Network & System Administrators

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Bogdan B.

Bogdan B.

Linux System Administrator / DevOps

United States - Last active: 4 days ago - Tests: 2 - Portfolio: 4

- Linux maintenance/troubleshooting (RHEL, Centos, Debian), - Cloud hosting (Amazon EC2, AWS, S3, Digital Ocean), - Networking (dhcp, DNS:powerdns/bind/named, vpn: openvpn/pptp, firewalls: iptables/ipfw, qos, proxies), - LAMP/LNMP Stack - Mail servers (exim, postfix , antispam/ antivirus: clamav/spamassassin/amavis, courier, dovecot), - Bulk marketing (DKIM, SPF,DMARK,ADSP, high speed/inboxing, Interspire, PowerMTA), - Automation (puppet, shell scripting), - Automation Deployment (Capistrano) - Monitoring (nagios,Icinga, zabbix,Cacti,Graphite), - Magento System Performance Optimization - Wordpress Performance Optimization - Mysql Perfomance Optimization, Replication - Full Disk Encryption / Remote Unlock /PXE unlock (Luks/DiskCryptor) - Load Balancer (haproxy)

$38.89 /hr
249 hours
5.00
Muhammad Asif

Muhammad Asif

Wordpress | Wishlist Members Expert | DAP Expert |...

Pakistan - Last active: 21 days ago - Tests: 4 - Portfolio: 19

I am expert in building websites using: Wordpress, Php, MySql, HTML/CSS, Technical Customer Support Management, Joomla, Woo Commerce, Wishlist members, Digital Access Pass (DAP), Optimize Press 1.0 and 2.0, Genesis Framework, Woo Framework.. Cloning and migration. Integration of 1shoppingcart, Premium Web Cart, 2co, Paypal Clickbank. Customization of: Aweber, MailChimp, GetResponse, IContact Form and setting up. I am a quality communicator and deliver project in time so far throughout the Odesk history. I have earned certificate for Woo Commerce sites setup and Creation and Managing Responsive templates.

$56.00 /hr
4,603 hours
4.99
Maxim Vorobey

Maxim Vorobey

Senior Software Engineer/Architect

Russia - Last active: 1 day ago - Tests: 3

I am a web application developer specializing in PHP/JS with 15 years experience. strong OOP knowledge, MVC etc php, mysql, html, css, less, js, coffeescript twitter bootstrap, jquery, backbone.js, angular.js ajax, json, xml C/C++/Objective-C (just for fun) load balancing, big data, high traffic data scraping, data parsing saas, soap, rpc, rest phpunit, phpspec, tdd, bdd, xdebug symfony, symfony2, zend2, doctrine2, bitrix mysql, postgre, mongo (clustering, replications) memcached, redis, rabbitmq, sphinx ubuntu/debian/centos/archlinux/osx nginx, lighthttpd, node.js, apache2 git, mercurial, svn opengl, glsl api: paypal, facebook, twitter, livejournal, vkontakte, jira, mailchimp, mandrill, zendesk, amazon aws agile/scrum: jira, redmine

$69.00 /hr
2,267 hours
5.00
Ivan T.

Ivan T.

Ruby / Rails Architect w/ scaling exp. 8 yrs, 12k...

Russia - Last active: 1 day ago - Tests: 3 - Portfolio: 1

Independent full-stack developer / technical architect skilled in: * Ruby / Ruby on Rails (from edge to legacy) * Scalable, decentralized (modular) applications architecture * Databases: relational (PostgreSQL, MySQL), NoSQL (Redis, Riak, MongoDB, Neo4j), big-data-specific (Google BigQuery, Amazon Redshift) * Background jobs processing: Sidekiq, Resque, delayed_job * Message queuing: RabbitMQ (AMQP) * Client-side tech (HTML5 / CSS3 / JavaScript [native / AngularJS]) * RESTful APIs implementation, integration with any third-party APIs, data harvesting from sites which do not provide an API * Social media integration (authentication, querying, publishing): Facebook, LinkedIn, YouTube, and more * Process: TDD/BDD with RSpec, Cucumber, Capybara, Zeus, Guard * Rails applications deploy, monitoring, maintenance: Heroku, Amazon EC2, Linode, Heroku) * Amazon Web Services infrastructure: EC2, S3, Glacier, Redshift,.. * Version control systems: svn, git (with GitFlow, GitHub Flow workflows) As a back-end technical architect / developer, I can develop scalable and stable multi-node server-side applications and also can evaluate your Ruby/Rails application and make suggestions on possible optimizations / refactoring / adopting best practices. As a team lead, I can divide, regroup, prioritize and delegate tasks to developers, consult developers on best practices, ensure high overal quality of software product. I like challenges, have solid skills of problem solving, do not require supervision to successfully perform my duties. Dependability is also one of my key strenghts (never left my work half-done / half-functioning). If my current rate fits your project's budget, contact me to discuss technical and other aspects — I'm looking forward to it.

$100.00 /hr
12,797 hours
5.00
Dragos Madarasan

Dragos Madarasan

System administrator [MCTS, CCNA] , Google Apps Ce...

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

During the past 4 years I have specialized in managing Windows, Active Directory based networks. I am skilled in System Center Configuration Manager 2007 and System Center Data Protection Manager (2007/2010). I also posses networking skills (TCP/IP, DNS, DHCP, VPN, Wi-Fi) and am comfortable with Cisco switches and routers. Lately I am very interested in cloud based applications and Google Apps in particular. I am a certified Google Apps Deployment Specialist

$35.00 /hr
124 hours
4.70
Alex Fortuna

Alex Fortuna

Senior Ruby on Rails Developer / Development Consu...

Russia - Last active: 1 month ago - Tests: 9 - Portfolio: 2

I'm seeking opportunities to build high-quality dynamic web solutions in Ruby on Rails. I've got a solid programming background with over 15 years experience. I'm a self-organized, disciplined and quality-oriented performer with good team management skills. A list of skills/features follows. * Passion for programming. * 15+ years overall development experience in 10+ languages. * 10+ years team leadership experience. * 10+ years Unix admin and TCP/IP networking experience. * 7+ years Ruby experience. * 5+ years Ruby on Rails experience. * Contributing to Ruby/Rails open source community (https://github.com/dadooda). * Clean, distinct, well-documented and reusable code is a *MUST*. * Solid understanding and everyday use of TDD (RSpec). * Strong JavaScript: raw language, jQuery, frameworks. * Everyday Git usage. * Practical programmer’s knowledge of HTML/CSS. * Hands-on experience of building high-traffic web applications in Unix environment (nginx, memcached, SQL server tuning, load testing tools, etc.). * 10+ years LAMP experience.

$37.00 /hr
2,460 hours
4.64
Andrii K.

Andrii K.

System Administrator

Ukraine - Last active: 3 days ago - Tests: 5 - Portfolio: 3

Last 6 years I have engaged in system administration using Apache2, Nginx, PHP, Perl, Python and MySQL including sites for startup companies and small businesses. extensive experience in the deployment of sites and projects of varying complexity, and I am seeking opportunities help you to build your business. I have great experience in: - Linux maintaince/troubleshooting: Debian, CentOS, Gentoo, Ubuntu, RHEL etc - Apache2 + Nginx, Nginx + PHP-fpm, Nginx + PHP-fastcgi, MySQL, Varnish, Memcached. - Linux serverside: iptables, rsync, Bind, OpenVPN, - Mail: Exim, Dovecot, Postfix. - Cloud Hosting: Digitalocean, RackSpace, Amazon (EC2, AWS, S3), Linode, GoDaddy - Hosting providers : Softlayer, Hetzner. - Backup/Migration - Hosting panels : Plesk, whm\cPanel, ISP , DirectAdmin, Virtualmin - Virtualization: Xen, KVM, OpenVZ, Proxmox - Monitoring: Zabbix, Munin, Cacti, Nagios - CMS : Wordpress, Drupal, Magento, Joomla, CS-Cart

$30.00 /hr
1,496 hours
4.99
Umer S.

Umer S.

iOS/Cocos2d/Cocos2d-x/Unity3d Developer

Pakistan - Last active: 1 month ago - Tests: 3 - Portfolio: 4

Over the last 4 years, I have been working as a Lead Mobile Developer. My expertise lies in iOS, Android and Unity3d development. I have wide range of experience in native applications, Cocos2d and Unity3d Games. I also have great skills in Cocos2d-x and Unity3d for cross platform release. Any sort of Ads integration or In-App Purchases (Charboost, PlayHaven, iAD, Vungle, AdMob, AirPush, MoPub, AppLovin etc.) for both iOS and Android is a piece of cake for me. I can assist in any kind of Mobile Development problem, from start of its development to the final upload. My core competency lies in the complete satisfaction of my clients. Here at oDesk, i am seeking opportunities to work with professional clients and to have long term business relationship.

$33.33 /hr
1,008 hours
5.00
Ouahib El Hanchi

Ouahib El Hanchi

Programmer / Developer

Morocco - Last active: 14 days ago - Tests: 5 - Portfolio: 4

I am a talented programmer and developer with years of experience and educational training. I am willing to work as a team member and also autonomously for your project. I have also worked for many years of my career as a C/C++ programmer and as a web designer. I also have experience many other programming languages to name a few : Python, PHP, Perl, JavaScript ... And also working with different DBMSs. I got experience also in data entry, data processing and document formatting. I will deliver my best work at a high standard. I look forward to being hired by you for your jobs.

$50.00 /hr
11 hours
5.00
Roman D.

Roman D.

Server Administrator, Virtualization, Networking -...

Romania - Last active: 4 days ago - Tests: 17 - Portfolio: 1

My objective is to bring excellent client satisfaction, providing quality and professional work. I am an IT Engineer with bachelor degree. I'm also an experienced Linux Server Administrator, areas of my expertise are: *Google Apps Certified Deployment Specialist *Windows family Operating Systems (administration, configuration, audit, optimization) *Rights Management System for Active Directory (installing, configuring) *Linux - CentOS, RedHat, Debian, Ubuntu, Gentoo (administration, configuration, audit, optimization) *Webhosting Administration (cPanel, Plesk, DirectAdmin) *Amazon AWS setup using RightScale.com or Amazon tools *Apache (installation, configuration, optimization) *Network administration (CCNA certified) *MySQL (installation, configuration, optimization) *Subversion systems - SVN, Perforce (instalaltion, configuration) *Atlassian JAVA applications - Jira, Confluence, etc. (installing and configuring) *SMS Gateway (Kannel, PlaySMS) *Mail programs (Exim, Postfix, Qmail, dovecot, ssmtp) *Webprogramming knowledge: PHP, HTML, CSS, JavaScript *System Backup and Restore automatization *System Services Monitoring automatization *Virtualization (VMWare, VirtualBox, HyperVM, OpenVZ, Xen) *Shell Scripting *VPN systems, OpenVPN (installation and configuration) I can figure out fast the problem and find a solution for it. Languages that I speak: Russian and Romanian - native speaker; English - advanced level.

$35.00 /hr
1,651 hours
5.00