Top Upwork Freelancers

More options
Clear all filters
  1. Doug Fluckiger

    Doug Fluckiger Agency Contractor

    Expert designer for iPhone, iPad, and Apple Watch

    United States - Last active: 3 days ago - Tests: 4 - Portfolio: 23

    NOW SPECIALIZING UI / UX FOR APPLE WATCH. As a registered Apple developer, I develop advanced user interface / user experience design in the emerging Apple Watch platform. More than simply a wearable, Apple Watch represents a new frontier in UX with haptic feedback, Glances, Short and Long Look capabilities and more. Got an idea for an iOS or Watch? Let’s make it amazing. I am an award-winning UI / UX designer for iOS and Android, having designed apps for the medical industry, social media, hardware control, and more. Not only do I do gorgeous, intuitive UI design, I bring to the table an understanding of how real people interact with technology. I listen thoroughly to my clients' needs, and work with them to create beautiful, high-functioning apps with a UI well above the competition. Over the past two years I have earned rave reviews with a number of online clients worldwide. Not only do I do great work, I'm fast, budget- and detail-conscious, and friendly; and I actually return phone calls. If you’ve got an idea, I can help you make it stunning. Let’s talk!

    Associated with: Silver Creek Studio

    $66.67 /hr
    1,125 hours
    4.92
  2. Marcin Szczepanski

    Marcin Szczepanski Agency Contractor

    Senior Ruby on Rails developer

    Poland - Last active: 1 day ago - Tests: 9 - Portfolio: 10

    I have been developing web applications as a hobby, before it became my profession. I am a young developer but with solid experience already. I was involved in the creation of a number of interesting projects/applications. I am constantly broadening the scope of my skills and techniques. I like working in team and I'm always willing to share knowledge.

    Associated with: Polcode

    $32.00 /hr
    4,023 hours
    4.77
  3. Roman T.

    Roman T. Agency Contractor

    UNIX and security expert, network and system administrator

    United States - Last active: 2 days ago - Tests: 9 - Portfolio: 3

    I'm a problem solver with technical and managerial experience, based out of Los Angeles. I love solving complicated problems by building elegant solutions and seeing the impact it has on a business's growth. I've always been interested in the technological field, specifically in information security and automation, which has made a huge impact on my work experience. However, I recently found myself involved in start-ups and helping with management, risk assessment and developing business strategies. I offer the following key services: o Security Audit o Network and Systems Administrator Services o Information Security Services o IP-PBX and VoIP softswitchs: installation and maintenance o Software development: Web, desktop and server applications o Complex solutions for business-process automation Experience Platforms: Cisco (routers, switches and ASA), Huawei (L2&L3 routers and switches), MikroTik, Ubiquiti, OpenStack. OSs: UNIX (FreeBSD, OpenBSD, *BSD, Solaris), Linux (Debian, Ubuntu, Kali, Gentoo, Red Hat, SuSe, uLinux, ASP, Mandrake, Fedora Core), MikroTik's RouterOS, VRP (Huawei), Windows 95/98. Languages: C/C++, UNIX Shell Scripting (Bash, Shell, sed, awk), Delphi (Pascal), Perl, PHP, Python, SQL, T-SQL, Assembler (Intel and AT&T SysV/386 syntax), GTK+ applications, Erlang, HTML, CSS, JavaScript, JQuery, JSON, REST API, XML, XSLT, DTD. Databases Engines: PostgreSQL, MySQL, Oracle, SQLite, Mnesia, MS Access, Sybase, DB2. Networking: TCP/IP, ISO/OSI, IPv6, Ethernet, VLAN (dot1q), ARP, VRRP, CARP, MPLS L2, MPLS L3, STP, GVRP, PPPoE, VPN, PPTP, L2TP, IPSec, OpenVPN, SNMP, SSH, XMPP, SIP, h323, BGP, OSPF, RIP, IRC, AJAX, Netflow. Virtualization: OpenStack, XEN/Server, Qemu, VMWare, FreeBSD Jail, Chroot. CMS: WordPress, Bitrix, osCommerce, Joomla, RoundCube. Panels: CPanel, Plesk, ISPManager, Webmin.

    Associated with: IntLös

    $35.00 /hr
    275 hours
    4.92
  4. Ara Sadoyan

    Ara Sadoyan Agency Contractor

    Linux, Hadoop, Clustering and Cloud Computing expert

    Armenia - Last active: 11 days ago - Tests: 5 - Portfolio: 4

    I'm 12 years experienced Linux Administrator. I'm professional in: Design, planning and deployment of Hadoop clusters, high available Linux web farms, NoSQL clusters (Riak, Cassandra, Couchbase, CouchDB). Design and deployments of public/private cloud infrastructures. Linux Networking & Security Concepts. Design, deployment and administration of multi node web farms. Linux Clustering and H-A ,Service level load balancing and clustering Linux services (WEB,MAIL,PROXY,DNS,LDAP,SAMBA etc) OS security concepts, Monitoring tools (Nagios, Munin, Ossec, SNMP etc) Bash scripting MySQL Administration, Server optimization Configuration and optimization of JVM`s and Java Application Servers Virtualization solutions (VMWare, XEN, CITRIX etc) And more !

    Associated with: NetAngelS

    $33.33 /hr
    3,510 hours
    4.96
  5. Michal K.

    Michal K. Agency Contractor

    PHP Programmer

    Poland - Last active: 1 day ago - Tests: 7 - Portfolio: 6

    While still at university I started working as a software engineer and PHP programmer. For over 5 years my theoretical knowledge in programming and database design has expanded, accompanied with practice in developing applications in Codeigniter, Kohana, Zend, MySQL and Doctrine 2. With my sound working knowledge of HTML/DHTML, CSS, Mootools and Ajax I also handle Frontend programming with ease. I'm familiar with Symfony 2 concepts and I'm eager to use that knowledge on a larger scale. By hiring me you are sure to get a skillful individual who can anticipate problems and address them properly when they arise. You are on the right track to obtain what you need when you need it plus a few valuable insights into the overall concept of your project.

    Associated with: Polcode

    $35.00 /hr
    5,332 hours
    5.00
  6. Mohamad E.

    Mohamad E. Agency Contractor

    Google Apps Script & Excel VBA Expert (Google Spreadsheet/Drive/Gmail)

    Egypt - Last active: 5 days ago - Tests: 9 - Portfolio: 7

    I am one of the top freelancers on oDesk working on Google Apps & Excel. As an experienced software engineer & MBA holder; over the last 7 years, I have been utilizing my Business background and software expertise to add value to my clients by automating their processes and providing them clear dashboards that strengthen the decision making processes. I focus mainly on Google Apps & MS Office integration, automation & Reports generation. However, clients who trusted my skills asked me to extend the set of services I provide them to include Wordpress & Javascript as well. Projects Examples: - Dashboard to track Sales activities (Lead generation, Monthly sales per agent, lost sales, commissions, sales agents efficiency, ...etc.) - Automatic posting to Wordpress according to received emails. - Web Scraping - Proforma Financial Statements creation - Workflow automation - Ticketing Systems - Invoicing Systems - Google Drive Manipulation I do this by programming and linking MS Office apps (Excel, Access, Word, Powerpoint) or Google Apps (Spreadsheets, docs, Drive, Email, Contacts). I worked on 100+ projects (On ODesk and outside ODesk) to improve my clients' processes, and all of them provided exceptional feedback. Please check my portfolio and previous jobs feedback to know what value I added to them.

    Associated with: Proserve

    $32.00 /hr
    476 hours
    4.99
  7. Konstantinos Paraskevopoulos

    Konstantinos Paraskevopoulos Agency Contractor

    vTiger CRM ERP Expert

    Greece - Last active: 1 day ago - Tests: 1

    I am an Internet Technologies and Software engineer, specializing in Vtiger CRM / ERP planning, development and implementation. My 8 years experience in Internet Technologies and 5 years focusing on vtiger allows me to implement any vtiger customization. I have implemented various integration projects of vtiger with 3rd party applications using WebServices, such as Joomla, Jomres, Wordpress, Virtuemart, OsCommerce and more. The strong background on business process re-engineering and business process integration allows me to easily understand the business needs on their CRM / ERP application to ensure the customization success. In the past 5 years i have worked with various companies in different industries around the world to help the design and the implementation of their CRM / ERP systems. Integrating their individual business processes to the vtiger platfrom, i have developed many modules for vtiger in order to "digitilize" companies specific processes and workflows to Vtiger platform. My philosophy for CRM / ERP systems is summarized in the following principle: "You cannot manage something that is not measurable". Towards this principle i assist my clients develop a system where they can track down all the information flow produced by their business processes and also the tools to streamline them, providing all the necessary information (BI) to the right department / user. I enjoy helping companies create their own tailor-made software that reflects their real needs, allowing the business to effectively utilize their resources and automate trivial processes thus saving time and money, that they can invest in growth (that is after all what software can provide time / money).

    Associated with: Target Integration Ltd. Agency

    $100.00 /hr
    284 hours
    4.94
  8. Angeloluca B.

    Angeloluca B. Agency Contractor

    Google Apps Script / Node.js / Javascript Development

    Italy - Last active: 1 day ago - Tests: 3 - Portfolio: 6

    I like to understand, question and solve problems. I especially focus on building integration and automation tools, whatever can help people and systems to collaborate and behave smartly. I especially focus on Javascript, Node.js, Google Apps Script flexibility and Google App Engine powerful capabilities, but Python and Java are good friends too. I have developed a wide range of dashboard, automation and mining tools for startup companies and businesses exploiting the smartness and power of these tools. I built an extensive experience in data mining, recovery and automated analysis for business intelligence and bioinformatics. (2 years) - Cloud Development & Web Collaboration : Google Apps Script , Javascript, Node.js, Google Clous Products - Software Development : C/C++, JAVA, C#, PHP - Data Mining : Excel, Extraction & Recovery,Database MySQL/Oracle PHP/PERL/Python for scripting and Web Applications(3 years) JAVA/C# enterprise development for Web Services, SOA and Integration (4 year of practice) C++ distributed and network software development (3 year of practice) C++ network management development (2 year of practice) C++ system programming and low-level coding (2 year of practice)

    Groups: Crossrider

    Associated with: Web HQ

    $44.44 /hr
    645 hours
    4.98
  9. Roman Sereda

    Roman Sereda Agency Contractor

    Cloud Architect - DevOps

    Ukraine - Last active: 2 days ago - Tests: 6 - Portfolio: 5

    System and network expert with strong work ethic and large experience in various IT fluids. Team player in big and small project - join fast and effective cooperate with different professionals. 13 year - total IT experience. 7 year - network and system administrator 5 year - Cloud expert 3 year - Streaming expert Last two year - active freelancer experience Streming Wowza, nginx-rtmp Scripting Python,Chef, PowerShell, PHP Deployment Chef, Capistrano, Puppet MySQL, Cassandra, MSSQL, Postgresql, MongoDB CouchDB WWW Apache,Tomcat, Nginx, IIS, LightHTTPd, HAProxy, Squid, Mail Sendmail Exchange Postfix Qmaill pop3 imap Monitoring Nagios Casti Zabix Windows Server 2008 R2 2003 2000 NT, Linux Debian Ubuntu RadHat CentOS SUN Oracle Solaris, BSDi, FreeBSD NAS, SUN, iSCSI, Big data backup DNS, DHCP, SMTP, SNMP H323,SIP, Asterix, Elastic, FreePBX, MySQL MSSQL Oracle Virtualizations. VmWare VSphere ESXi XEN KVM Project manager, Web Optimization, High Availability, Load Balancing Live Streaming solution. Video on Demand, IP TV, Media Server,

    Associated with: emyoli Agency

    $44.44 /hr
    561 hours
    4.88
  10. Vadim Sudzenka

    Vadim Sudzenka Agency Contractor

    IT Engineer, manager / Systems Engineer Microsoft

    Czech Republic - Last active: 1 day ago - Tests: 9 - Portfolio: 14

    • Successful background in system administration, top-down networking implementation, system analysis, technical support, optimization and troubleshooting.• Strong experience in implementation of large-scale networking solutions, based on different operating system technologies, various hardware and software.• Experienced Engineer specializing in analyzing and solving complex IT problems.• Good understanding of ITIL principles (passed ITIL v3 Foundation test).• Independent, resourceful and detail- oriented individual, able to quickly grasp new technology and work effectively in the team demonstrating good organizational and interpersonal skills• MCITP Enterprise Messaging Administrator on Exchange 2010•MCSE holder• MCITP Windows Database Administrator SQL2005 (MCDBA) • LinkedIn profile http://www.linkedin.com/in/vsudenko Microsoft Windows Server 2008/2003/2000/NT • Linux (Unix, Aix, Solaris, HP-UX) • MS Exchange, Lotus, Web, FTP, Proxy servers, MS IIS, MS Project, Tivoli• MS Active Directory• TCP/IP, LAN, WAN, VPN, DNS, DHCP• Virtualization technologies (VMware, Virtual PC).• Citrix MetaFrame Server - administrator• Backup systems (VERITAS Backup Exec, ARCserve, IBM Tivoli Storage Management) Good knowledge MS SQL 7.0 - 2012, stored procedures, backup, DTS, Jobs, restore from Log, etc.

    Associated with: Tower Group

    $30.00 /hr
    6,353 hours
    4.97