IT & Networking Administrators

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  1. Roman B.

    Roman B.

    System Administrator

    Russia - Last active: 20 hours ago - Tests: 8

    Experienced system administrator. Worked for 6+ years in ISP company as Lead System Administrator. Many linux systems been installed and supported by me. I have big experience in VMWare vSphere, Veeam Backup, Netapp SAN and networking. Also I've managed Cpanel WHM hosting, so know everything about Apache, MySQL, PHP, DNS and email. I know how to setup VoIP and IPTV systems from small to big size. I can setup monitoring for all of this systems (SNMP, service based and system agents). Also I have big programming knowledge in PHP and other OOP languages. I'm looking for System Administrator or Lead System Administrator position.

    $35.00 /hr
    348 hours
    5.00
  2. Ilya S.

    Ilya S.

    Senior PHP developer (HTML, JS, DBs)

    Russia - Last active: 20 hours ago - Tests: 4 - Portfolio: 3

    Developing complex web-applications since 2008. Main language: php Main framework: Yii Main specialization: complex backend development Also: - php5 (OOP, native php, patterns) - html5 (crossbrowser templating) - javascript (jQuery, backbone, native js...) - Frameworks: yii - perfect knowldege, laravel, symfony, zend, phalcon - basic knowledge - MySQL (optimization, highload development) - nosql: redis, mongo, elastic, memcache... Making projects of any complexity including highload applications. Working on any kind of project: starting from the simple applications (my little passion is writing scrapers :)) or widgets and up to the great applications distributed on many servers. Have experience in developing: - video-hosting with subscriptions (10k+ unique users daily) - json-based APIs for mobile applications - full-featured eCommerce web-sites and plugins - payment processors integration (Paypal, Stripe, mpay24, some others) - different web-scrapers. Scrapers which can break scrapers-protection - integrating different APIs into a site: different Google APIs, MozScape, and any other which have documentationb Knowledge of highload and big data theory: sharding, caching, partitioning and so on. My major advantage is - I simply DO what the client wants. I'm always happy to learn new tools and technologies during a project. You can contact me by email, skype, gtalk, ICQ or any other way you prefer.

    $33.00 /hr
    292 hours
    5.00
  3. Roman Kisilenko

    Roman Kisilenko

    Project Manager/Java Architect/Team Leader

    Russia - Last active: 20 hours ago - Tests: 2

    I'm leading IT department of Agilium Labs, LLC. On this job I share roles of project manager, team leader and architect to create mature products from scratch. From organizational point of view I have experience working in team leader role for 5 years, good project management and requirement management skills. I understand typical software development processes, fan of Agile & DevOps, able to organize development process on a project and manage risks. From technical point of view I have excellence knowledge of core Java, JEE, Java web frameworks and Swing. Certified Java developer. I know and able to follow Extreme Programming development practices and Scrum methodology. Have excellent knowledge of design patterns and software architecture. My other strong skills are Linux administration, database administration and development, SaaS applications development, VOIP applications development, virtualization and cloud services. Finally, I have some skills in Ruby, RoR, C++.

    $50.00 /hr
    2,220 hours
    5.00
  4. Daniel Z.

    Daniel Z.

    Highly skilled API integrator, PHP (ZF) Coder and Project Manager

    Poland - Last active: 20 hours ago - Tests: 7 - Portfolio: 6

    Goal: Project and develop high quality apps for your success. Profile: OOPHP & Zend coding, IT consulting and business analyst, project coordinator and manager, Other skills: Apache, Bind, SSH, bashscripting, Memcached, Github, Solaris, Oracle, MySQL, Radius, AD, expert knowlegde of many *ux and windows systems Advantage: Project and implementation of many web apps. Most of it projected and developed by myself using Zend Framework, Google API (youtube, gdata), social API (twitter, facebook). Some of it integrated with operating systems or AAA software (radius, ldap). Usually Design Patterns were used (like Template Method, Version of Control, DAO, Dependency Injection, Decorator and so on). Some application built upon a structure of web services (XML, REST, JSON), some using jQuery and AJAX. Tools and technologies: Apache, radius, bind, ldap, Zend Framework, XML, SOAP, Linux, Linux daemons, Memcached, Sockets, REST, JSON, Oracle, MSSQL, MySQL, Design patterns, MVC, SVN, BASH, PHPUnit, Xdebug, Unit testing, Google Youtube API, Google Gdata API, Google Maps API, Facebook API, PayU API

    $35.00 /hr
    1,615 hours
    4.98
  5. Alexander Solovyov

    Alexander Solovyov

    Senior Full Stack Web Developer (ZF2, Node, Angular, Backbone)

    Russia - Last active: 20 hours ago - Tests: 3 - Portfolio: 3

    Passionate developer of PHP, SQL (MySQL), NoSQL (MongoDB), JS seeking for challenging projects on the edge of technology. General knowledge: 1) PHP + Zend Framework 2 + Doctrine ODM/ORM + Apigility (REST). 5+ 2) Native Javascript (prototypes and ...). 5+ 3) JS framework Marionette js with Require JS and jQuery. 2+ 4) Node js (+ scappers Casper JS and Phantom JS) 2+ 5) Knowledge of HTTP protocol + experience with REST + SOAP. 5+ 6) MySQL. 5+ 7) MongoDB. 3+ 8) Experience with BigData (e.x. classification Bayes) and software (Google Bigquery, Hadoop and R lang) 2+ 8) Experience of implementation OTA (Open Travel) standard. 1+ 9) Linux (Debian, Ubuntu and others) 5+ 10) HTML5 / CSS3. 5+ Passive knowledge: 1) Java + Hibernate 1+ 2) C/C++ 1+ 3) Unix (Solaris) 1+

    $44.44 /hr
    1,183 hours
    5.00
  6. Alexey E.

    Alexey E.

    PostgreSQL Expert & Full Stack Web Developer

    Russia - Last active: 2 days ago - Tests: 10 - Portfolio: 6

    6+ years experience in web-development. 3+ years experience in Linux and PostgreSQL administration. Strong Math skills. Interested in big data processing/analysis, highload projects, data mining, AI, applications security. PHP, Zend Framework, PostgreSQL, MySQL, SVN/Git, Linux Administration, Performance Tuning, Database Administration, Payment Processing Integration, Octave, R, SMPP, Kannel, Usability Testing, jQuery, Twitter Bootstrap.

    Groups: Pinnacle Cart eCommerce Application, Zend Certified Engineers

    $30.00 /hr
    5,953 hours
    4.97
  7. Gary G.

    Gary G.

    Web Development / Java / JSF / PrimeFaces / Lotus XPages Notes Domino

    United States - Last active: 25 days ago - Tests: 1 - Portfolio: 1

    I have over 15 years of development and implementation experience on projects ranging from small departmental applications through complex enterprise solutions in multi-national corporate environments. My software and application expertise is very diverse and includes Java, Java EE, JSF, JSP/Servlets, and related frameworks and APIs including Spring, Hibernate, EclipseLink, JBoss Seam, RESTful Web Services, PrimeFaces, Lotus Notes & Domino, XPages, Visual Basic, and Crystal Reports. My relational database expertise includes MySQL, Microsoft SQL Server, Oracle, and PostgreSQL. Beyond application development, I am skilled in high-level requirements gathering, risk analysis, technical design analysis, application modeling, implementation planning, and support. Please allow me to provide you with not only expert technical skills but the knowledge and experience I have gained delivering a broad range of business solutions such as CRM, Change & Problem Management, Incident Management, Help Desk, Health Care, Human Resources, as some examples.

    $50.00 /hr
    1,400 hours
    5.00
  8. Volodymyr P.

    Volodymyr P.

    System and network administrator

    Ukraine - Last active: 1 day ago - Tests: 11

    I am system administrator with 15 years experience. Over the last 6 years I manage RHEL and Debian servers. I am part time freelancer since 2012. My core competency is Redhat and Debian family linux. I have experience in general system administration, mail servers, VPN, VOIP, LAMP, virtualization. Also I have experience in FreeBSD, Windows server and workstation support, network planning and management, Cisco routers and switches, QOS, I am familiar with ITIL, incident management, business continuity planning.

    $50.00 /hr
    643 hours
    4.92
  9. Andrii S.

    Andrii S.

    Sr. Software Developer (Python&Django, Node.js)

    Ukraine - Last active: 2 days ago - Tests: 10 - Portfolio: 2

    * Have production experience w/ following programming languages: Python, JavaScript (node.js), PHP, Perl. * Skilled in web applications back-end & RESTful APIs development, distributed architecture. * Have experience in both relational DBs (MySQL, Oracle, PostgreSQL) and NoSQL solutions like MongoDB (have certificates from 10gen), Redis. * Feeling comfortable with such cloud computing platforms as Amazon EC2 and Rackspace, Heroku and OpenShift.

    $44.44 /hr
    286 hours
    4.97
  10. David B.

    David B.

    Senior Mobile App (iOS/Android) & Server Back-end Developer

    Netherlands - Last active: 20 hours ago - Tests: 17 - Portfolio: 16

    *** Your Journey into Native Mobile App Development (iOS/Android) starts with me *** Full-Stack Native Mobile Apps & Web Services Expert Full Time support(40~60 hrs/week), Daily progress report & Skype live chat Long-term relationship contract & Money-back guarantee *** iOS/Android Application Development *** - iOS Native (XCode): Objective-C, Swift, Cocoa Touch, iOS7 & iOS8 Kitkat - Android Native (Studio/Eclipse): Java - Hybrid Apps: Xamarin (.NET), Phonegap by Ionic (Angular JS), Cordova SDKs, JQM, Kendo UI - Mobile Games: Cocos2D, Cocos2DX, Unity3D, Board SDK *** Mobile Application Services Support *** - Analytics and Testing : Google Analytics, Apptentive, Flurry, KIF testing framework - Back-End: JSON-RESTful APIs built on PHP MVC Frameworks for CRUD as well as 3rd Party SDK integration like Parse, Twillio - Services: Cloud, iBeacon, FB, Twitter, LinkedIn, Twitter, Google, Audio/Video (Wowza) Streaming *** Web Services Support *** - Main Tools: PHP, MYSQL, HTML5, DHTML, JQuery, CSS3 (Bootstrap & Responsive & Parallax) - JS Templates: AngularJS(Ionic), BackboneJS, NodeJS(XMPP), RequireJS - Common Templates: WP, Joomla and PHP MVC frameworks : CodeIgniter, Laravel, CakePHP, Yii and Kohana - Ecommerce: Magento, OpenCart, WooCommerce, Shopify and Prestashop I work as individual, supporting full time. I'm here to analyze your ideas and requirements and offer our vision of project realization. Rough quote will be ready within 48h. If it is acceptable for you, I'll prepare detailed project development plan indicating timeline and budget. I always make sure to bring you upon successive results of highly and creatively qualified results before your deadline and guarantees refunding for any unsuccessful results or issues which are responsible for me. I am seeking an opportunity to become a business partner with long-term relationship forever.

    Groups: Application Developers Alliance

    $70.00 /hr
    455 hours
    5.00