Top Upwork Freelancers

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  1. Weipin X.

    Weipin X.

    Indie Freelancer

    China - Last active: 17 days ago - Tests: 1

    Specialized in human interface design, backend development and iOS app development. Human Interface Design ---- Keen on creating easy to use interface, have been practicing in this area for many years, was in charge of app design in quite a few projects. It's a habit for me to think about "user experiences" -- whether playing with various apps or using an ATM machine. Website Backend ---- From development to deployment, specialized in Django framework. Stacks include database, "Unix-like" sys admin and well-written Django helper libraries such as South, Tastypie, etc. Also have experiences on GAE, AWS, etc. iOS App Development ---- Not a fresh iOS programmer, started writing programs for the Mac platform when Mac OS X was merely 10.1 and Xcode was Project Builder. Workflow ---- For iOS app development, mockups will be built using tools like Balsamiq, to settle on an overall tone. And then, milestones will be set. Services like github is recommended, to make the code management and cooperation easy. Misc ---- - A Mac box is my major "workstation", testing devices include iPhone and iPad. - Projects list in "portfolio" are all my own stuff. For other projects, I would need client permissions of public listing. Please check my job history or ask.

    $30.00 /hr
    164 hours
    5.00
  2. Artur Dudnik

    Artur Dudnik

    Senior Javascript/.Net Programmer

    Russia - Last active: 1 day ago - Tests: 1 - Portfolio: 4

    Experience & Skills & Technology stack: * JS – Native, Node.JS, JQuery, ExtJS 10+ years * .Net C#, C++ (WCF, Entity Framework, SQL Server, Sync Framework, ADO.NET, DirectX, and etc.) 6+ years * SQL Server (T-SQL, Tuning) 10+ years * remote team management 6+ years * ASP.NET MVC from RC 5+ years * SVN, Git, CVS 10+ years * Business Intelligence (BI) OLAP 2 years * Dynamic Ax; CRM; SharePoint; AD 1 year https://github.com/Sigura?tab=repositories

    $49.99 /hr
    175 hours
    4.57
  3. Dmitry Sytchev

    Dmitry Sytchev

    Asterisk/Freeswitch/Kamalio expert, VoIP engineer, Linux administrator

    Russia - Last active: 16 days ago - Tests: 7 - Portfolio: 1

    I have more than 10 years of experience in installation and support of carrier-grade VoIP services based on Asterisk, OpenSIPS, Kamailio, Freeswitch and proprietary SIP/VoIP software. My professional interests are Callcenters, automated dialer systems and integration of VoIP software with company information flows. You can rely on my strong engineering and programming skills for projects starting from single VoIP server to a complete wholesale/carrier VoIP solutions including billing, call data analysis, security and fraud prevention. I have developed complete SIP solutions for VoIP carriers worldwide: Proxy/Registrars, IVR, prepaid systems, multi-tenant VoIP switches, hardware PSTN gateways (Cisco AS5300/5500, Audiocodes Mediant 2000, Quintum Tenor). I have experience in setup, administration and security of Asterisk, FreePBX, Elastix and FreeSWITCH PBX installations. As a programmer I use PHP, Javascript (both client-side using jQuery and Angular.js and server-side with node.js), Perl (system scripts/applications, Mojolicious webapps). I also have experience in development and administration of MySQL and Microsoft SQL Server databases. I'm experienced network engineer, skilled in routing and switching, general network architecture planning and deployment, network monitoring and security, including HA solutions (heartbeat/pacemaker). I use Zabbix and have some experience with Nagios and other monitoring software. I can also offer you consulting support in VoIP and network technologies.

    $33.33 /hr
    88 hours
    4.96
  4. Oleksii G.

    Oleksii G.

    WEB Developer/Network administrator- Ukraine

    Ukraine - Last active: 2 days ago - Tests: 8 - Portfolio: 14

    Reasons to hire me: Responsibility for the completed tasks to the client in the first place. Speed ​​of execution of tasks - maximal: - 40+ hrs/week online; - starting immediately; - concentration on job; Main skills Web programming: HTML, CSS, PHP, MySql; Web administration: Linux/Windows base servers. SSH, Cpanel, Plesk + Photoshop as bonus to web programming. Favorite CMS: Wordpress, Magento

    $33.33 /hr
    1,058 hours
    4.96
  5. Alexander Silenko

    Alexander Silenko

    Expert PHP Developer

    Ukraine - Last active: 4 days ago - Tests: 2

    Hello, My Name is Alexander. I'm professional web developer with 7+ years of working in commercial projects. For now I'm mostly specialising on Magento shops customisation and performance tinning. Also I have big experience in creation of custom web application on Zend and Yii Frameworks. Looking forward to work with you :)

    $32.00 /hr
    93 hours
    5.00
  6. Michelle H.

    Michelle H.

    Sr. Level Software Business Analyst and Project Manager

    United States - Last active: 14 days ago - Tests: 9 - Portfolio: 19

    Passionate about user drive design. Love great design that is perceived by the end-user as great design. Product Management, product development, UI/UX design including wireframes, primarily in healthcare related software development. Strong background at workflow optimization in applications. 11+ years in healthcare related technologies. Expert at client interviews, building user requirement stories, Agile planning, and working with development team to deliver milestones. Skills / Expertise: Rally Dev - Expert Version 1 - Experienced Jira - Working Knowledge Axure iRise Balsmiq 15+ years experience in corporate and non profit design (Photoshop, Illustrator, Fireworks), Skilled at short and long term project management. Proven success at turning new ideas into launched products through building successful cross-functional teams, fostering a culture of design-driven product development and user experience innovation. Able to work independently and in teams. Strong communication skills.

    $39.00 /hr
    63 hours
    4.92
  7. Faizan Shahid

    Faizan Shahid

    Expert Flash Animator, Concept Artist, Game Designer iOS and Android

    Pakistan - Last active: 13 days ago - Tests: 2 - Portfolio: 4

    An Animator, Concept Artist and Game Designer! He is armed with a Gatling gun of ideas. From complete game concepts to characters, weapons or armors you name it. Punctual, precise and proactive, in a nutshell Faizan is simply awesome! :D Quick Portfolio: https://www.behance.net/Faizans - Designed over 100 apps and games from top to bottom and worked with teams to help in many more. - Equipped and pro efficient in Photoshop, Flash, Sketchup, Premiere and Plenty others. - Does a quick concept sketch before starting any project to ensure efficiency and success. - Has a degree in architecture - Worked 3 years with Bro UP games as Creative Head. Enough said!

    $38.00 /hr
    219 hours
    4.96
  8. Nikolai L.

    Nikolai L.

    Senior Software Developer

    Belarus - Last active: 1 month ago - Tests: 4

    Having more than 6 years of enterprise development, I'm passionate about architecture and software design for complex solutions. I am happy to build great products considering all the aspects you need for success, from user experience and modern front-end to scalability and security of the back-end. Primary skills: ASP.NET MVC, Web API, NHibernate, Spring.Net, IoC, Templating, Node.js, Phonegap/Cordova, RabbitMQ. HTML5/CSS/Javascript, jQuery, Sencha Touch, Backbone, Bootstrap, LESS, Mustache etc. MS SQL Server, Apache Solr, Elastic Search, Redis, Couchbase, Mongo. Agile, TDD, DDD.

    $33.33 /hr
    333 hours
    5.00
  9. Gena Obernyak

    Gena Obernyak

    Front-End Development. HTML5, AngularJS, ExpressJS

    Italy - Last active: 25 days ago - Tests: 9 - Portfolio: 1

    I am 8 years experienced Front-End Professional. Mainly I am making: - Web Design / UI / UX / Wireframes - Full responsive and pixel perfect website/app layouts with semantic and clean code. - Advanced web applications on AngularJS. Main skills: - HTML5 / CSS3 / Twitter Bootstrap 3 / Foundation / Gumby - Full Responsive (Mobile, Tablet, Desktop, Large Desktop) - Semantic coding - JavaScript - AngularJS / Meteor.js / AJAX / jQuery / jQuery Mobile - Bower, Grunt, Karma etc. Back-end skills: - PHP / MySQL / Zend / Smarty / Symfony2 And of course: - Linux / Windows / MacOSX - Corel Draw / Adobe Photoshop - MVC / OOP - SVN / Git / Bitbucket / Github

    $50.00 /hr
    151 hours
    5.00
  10. Bryce Johnson

    Bryce Johnson

    JavaScript Developer

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

    Hi there. I'm a JavaScript developer by day (at Maternity Neighborhood) and a Node.js hacker by night. I'm currently seeking part-time contract front-end work. A little more about me. I am: - Handy with many major front-end tools (Angular, Gulp, Grunt, Bootstrap, Jade, JQuery, etc). - Experienced developing responsive UIs and debugging across browsers and devices. - So-so with server-side JS (Express), but pretty comfortable with Node.js generally. - A big fan of async JS, and familiar with a few Promise implementations (q, bluebird, ES6, JQuery) - Confident w/ my git foo, comfortable with advanced branching and deployment configurations. - Fairly dexterous with *nix, Bash, Vim and friends. - Very comfortable with Agile environment and tools. Check me out: Github: https://github.com/brycepj StackOverflow: http://stackoverflow.com/users/2472219/bryce-johnson LinkedIn: https://www.linkedin.com/in/brycepj Twitter: https://twitter.com/_devbryce

    $49.00 /hr
    141 hours
    4.97