Server Administrators & Developers

Showing 31,912 freelancers

Server Administrators & Developers

Showing 31,912 freelancers

  • PHP ajax jquery Mysql Sphinx CakePHP Yii Zend Drupal WP Ruby on Rails

    I am an expert developer (LAMP, ROR, mobile) , experienced architect, indemand DB admin and professional system administrator which qualifies me for most of the jobs. This combination help employers reducing project cost and results in effective communication by having one … more

    I am an expert developer (LAMP, ROR, mobile) , experienced architect, indemand DB admin and professional system administrator which qualifies me for most of the jobs. This combination help employers reducing project cost and results in effective communication by having one expert for all there IT needs. I have received exclusive invitation from oDesk which says "Hi Syed Zeeshan Haider, Great news! Your high-quality work and strong performance in the Web Programming category has earned you an invitation to join our oDesk Verified Web Developers group. As a member of this exclusive group, you will stand out with a badge on your profile and oDesk recruiters will recommend you to clients." I have architect and developed large scale web applications. I have expertise with all major PHP frameworks including Codeigniter, CakePHP, Yii, and Zend. I have been doing CMS development for number of years, customized and developed hundreds of modules for Drupal, Joomla and Wprdpress. I worked in a key position for world second largest B2B portal, this gave me in-depth knowledge of online business and helped me creating successfully running online stores using osCommerce, Magento, Creloaded, Zencart, Opencart and VirtueMart. I have great experience in handling large number of servers on production environments, and have written tons of maintenance script. I have in depth knowledge of replication, clustering, multi-master and master-slave handling. Performance tuning is my field of expertise .I have done number of optimizations jobs for heavy traffic websites . Not only this I have great experience with Linux maintenance (Centos, Debian, Ubuntu), Cloud hosting, Networking , Web servers (apache, nginx, lighttpd, tomcat), Mail servers ( PMTA, MTA, exim, postfix), Bulk marketing and Hosting panels (Cpanel/WHM, Plesk, Directadmin). I also have developed number of Android, iOS and Java apps which can be viewed in my profile with store links. Field of Specialization: • Programming, Web Applications and Ecommerce Solutions • Mobile application development • Database design and Management • high traffic website's scalability • Sphinx Full-text Search Engine • Memcached • Database Optimization • Query Optimization • Performance Optimization • Landing pages optimization • Security Auditing of website • Architecture Improvements • Sphinx Real-time indexes ( RT indexes ) • B2B Expert. System Admin / DBA Expertise: • BASH programming • LAMP administration • Percona Server • MariaDB • Drizzle Database server • mission-critical production environments. • Sendmail, Exim, Postfix • iptables • APF firewall • tcpdump, iostat, vmstat, gdb • Nginx • LVS ldirectord • DB constraints and Integrity • Multi-master replication • master-slave replication • Nagios • Cacti Templates • Backup / Restore processes using backup utilities Xtrabackup, LVM snapshots, mysqldump. • Views, stored routines include stored procedures, triggers • InnoDB and NDB Cluster • Maatkit Percona tool set • Percona Xtrabackup tool • C-Shell , Bash and Perl scripting • High Availability with Active/Passive Master using heartbeat & DRBD. • Pacemaker, MHA & MMM • Amazon MySQL Cloud • MySQL Super Smack Areas of Interest: • Open Source development (LAMP) • Databases (MySQL) • Project Management • SEO • Mathematics • IVR applications • Agile Methodology • SVN Processes: • Kanban • Agile Methodology • Traditional Project Management • Cross functional Teams Professional Profile: • Proven ability to develop high-performance applications and technical innovations. • In demand team leader with proven ability to transform concepts into online, interactive reality. • Savvy webmaster and polished, persuasive communicator. • In-depth knowledge of organic search engine optimization. • Combine creative, artistic talent to deliver revenue enhancing, market oriented sites. • Can manage dedicated and shared servers using RDC and all types of hosting panels Other Expertise/Tools: Joomla, VirtueMart, osCommerce, Wordpress, Drupal, Magento, VIM, command line, delta index, distributed index, Plesk, Helm, H-Sphare, cPannel, Complex Web scrapper, Email data extractor, Intelligent bots, cron jobs, Snoopy, Regular Expression, Power MTA, PMTA, port25, Email Marketing, Thrift, sms api integration,SVN, IVR,Kannel,Open Source WAP and SMS Gateway, Android, jelly bean, Green DAO (SQLite),Volley framework, Lazy loading list view, GCM notification, J2EE, Sturts2, Jersey for Restful API, Hibernate, Velocity template for UI, Jetspeed framework for Portlets, iOS, Spring, Django, Node.js, Objective-C  less

    php seo mysql sphinx website-development memcached database-administration lamp-administration apache-administration security web-content-management oscommerce wordpress drupal joomla virtuemart magento creloaded on-page-optimization architectural-design performance-testing regular-expressions crawlers web-scraping data-scraping mail-server-implementation postgresql email-marketing sendmail email-handling email-deliverability-consulting apache-thrift smtp vim linux-system-administration unix-system-administration unix-shell plesk cpanel ibm-websphere indexing database-management database-design database-modeling erp domain-migration sms svn git github subversion tortoise-svn twilio-api paypal-api paypal-integration network-security rackspace-cloudservers b2b-marketing adobe-dreamweaver exim bash nosql soapui xml xml-web-services python freeswitch freepbx continuous-integration apache-ant phpmyadmin phpfox bugzilla redmine sms-gateway weberp account-management nagios crm 00 more less
    • $33.33 HOURLY RATE
    • 5.0
    • 1076 HOURS
    • PAKISTAN
    • LAST ACTIVE
    • 22 PORTFOLIO ITEMS
    • 3 TESTS
    GROUPS:
  • Java Developer / Web Scraping (scrapy, selenium)

    More than 5 years of java development (spring, MyBatis (iBatis), jersey, struts, jsp, jquery, dwr, quartz, spring security, hibernate, grails, nodejs, angularjs). Databases: Oracle, PostgreSql, MySql. Web scraping(scrapy, beautiful soup, lxml and selenium frameworks) Good skills in linux (installation … more

    More than 5 years of java development (spring, MyBatis (iBatis), jersey, struts, jsp, jquery, dwr, quartz, spring security, hibernate, grails, nodejs, angularjs). Databases: Oracle, PostgreSql, MySql. Web scraping(scrapy, beautiful soup, lxml and selenium frameworks) Good skills in linux (installation, configuration, bash scripting). Python scripting (sites scrapping, client-server applications, xml and html parsing, small scripts for administration needs)  less

    java javascript grails groovy python apache-tomcat jboss jsp apache-struts hibernate ibatis spring-framework linux-system-administration svn tortoise-svn git sql jquery 00 more less
    • $25.00 HOURLY RATE
    • 5.0
    • 96 HOURS
    • BELARUS
    • LAST ACTIVE
    • 5 PORTFOLIO ITEMS
    • 4 TESTS
  • node.js (ex. php) backend webdeveloper

    I'm one of the 3% most active JavaScript users on github - see first link in my portfolio. I have passed nodejs test among 10% most skilled nodejs developers - https://www.odesk.com/exams/_10426641 I mainly develop scalable RESTfull … more

    I'm one of the 3% most active JavaScript users on github - see first link in my portfolio. I have passed nodejs test among 10% most skilled nodejs developers - https://www.odesk.com/exams/_10426641 I mainly develop scalable RESTfull NodeJS servers for native mobile or single page applications or phantomjs based webscrappers trying to keep them simple and fast. I'm proficient with MySQL,PostgreSQL, AmazonRDS, MongoDB, Redis as databases, and can use most suitable one for your project. I can be your devops for tasks of deploying nodejs applications on Centos 7 VPS/VDS servers, Amazon EC2 or Heroku Cloud Application Platform. In my work i use git,mercurial and SVN version control systems, for every job i create a private repo at bitbucket.org for (me and customer only) for feedback, bug reports and support. I have a strong background as php/zend/symfony 1.4 developer and linux user since 2002 year. My work hours is 5 PM to midnight - Moscow time.  less

    node.js javascript mongodb jquery redis php mysql apache-administration linux-system-administration centos api-development heroku git mercurial ssh nginx symfony zend-framework 00 more less
    • $33.00 HOURLY RATE
    • 4.2
    • 952 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 10 PORTFOLIO ITEMS
    • 7 TESTS
  • FullStack JavaScript,PHP,Python Developer

    As a full-stack developer, I have extensive experiences in web techniques including PHP, Python, Java and their frameworks like Magento, Wordpress, Drupal, SugarCRM, Zend, Cakephp,Django,Flask,Scrapy, Spring, Hibernate and JSF with PrimeFaces. To be concrete and specific, I … more

    As a full-stack developer, I have extensive experiences in web techniques including PHP, Python, Java and their frameworks like Magento, Wordpress, Drupal, SugarCRM, Zend, Cakephp,Django,Flask,Scrapy, Spring, Hibernate and JSF with PrimeFaces. To be concrete and specific, I have 6+ years of experience in the e-Commerce industry (Magento, Drupal commerce and Prestashop) and over 4 years - in Magento development (Community, Enterprise and GO editions) As for Java platform, majority of the developed applications leverage concepts of ORM (Hibernate, iBatis, JPA2), dependency injection and inversion of control (Spring), web services (SOAP, but mainly REST - using Jersey frequently), rich GUI (Dojo,ExtJS) and relational database as well as NoSQL storage. Recognized as a significant individual contributor as well as a team player. Highly motivated, focused, and constantly remains current with state of the art technology.  less

    php javascript sql html css java jquery python django-framework unix-system-administration 00 more less
    • $25.00 HOURLY RATE
    • 4.5
    • 1139 HOURS
    • CHINA
    • LAST ACTIVE
    • 10 PORTFOLIO ITEMS
    • 12 TESTS
    GROUPS:
  • Dmitry Volk

    In the past 5 years I have been specializing in servers maintenance, which includes DNS management, DHCP, print servers administration, Microsof's Exchange Server administration, Group policies, Active Directory management and backups. To broaden my professional knowledge I have taken … more

    In the past 5 years I have been specializing in servers maintenance, which includes DNS management, DHCP, print servers administration, Microsof's Exchange Server administration, Group policies, Active Directory management and backups. To broaden my professional knowledge I have taken the following courses: - Comptia Server + certificate - IBM Server certificate - HP Stations certificate - MCSA certificate, and MCITP (currently under progress) In addition, I have 3 years of experience working in help-desk environment. I seek for interesting system administration jobs, including help-desk management, remote assistance, and server maintenance. I specialize in Microsoft servers and products, and I'm looking for a long-term work relationship.  less

    operating-systems-development windows-administration microsoft-exchange-server microsoft-hyper-v-server 00 more less
    • $35.00 HOURLY RATE
    • 5.0
    • 15 HOURS
    • ISRAEL
    • LAST ACTIVE
    • 2 PORTFOLIO ITEMS
    • 2 TESTS
  • Cisco Expert -VOIP-Linux

    Cisco ISP Engineer , with over two Years experience in an ISP company , i have a great experience in dealing with complex ISP networks and other networks . In addition to being CCNP Certified , i have an experience in implementing ,monitoring & Troubleshooting … more

    Cisco ISP Engineer , with over two Years experience in an ISP company , i have a great experience in dealing with complex ISP networks and other networks . In addition to being CCNP Certified , i have an experience in implementing ,monitoring & Troubleshooting various cisco networks. In addition to Cisco , I have an experience in squid cache servers and integrating it with Cisco equipment and Linux Voip servers such as Elastix & freepbx. Also i have an experience with Microsoft Active directory & DNS. I can and will deliver great results with short time and client satisfy.  less

    linux-system-administration network-administration cisco-routers cisco-asa elastix freepbx squid radius 00 more less
    • $35.00 HOURLY RATE
    • 5.0
    • 10 HOURS
    • PALESTINIAN TERRITORIES
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 3 TESTS
  • Web Developer And Linux Administrator

    Great Work Experience in Web Development. Good Knowledge of versatile web applications. I have touched every aspect of web development, linux administration and always keep myself updated about the current trends and technologies it makes me to greatly understand the … more

    Great Work Experience in Web Development. Good Knowledge of versatile web applications. I have touched every aspect of web development, linux administration and always keep myself updated about the current trends and technologies it makes me to greatly understand the problems and devise a perfect and innovative solution for them. The area of expertise include PHP5, JAVA SE, LINUX, HTML, CSS, JQUERY, AJAX, CAKE PHP, CODEIGNITER and various CMS's currently present in the market that include WHMCS, Wordpress, Magento.. etc. Let me know your requirements, i will come up with and implementation model.  less

    php whmcs api-development javascript paypal-api amazon-web-services mysql amazon-mws amazon-webstore 00 more less
    • $20.00 HOURLY RATE
    • 5.0
    • 113 HOURS
    • INDIA
    • LAST ACTIVE
    • 4 PORTFOLIO ITEMS
    • 2 TESTS
  • Severe Siberian Software Engineer

    Hi, my name is Andrey Shestakov. I'm from Russia. Since 2007 I'm working in commercial software development. I have worked in different scaled projects. From little desktop applications to industrial solutions. And I was team leader on my … more

    Hi, my name is Andrey Shestakov. I'm from Russia. Since 2007 I'm working in commercial software development. I have worked in different scaled projects. From little desktop applications to industrial solutions. And I was team leader on my last big project. My strong points are responsibility and quality. You will get bad job from me never. I'm sure that any project must work and must be done carefully on every stage. Also you will lose me never. Usually I warn in advance if I need be absent and be offline long time. My English is not bad for chat or email (I hope so :) ). And I think that this variants are better then speaking. Just because any part of task discussion may be reread anytime and none detail will be lost. So, I prefer Skype chat for discuss project details. I have a Bachelors in Applied Mathematics and Computer Science from Novosibirsk State Technical University, in the Russia. Also my diploma passed nostrification in Czech Technical University in Prague and get education level on Master degree. I'm developing primarily on C/C++ and Python 2.x.x. Here are my skills. OOP/OOD: - OOP is main instrument on C++ and Python, design patterns need to know for good architecture and I know it. C/C++ skills: - STL - POSIX - multithreading - multiprocessing - Qt 4.x.x Python skills: - STL - Django - Flask - Tornado - Cherrypy - Sqlalchemy - Google API - Yahoo API SQL skills: - MySQL - PostgreSQL NoSQL skills: - Redis Also I have experience in administration UNIX-based operating systems since 2003.  less

    python django-framework tornado c++ stl qt freebsd nosql redis mysql postgresql lamp-administration linux-system-administration git opengl 00 more less
    • $33.33 HOURLY RATE
    • 4.6
    • 268 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 3 TESTS
  • Server Infrastructure / Application & Desktop Virtualization

    - To assist any company to successfully discover, develop and implement their talent with the talents and knowledge that I've been blessed.. - To educate and help our valuable customers to take the wisest choise for their investment, and lead them … more

    - To assist any company to successfully discover, develop and implement their talent with the talents and knowledge that I've been blessed.. - To educate and help our valuable customers to take the wisest choise for their investment, and lead them to be succesful. - To succesfully impact the life of anyone who come into my life, applying the right foundations: Trust, Responsibility and Integrity, and fulfill the purpose and destiny for what I've been created for. AREAS OF EXPERTISE - Leadership Skills - Oral & Written Communications - Time Management - Detail Oriented - Critical Thinking - Customer Relations - Staff/Client Training & Mentoring - Multitasking - System Integration - Server Engineering - Network Administration - Monitoring Results - Strategic Planning - Resource Optimization - System Analysis, Redesign & Testing - Application System Development - Software Quality Assurance SKILLS * Knowledgeable on Infrastructure and Networking technologies that include solutions based on Microsoft, Citrix, Altiris, VMware, Novell, and Linux products. * Database administration * Software QA & Testing experience (2.5 years) * System Testing, Design, and Programming skills with languages like Java, .NET VB/C#, Ruby, php and python. * Project Management Skills * Basic skills on Ethical Hacking and Penetration Testing - IT Training (Microsoft, Citrix and VMware)  less

    virtualization project-management software-testing systems-development technical-documentation citrix-xenserver education-technology distance-education vmware-administration windows-administration 00 more less
    • $30.00 HOURLY RATE
    • 5.0
    • 123 HOURS
    • MEXICO
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 9 TESTS
  • Expert PHP/MySQL, High-Load, AWS Architector, Troubleshooting

    I am a web developer, who comes from a system administrator. As a developer, I have a 10-years experience in PHP, MySQL, Linux, Troubleshooting, Redis, RESTful API, XML, JSON, etc. As a system administrator I have experience with advanced troubleshooting … more

    I am a web developer, who comes from a system administrator. As a developer, I have a 10-years experience in PHP, MySQL, Linux, Troubleshooting, Redis, RESTful API, XML, JSON, etc. As a system administrator I have experience with advanced troubleshooting, Linux, Nginx, Apache, PHP (also with FPM configuration) and much more. Why you can hire me? All my jobs ended successfully. I writes a strong, secure, fast and pretty code. I'm not a just coder, I am a programmer with a big internal knowledge. I have a 10 years experience in a development and troubleshooting complex projects, that requires caching, OS relations, big databases, analytic, etc. I have a government certificate for security development. I can write your application, support and debug it. Requited in a High-Load development? It's not a problem. Need to setup a new server for that? It's not a problem. It will be secure, fast and strong. Need to develop DBMS architecture? See my portfolio, it's not a problem too. Maybe you wish to get a documentation after development? It's not a problem. Most of my customers works with me permanently. I would like to develop your job and troubleshoot your job. You will be happy. I'm will not hide from you. I'm a responsible person who would be like to do your job! My Skype ID: "igor.zettich"  less

    php mysql laravel-framework linux-system-administration nginx amazon-web-services load-balancing clustering twitter-bootstrap sphinx 00 more less
    • $20.00 HOURLY RATE
    • 4.9
    • 402 HOURS
    • BELARUS
    • LAST ACTIVE
    • 7 PORTFOLIO ITEMS
    • 10 TESTS
    GROUPS:
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