels). For the last 6 years I'm running my own small software development business in Russia with primary focus on Python/Django apps. Not pure Web but often involving integration with hardware (Proximity Cards, Sensor Screens) or external systems like Payment Processing, SMS Gateways, GABRIEL (Airline Reservation System), etc. I can take an idea and turn it into a working business, through all the intermediate stages. Also I have experience of investing my own funds in my projects, so I feel the difference between "perfect code" in a month and "good enough" code that increases the revenue right now. Nevertheless, my code is very good: no copy-paste, always written with performance, flexibility and security in mind, etc. On oDesk I'm looking for (and actually find :) interesting projects with a sight on long-term fruitful cooperation. I'm also open to smaller activities (e.g., consulting) where my knowledge can be helpful.

    Groups: Coding Champs

    $40.00 /hr
    1,521 hours
    5.00
  7. Sandor M.

    Sandor M.

    System/Network administrator

    Romania - Last active: 1 day ago - Tests: 7

    Over 10 years experience as Linux administrator . Configured and maintained hundreds of servers having different tasks : web server (Apache/Nginx+php/ruby/perl), mail server (with AV and spamassassin), file server, mysql/postgresql, dns, IM server, VOIP, firewall/VPN. As a network administrator in a small WISP i built my skills up in wireless, routing/BGP, routers/swithes/firewalls, network monitoring/troubleshooting. I write my own scripts (shell/Perl) . Also i have limited experience in programming, mostly Php and C. Serverfault profile : http://serverfault.com/users/164490/sandor-marton

    Groups: Upwork Verified Web Developers

    $35.00 /hr
    2,962 hours
    4.97
  8. Ismet Dumlupinar

    Ismet Dumlupinar

    MCITP (System Administration), MCT, MCSA, MCSD: Web Applications

    Turkey - Last active: 12 days ago - Tests: 14 - Portfolio: 13

    Experienced System Specialist, MCSA/MCITP/MCSD. In-depth knowledge of business operations and Information Tecnology Systems, project management, enterprise system integrations and information security with over eight years with hands on experience as an Enterprise Administrator and Network Manager in Windows Server 2003 & Windows Server 2008 environments. Experience in hardware and software virtualization using VMware and Hyper-V and App-V. Practiced understanding Active Directory, Group Policies, NPS, NAP, Exchange, SQL Server, Dynamics CRM, ERP, PKI and DFS. Experience as a corporate Microsoft/Certification trainer at one of gold certified partners of Microsoft. Proficent in Server 2012 and 2008 (inc.Server Core edition), Hyper-V, switches and many other technologies. I have been highly involved in server virtualization for seven years and am proficient in both VMware and Microsoft Hyper-V. I am also providing consulting services for web applications. I am a member of DotNetNuke Corp Internationalization Team and I'm working to expand product features to fully support Turkish localization. I am always looking for new opportunities to develop my skills. Check my Microsoft Profile below: https://www.mcpvirtualbusinesscard.com/VBCServer/idumlupinar/profile

    Groups: Microsoft Certified Professionals

    $75.00 /hr
    2,230 hours
    4.86
  9. Rahul H.

    Rahul H.

    Project Manager / IT Consultant & Generalist

    India - Last active: 2 days ago - Tests: 34 - Portfolio: 13

    Seasoned IT Professional with extensive experience in Software Development, Database Technology, Project Management & Business Analysis. An innate ability to always remain on top of the situation has helped me to establish a track record where I have not missed out on a single deliverable. Core Technology Areas - Data Warehousing & Business Intelligence Tools - SSIS, SSRS, SSAS, Crystal Reports - Development of Triggers, Stored Procedures using T-SOL in MSSQL Server - Designing databases - Conceptual & Physical schema - .Net framework 3.5 & 4 - Asp.net, Web Worms, C#, Ajax, Web Services, Win Forms - ORM- LINQ, Entity Framework. nHibernate - Use Cases, UML Artifacts, MS-Visio, Wireframing tools - MS-Access, VBA Abilities - Orchestrating total solutions from requirement analysis to testing and implementation. - Proven experience in project management, risk analysis & successfully leading teams - Interfacing with clients - both pre & post sales Strengths - Ability to think out of the box within defined and accepted methods of execution and delivery

    $35.00 /hr
    4,474 hours
    4.96
  10. Andrey Semenischev

    Andrey Semenischev

    Expert in PHP coding and MySQL optimisation

    Russia - Last active: 7 days ago - Tests: 14

    I'm WEB programmer. I have more than 12 years expierence in site-creation field. I work with PHP, Smarty, MySQL, JS, HTML, Linux adminstration (httpd, mysqld, iptables etc.). I have developed and changed a wide range of websites and backend systems. I also have a rich experience in AJAX, OOP, software testing. Feel free to work.

    Groups: Upwork Verified Web Developers

    $38.89 /hr
    1,530 hours
    5.00