IT & Networking Administrators

Clear all filters
  1. Roy jonathan V.

    Roy jonathan V.

    IT System Administrator

    Philippines - Last active: 6 hours ago - Tests: 11

    - Windows XP / Vista / 7 / 8 - Windows SBS 2003 and 2008 , Windows Server Standard 2003 , 2008 , 2012 - Mac OSX Server - Sharepoint - Office 365 - Zendesk, Capsule CRM, HelpSpot, Dellserv, Kayako, Spiceworks - Microsoft Exchange server and Microsoft Outlook - Domain Hosting / Email Hosting - Malware/Virus Expert - Basic to Advanced Networking - Computer Remote Repairs

    $11.11 /hr
    14,154 hours
    5.00
  2. Vladimir Pavlov

    Vladimir Pavlov

    Expert Web Developer - PHP/MySQL/AJAX/CodeIgniter/Jquery

    Ukraine - Last active: 1 day ago - Tests: 1 - Portfolio: 2

    I'm experienced PHP Developer (8+ years) in IT industry. I'm looking for opportunities to work with possible clients for challenging projects using PHP/Mysql, PHP OOP programming, AngularJS, Ajax, RESTful API Implementation, Data Visualization, jQuery etc. I know it's frustrating to work with flakes, frauds and poor communicators; that's why I'm dedicated to reliability, clear communication and professionalism. I hope you to understand that your project is important to me and deserves my attention and dedication. I have powerful skills in PHP, MySQL, AJAX, javascript. Known frameworks php: Codeigniter, Kohana, Symfony2 Known frameworks js: Angular.js I create and upgrade corporate billing system. Development softwares for SetTopBoxes. Creating Samsung SmartTV apps. I have beginner knowledge on android sdk. Knowledges on creating multithreading php scripts knowledges on node.js. Development standalone service on node.js for contol multicast channels. Mysql database administration and etc. Thanks, for your attention!

    $15.00 /hr
    14 hours
    5.00
  3. Sergey Golovchenko

    Sergey Golovchenko

    DevOps/System/network administrator

    Ukraine - Last active: 1 day ago - Tests: 4

    My goal is providing only hight quality service. If you have any IT task - ask me, and I'll provide complex solution. Filed of my expierence covers, but not limited to: OS: varios Linux (Ubuntu/Debian/CentOS and other), FreeBSD SCM: Puppet Web servers: Apache, Nginx Database servers: Mysql and clones, Postgresql Monitoring: Nagios, Zabbix (preffered),Cacti Virtualization: Openvz, XEN and XenServer, KVM Cloud services: AWS, Rackspace Scripting: bash, python. Mail servers: postfix, dovecot, exim, sendmail and many others Networking: standard network services (DNS, DHCP, Samba, SVN/Git, http proxy, jabber, VPN, backups, monitoring etc), firewalls and routers (iptables, iproute, VLAN, bridging, bonding, BGP, OSPF), different hardware (Cisco, Extreme networks, mikrotik and many other) PS: This list isn't full, as long lists looks ugly :) Also I'm very interesting in development/DevOps task's, especially python development.

    $35.00 /hr
    227 hours
    5.00
  4. Andriy M.

    Andriy M.

    Web Developer / Programmer / Wikipedia expert

    Ukraine - Last active: less than one minute ago - Portfolio: 8

    I'm a programmer and Wikipedia expert. I create websites and develop software with Python/PHP/C. In love with sophisticated algorithms and problem solving. I have a degree in computer science (with emphasis on applied math), and I successfully completed one year of masters program in economics. I edit Wikipedia in my spare time as a long-standing hobby (10+ years), but I do paid consulting and article writing as well. Will be glad to help with your issues on this! Graphic design tasks can be done by my good friend. And he is great!

    $15.00 /hr
    1,029 hours
    4.94
  5. Daniel Guillermo Bareiro

    Daniel Guillermo Bareiro

    GNU/Linux and Unix system administrator

    Argentina - Last active: 1 day ago - Tests: 2 - Portfolio: 2

    I manage and use free/open source software and GNU/Linux (most experienced Debian) since 2000. I have also participated in numerous conventions related to these themes (some of them as speaker) and collaborating with the discovery of bugs in applications for contribute with the community. Specialties: Networks and operating systems security, monitoring technologies. Advanced knowledge of GNU/Linux environments and virtualization platforms. LANs, WANs, VPNs, Firewalls, TCP/IP. Description of services: ---------------------------------- Servers: ====== Installations, configurations and maintenance plans for servers running GNU/Linux or free BSD operating systems range. * Planning, installation and configuration of GNU/Linux systems as both free and open source systems. * Installation, configuration and maintenance of servers of BSD range: FreeBSD and OpenBSD. * Print servers. * Mail servers with spam and virus filters. * Proxy servers. * Fax servers. * Corporate instant messaging servers. * Install and configure DNS servers. Procedures for domain management. * Management servers for uninterruptible power supplies. * Web servers (Apache, PHP, MySQL and PostgreSQL). * Database servers (MySQL and PostgreSQL). * DHCP servers. Networks and Infrastructure: ===================== Installation, maintenance and failure analysis of networks. High-availability systems, mass storage, remote backup, and monitoring equipment and services. * Installation and maintenance. * Firewalls. * VPNs. * DMZs. * RAID, SAN and NAS systems. * Implementation of VoIP telephony systems. * Virtualization systems (for production systems, development and testing). * Remote backup systems. * Monitoring systems. * Control, preventive analysis and resolution of faults in networks. * Installing and configuring high availability clusters. Consultancy: ========== My main goal is to provide a work environment based on trust, integrity and transparency, in order to become your strategic partner to help you realize your projects. My experience in the field of free/open source technologies allows me to offer a wide range of consulting services for your business, which include audit and analysis of systems, applications and networks, migration to free and open source systems, and systems integration, among others. * Migrating to free and open source systems. * Network analysis. * Security analysis. * Configuring applications. * Systems integration.

    $36.67 /hr
    34 hours
    4.92
  6. Alexey K.

    Alexey K.

    C# | ASP.NET |ASP.NET MVC | Umbraco Expert

    Ukraine - Last active: 1 day ago - Portfolio: 7

    I am ASP.NET/C# expert, rated in the Top 1% for .NET/C# skills, with 12 years experience in C#. I have more than 30 projects delivered on time and on budget. I have 18 years of experience in IT in big and small companies. I'm able to work effectively even with minimum supervision and guidance. I perform equally well as large projects in a team, as well as small projects independently. My favorite technologies are C# ASP.NET and Win Forms (web-based and desktop applications) and VoIP. I have more than 8 years experience in VoIP. I'm a citizen of Russian Federation

    $18.00 /hr
    509 hours
    4.97
  7. Shady K.

    Shady K.

    Expert php,laravel,elasticsearch,backbone

    Egypt - Last active: 2 days ago

    Software engineer, love solving problems , learning new technologies especially in web and Data mining , support kiss principle. Most of my experience based on back-end web development. ##Specialties : - #Web Development (PHP Experience) : (MVC frameworks), PSR(0-4) code standard. frameworks Laravel(3+ Y) - Yii(1- Y) - smarty(1- Y) , CMS wordpress(2+ Y) - opencart(2+ Y ) Database Mysql(4+ Y) -Sql server(1+ Y) -mongodb(6+M) - postgresql(3 M) UI Frameworks (underscore, backbone (2+ Y )),Bootstrap, foundation ( not professional but i get what i need ) . #Data Search ,Mining and analytics :- a good production experience getting a real time reports and useful information out of data . Elasticsearch (1+ Y) including a solr to elasticsearch migration , custom complex sorting,recommendation and graphical reports (using kbana) and facets api. Web Crawling custom made PHP crawlers (2+ Y), Pjscrape ##Personal Skills :- #Excellent learning curve #Faster #Decision ma

    $25.00 /hr
    17 hours
    4.94
  8. Andrey G.

    Andrey G.

    Experienced PHP developer, Web architect

    Ukraine - Last active: 1 day ago - Tests: 9 - Portfolio: 4

    • Backend PHP development – OOP paradigm, MVC model • Website architecture design - setup shared or VPS hostings, integration with Amazon Web Services • Linux administration – assured experience with Ubuntu: Apache, Nginx, MySQL, Redis – performance and security configuration • Frontend development – good experience with HTML, CSS, JS

    $25.00 /hr
    9 hours
    4.99
  9. OLEH VOLKOV

    OLEH VOLKOV Agency Contractor

    Expert in C# technical drawing, 3d-modeling, database

    Ukraine - Last active: 9 days ago - Tests: 9 - Portfolio: 6

    I am writing programs last 22 years. I have been programming languages ​​C, C++, Java, C#, SQL, javascript, html, pascal, php, assembler, basic. I worked with Linux, Novell Netware, Windows, OS/2(ATM). I have been working for 10 years in different banks. I have deep knowledge in programming for financial institutions. Of course I create software and services for bank data base. I create 3d details in Solidworks and CAD system. I write desktop applications, web and mobile applications. I am writing code easier to understand, I do a lot of comments, I try to maximize test and exclude all of the error. I am also record in the log file to identify any errors in the application. This approach pays off when the need to make changes to it in the future. When I work, I am constantly in touch with the customer to ensure better cooperation between us. So, if we work together, you can expect that I will be constantly available, because if I were in your position, I would like the same thing. Experienced in: + Small and Very Large Databases + Desktop application + Client-server applications + Mobile application + 2D Game application + Small Web application development + Structured and OOP development best practice. + Work within a technically complex and fast-paced environment. + Solution researching and prototype development. + 3D modeling parts of mechanisms Specialties: + Application Platforms: Desktop, Mobile and Web + Concepts: OOP, Design Pattern, 3D modeling + Languages: C#, Java, PHP, AJAX, SQL, C/C++, Pascal, Markups (XML, html, CSS) + Database Systems: PostgreSql, Sybase ASE, MySQL, Microsoft SQL Server, Oracle, Firebird, MS Access + Application Server: Apache, IIS + Operating Systems: Linux, Windows, Android + Tools: Visual Studio, Eclipse, C++Builder, Delphi, Solidworks, Archicad Why should you hire me? - 100% money back guarantee if not satisfied for any reason - I am always available to communicate

    Associated with: Region IT

    $16.67 /hr
    152 hours
    5.00
  10. Max Khlystov

    Max Khlystov Agency Contractor

    Full-Stack Developer

    Russia - Last active: 1 day ago - Tests: 2 - Portfolio: 10

    Professional area: Project Management, Startups, ERP, IT Security, Banking Software, CRM Systems, Web Engineer, Software Development, API Development, Dev/Ops, High performance and High availability services. Key skills: - Python (Django, Flask) - Java (Spring, Play, Hibernate, Android) - PHP (Laravel 3-5, YII 1-2, CodeIgniter, Zend 1-2, Symfony, CakePHP) - JavaScript (jQuery, AngularJS, NodeJS, Backbone.js, Ajax) - Ruby (Rails 3-4, Sinatra) - SQL / NoSQL (Cassandra, Redis, Mongodb, MySQL, PostgreSQL) - C/C++ (Qt, Android NDK) Glad to join large, long-term projects. Always open to learn and start using new language / technology / API.

    Associated with: Techies

    $22.22 /hr
    1,013 hours
    4.87