Top Upwork Freelancers

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  1. Andrew O.

    Andrew O.

    Graphic & Web Designer

    Ukraine - Last active: 3 days ago - Tests: 4 - Portfolio: 56

    Hi there, I'm Andrew from Ukraine and I'm a creative graphic, web, interface, logo, mobile app (iPhone/iPad, Android) designer with a portfolio that you can see below. Ok, I'm also a Brainbench certified Adobe Photoshop guru, photo retoucher and icon/SVG illustrator with freehand drawing experience. Expert in PSD to HTML/CSS conversion (mockup to markup slicer). WP themes coder. Providing high quality website graphics, logos, UI/UX, icons design, vector illustration, photomanipulation, cross-browser XHTML/jquery coding at oDesk for 5 years. If you still read this heap of keywords you'd probably consider me a SEO expert... but no, I just can make a nice clean-coded google-friendly website for you.

    $18.00 /hr
    4,844 hours
    4.71
  2. Gautam Manohar

    Gautam Manohar

    Cloud Scalability & Devops Consultant

    India - Last active: 4 days ago - Tests: 4

    Skills : Puppet, Chef, Ansible, Docker. Rapid deployment & scaling in Amazon AWS, EC2, S3, RDS, SQS, SES, SDB, CloudFront, VPC, Nagios, Zabbix, Apache, Memcache, Mysql, PostGresql, MongoDB, PHP, Ruby, Capistrano, Hadoop, Apache Cassandra, ActiveMQ....(and more) IT professional with 7 years experience in various IT technologies and systems. Excited about rapidly scaling architecture, Linux/Unix systems administration and related technologies that enable a Robust, highly Available, highly Redundant Enterprise Class System.

    $66.67 /hr
    3,733 hours
    5.00
  3. Andrii K.

    Andrii K.

    System Administrator

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

    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
    1,991 hours
    4.99
  4. Benjamin K.

    Benjamin K.

    The King in ASP, PHP, JavaScript, AJAX, Lotus Domino Development

    Philippines - Last active: 3 days ago - Tests: 16 - Portfolio: 16

    I am the best in Web and Client/Server development using PHP, MySQL, Lotus Domino, ASP Classic, VB. As an IT project manager for the greater part of 12 years, I have thus perfected my skills in PHP, Lotus Domino, ASP Classic, HTML 4.0, JavaScript, and CSS 2.0, among others. As a developer, I find out the exact needs of my client and hold myself accountable for time management, cost-efficiency, conflict resolution, quality assurance, and above all, client satisfaction. My unquenchable thirst for knowledge, coupled with specialized experience in the field, makes me your ideal developer. I am self-motivated and have never missed a deadline. Over the past decade, I have been developing applications using Microsoft ASP, Visual Basic, PHP, MySQL, SQL Server, and Lotus Notes, majority of which are deployed over the web and are rendered cross-browser compatible. Such applications were developed either during my tenure for my employers or through referrals from clients or contractors that require my expertise in web development. My experience includes, but is not limited to, PHP, ASP, MySQL, SQL Server, HTML 4.0, CSS 2.0, Ajax, JavaScript, VBScript, Visual Basic for Applications (VBA), Lotus Domino, object-oriented programming (OOP), and HP LoadRunner.

    $22.26 /hr
    8,787 hours
    4.56
  5. Paolo Calvi

    Paolo Calvi

    Django Specialist and Senior Web Developer

    Brazil - Last active: 1 day ago - Tests: 2 - Portfolio: 6

    I love to develop in Django. I can define myself a Senior Programmer and a Technical Leader, specialized in projects that uses Python/Django as backend and Angular JS as frontend. The two frameworks connected through methodologies like RESTful calls, Websocket (socket.io) or traditional HTML server side rendering. As corollary I have robust knowledge of Linux servers management and Python application environment deployment. My particular experience makes me capable of autonomous development on small projects plus a great integration skill with teams on larger ones. An in depth knowledge of all development problematics makes me a competent Project Manager and technical advisor. ✎ Languages & Frameworks - Python : Django - PHP: Yii ☉Databases - PostgreSQL - MySQL, - SQLite, - MongoDB ☺ Frontend - Javascript, JQuery, Angular.js - HTML, CSS - Twitter Bootstrap ♨ Servers - Amazon EC2 - Heroku - Linode - Gentoo - Ubuntu - Fedora Core

    $27.78 /hr
    3,871 hours
    4.28
  6. Aaron Summers

    Aaron Summers

    Linux Cloud Engineer / 14 Years Real World Experience

    United States - Last active: 10 hours 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
    5,793 hours
    4.97
  7. Christian Walde

    Christian Walde

    Experienced Perl developer with focus on web apps

    Germany - Last active: 7 days ago - Tests: 5 - Portfolio: 1

    I am a very experienced Perl programmer with a guarantee for quality, speed and honesty. You can see my past experiences in the Resume tab as well as in my work history. As of now I am completely booked out, however I'm always interested in new projects. If you don't need my help immediately and would like to discuss a future assignment, feel free to contact me in order to work out when i can give you more time.

    $100.00 /hr
    1,843 hours
    4.62
  8. Valery V.

    Valery V.

    PHP / MySQL / AJAX / Smarty / Joomla / SocialEngine / WordPress dev

    Ukraine - Last active: 9 days ago - Tests: 4

    I am experienced full stack web application developer(over 8 years). I’ve created a number of complex systems including dating sites, social networks, e-commerce sites, inventory management systems, scheduling systems, forum applications, and internal organizational systems. I have Master Degree in Computer Sciences and strong technical background as well as a keen eye for design. My feedback is 5 stars because: • I always stick to deadlines, • I have an excellent communication skills, • I'm available almost 24/7 via Skype, • I have a stable internet connection, • I love to turn clients ideas into reality. Looking forward to a long term relationship.

    Groups: Bluehost Developers and Designers, SocialEngine

    $40.00 /hr
    3,884 hours
    4.87
  9. Adeeb A.

    Adeeb A.

    Quickbase Applications Architect

    United States - Last active: 3 days ago - Tests: 11 - Portfolio: 3

    -Over 12+ years of experience in IT concentrating on Database (SQL) and Quickbase development. Quickbase Expertise: -Systems Analysis and design -Process workflows -Dashboards and reports -Custom forms (JS, HTML) -Custom Coding -3rd party application integration (client and server side) -Quenect ODBC integration Other Programming:expertise: Java, JavaScript, PHP, SQL, Ruby, C++,C, VB Please invite me for an interview to discuss my skills and experience in more detail.

    $85.00 /hr
    3,953 hours
    4.25
  10. Boian M.

    Boian M.

    16yr exp - Linux Systems Architect / ISP / IT Consultant -

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

    * gathering customer's requirements (type of applications deployed) * specifying hardware * deploying (software and hardware installation, including in data centers) * technical writing on cloud-computing topics, security, High-availability, clusters and others * monitoring / profiling * management * architecture audits * virtual infrastructures based on KVM / OpenVZ / VMware / XEN / Sun Ray + Virtualbox * Fully-virtualized and HA architectures deployment (Proxmox, ESX, OpenStack) and network virtualization (Neutron); * network solutions based on Brocade / Cisco / HP / Mikrotik products * full internet provider development * providing adequate documentation in each stage (doc/pdf/Visio) of Linux/UNIX based systems, also managing small IT teams, looking for new challenging projects. * BIND, djbdns, mydns, ndns based DNS architectures; * Qmail / Exim / Postfix-based mail systems; * Websystems to include Apache / MySQL / PostgreSQL / PHP / Perl configurations; * Rails solutions; * Complete webhosting managment - Cpanel/WHCMS /Plesk etc.; * Backup solutions (EMC Retrospect, Open source solutions - Bacula, Amanda, ZRM etc.); * Cloud computing IAAS and PAAS(Amazon EC2, OpenStack) and related ecosystems (Ceph); * HA solutions : Pacemaker, Corosync, GlusterFS, MooseFS, DRBD, Ceph * Load testing (jMeter, Tsung, iozone, vdbench, ab, siege); * MySQL - single servers, Master/Slave configurations or Master/Master; * Tomcat/Resin based Java application servers; * Monitoring deployment and administration (Zabbix, Nagios); * Nagios / MRTG / Cacti monitoring and data acquisition; * Design/development and modification of PHP/Ruby/Perl-based web systems; * MVC framework development on Rais / CakePHP / Codeigniter; * Zibra, Zarafa, iRedMail, phplist, google apps, Also extensive experience in deployment and management of server configurations in data centers.

    $44.44 /hr
    6,406 hours
    4.97