Top Upwork Freelancers

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  1. Drew Ulmer

    Drew Ulmer Agency Contractor

    [Upwork Top 5 Percent] Professional Rails Developer

    United States - Last active: 03/20/2014 - Tests: 4 - Portfolio: 6

    When you hire me, you're hiring a top 5% Upworker with multiple successful projects and universally happy clients. I am an expert Ruby and Rails developer with more than 6 years of successful projects with Ruby on Rails versions 2.3 through 4.x. I enjoy working on everything from ecommerce to line of business applications and I specialize in identifying and fixing security issues. I can occasionally be found on the #rubyonrails freenode IRC channel and my github can be found under the username latortuga. I have contributions to major open source projects including Ruby on Rails, Devise, ActiveAdmin, cache_digests, warden, spree, and zeus. I am generally interested in Ruby or Rails development proposals, provided they include information about the actual project and not merely a list of skills.

    Groups: Twilio

    Associated with: Unabridged Software

    $150.00 /hr
    1,096 hours
    4.98
  2. Rubaiet M.

    Rubaiet M. Agency Contractor

    Full stack PHP developer

    Bangladesh - Last active: 1 month ago - Tests: 2 - Portfolio: 8

    I am a Web Application Developer, working with PHP since 2006 with several agile, Saas web application projects. Expert on OOP MVC Design Pattern specially in CodeIgniter, JQuery, Ajax. Expert, Ethical & Experienced - these might be the reasons for select me. Solid experience on SMS gateway API and applications like Twilio API, OpenVBX, Zencart, Opencart. My favorite task is develop custom plugins for applications. Favorite techniques/tools: - Object Relational Mapper (DataMapper ORM) - CRUD - SVN - Git Have huge experience in design and integrate payment gateway APIs and applications like: - Moneybookers - PayPal - Inpay - Barclaycard ePDQ - Authorize.net - NMI - Sagepay - Zipzap - ukash - Qiwi - OpenGateway - and many more!

    Groups: Twilio

    Associated with: PHP Players

    $44.44 /hr
    409 hours
    4.92
  3. Shaharyar H.

    Shaharyar H. Agency Contractor

    Salesforce Certified CRM Expert - Top Position in Salesforce

    Pakistan - Last active: 1 day ago - Tests: 6 - Portfolio: 15

    Over the last 10 years, I have analyzed, designed and developed a wide range of business systems and applications. My profile is top ranked on Upwork as Upwork has certified me as one of the highest performing freelancers around. I am a Salesforce.com certified developer, administrator and consultant with over 200+ successful implementations worldwide. My major expertise is in the following areas of Salesforce Development Services:- - Apex Classes - Apex Triggers - Visual Force pages - Force.com Sites - Integrations (WSDl / Json/ XML) - Rest API - Web services - Developing AppExchange Products - J Queries, Java Scripts, NodeJs, Angular JS - Payment Gateway integration with Salesforce Salesforce Integration Services:- -Integration of Salesforce with external web and desktop apps. -Develop custom in Salesforce to be used by other apps. - PHP website integration with Salesforce - Wordpress to Salesforce integration and plug-in development -.Net and Java Application integration with Salesforce - Native Android & iOS app development using Salesforce API and data Administration and Customization Services:- - Configuring the Vanilla Salesforce.com - Object/Field Creation - Setting up Users, Roles & Profiles - Creating Workflow Rules - Writing Validation Rules - Creating Page Layouts - Loading data via Data Loader & Jitterbit Data Loader - Amazing analytics by creating various Reports & Dashboards - Sharing Rules - Views / Lookup / Search - Chatter Functionality - AppExchange Tools - Home Page Components - Multi Currency - Data Cleansing - Data Entry - Data Research - Setting up Campaigns & Email Marketing Tools I WILL ENSURE YOU MY BEST SERVICES FOR YOUR JOB.

    Groups: Microsoft Certified Professionals, salesforce.com...

    Associated with: S3Technology

    $25.00 /hr
    7,451 hours
    4.79
  4. Luong T.

    Luong T. Agency Contractor

    Delphi,Web,C#,NET,PHP,RoR,C/C++,Window, Android, IOS, VoIp, OpenCV

    Vietnam - Last active: 1 day ago - Tests: 17 - Portfolio: 9

    - I am an engineer IT Programmer with over 15+ years experience program and develop, fluently language programmer (Pascal, C/C++, Object C, Php, C#, Java, Perl, Php, Web Application, Network Programming, HTML/HTML5,XML,CSS,Javascript, Jquery, jquery plugin, - Opensource wordpress, joomla, drupal, OpenCart, Xcart, eShop, Web.Net,, ..etc) and use well IDE (Eclipse, Visual Studio 2008/2010/2012/2013/2015, Nokia Qt develop, Vim, Netbean, IntelliJ IDEA, Xcode) to develop application the fast and best. - My skill is coding, good thinking algorithm, process flowcode and my knowledge about IT area very good to support for working. I can do and understand clearly many OS(Window, Window Phone, IOS, Linux, Android, Linux Kernel, Linux Embedded, Window Mobile, Image/Video processing, VoIP, OpenCV) and Database System(MS SQL 2000/2005/2008/2012, PostgreSQL,MySQL, MongDB, FireBird, foxpro, IBM DB, Oracle, No SQL - I also joined to design/work and completed many large project with position team leader, coder). Please contact me i will show to you all previous my works. - Reading and understand new technology very quickly and apply to work well.

    Groups: Bluehost Developers and Designers, Crossrider...

    Associated with: KPT

    $17.22 /hr
    4,646 hours
    4.73
  5. Shahzad Majeed

    Shahzad Majeed Agency Contractor

    Expert Mobile Developer (iOS, Android | Java, iPhone, Objective-C)

    Pakistan - Last active: 18 days ago - Tests: 5 - Portfolio: 11

    *** Certified iOS/Android Mobile app developer*** I have 5+ years of professional development experience in Android and iOS/iPhone/iPad applications development (from small to large scale business apps). Skill Set: * Android Applications & Games * Android SDK & Android Studio/Eclipse * iPhone Applications & Games Development * XCode & Objective-C (Development, Testing, Debugging, Instruments, Deployment) * MVC * iOS & Android Games using cocos2d , cocos2d-x * In-App Purchases * Push Notifications * Smartfox Server * Svn, Git, Github, Bitbucket, Testflight I have worked with some of the best teams in the world. * DraftKings, Inc ( http://www.draftkings.com ) * IDEO ( http://www.ideo.com ) * MotionMathGame ( http://motionmathgames.com ) * Sesame Street Inc. ( http://www.sesamestreet.org ) * Haptify Inc. ( http://www.haptify.com ) * Bitzer Mobile. ( http://www.bitzermobile.com ) * Rocklive Inc. ( http://www.rocklive.com ) * Zaviyaa ( http://www.zaaviya.com ) Projects: Some of the projects (there are some I cannot mention due to NDA) * https://itunes.apple.com/us/app/draftkings/id710535379?mt=8 * https://itunes.apple.com/us/app/rocklive/id577357879?mt=8 * https://play.google.com/store/apps/details?id=com.motionmath.fractions# * https://itunes.apple.com/us/app/motion-math/id392489333 * https://itunes.apple.com/us/app/another-monster-at-end-this/id473095033?mt=8 * https://itunes.apple.com/en/app/balloonimals/id307459878?mt=8 * https://itunes.apple.com/us/app/elmo-calls/id467703220?mt=8 What are you looking for ? * Self-motivated * Responsible * Daily code submission & progress report * Active communication through Skype/Email * Always achieve goals that have been set * Love coding and always take pride in my work. * Healthy technology discussions. https://pk.linkedin.com/in/shahzadmajeed I would love to hear from you to get started !!!

    Groups: BoonEx, Twilio

    Associated with: Smart Innovia Solutions Pvt. (Ltd)

    $35.00 /hr
    32 hours
    5.00
  6. Arpan aggarwal Agency Contractor

    proficient in PHP,cakephp,python,Wordpress

    India - Last active: 3 days ago - Tests: 2

    I have a diverse experience of working on web and desktop applications for over 5 years now. My web expertise ranges from web implementation through PHP, wordpress, cakePHP, RoR, JS/JQuery, SQL to web promotion strategies such as SEO, SME etc. I am well versed with OOAD & product life cycle and have good hands on experience of working with major product dev companies over the time. I am a qualified individual from top rung Indian engineering institute who prefer to work on per project/client basis and ensure the best of quality in the least of the time estimates.

    Groups: Twilio

    Associated with: Enbake Consulting Private Limited

    $18.00 /hr
    1,260 hours
    4.91
  7. K D.

    K D. Agency Contractor

    Salesforce.com, Force.com, Apex, Mobile App principal Consultant

    India - Last active: 1 day ago - Tests: 1 - Portfolio: 2

    It's been over 7 years, since I have been doing Salesforce.com, Apex, Force.com, VisualForce, Communities, Mobile 1 and Web based apps including sites for any size of company. Best part to work with us is that we just don't do coding but get ourselves into your business and suggest what is the best. You can see some of our customer Reviews here: https://appexchange.salesforce.com/listingDetail?listingId=a0N30000009xaPUEAY My core competency lies in complete end to end understanding of business process, understanding of Goal and then customisation and development. We have worked with many Salesforce partners also to support them in their initial stage, or extra help to achieve the deadlines. At SFclouds, our adept professionals are veteran in this particular genre and assisting the clients often in the development and installation of their customised applications. The finely crafted and created applications at SFclouds are the sheer blend of contemporary technology and unsurpassable expertise that further inspire our counterparts in the domain of our operations. By putting secure platforms into the action, SFclouds' experts are consistently emerging with cost-effective solutions that couldn't be availed anywhere else in the market. Thus, simply approach SFclouds' professionals if you're seriously planning to get the tailored applications made to boost your business growth.

    Groups: salesforce.com, Twilio

    Associated with: SFclouds Technologies Pvt Ltd, SFclouds Technologies, SFclouds Technologies, SFclouds Technologies

    $30.00 /hr
    3,541 hours
    4.89
  8. mohammad kamruzzaman

    mohammad kamruzzaman Agency Contractor

    Full stack web developer and VoIP Engineer, FreeSWITCH, ASTPP,Kamailio

    Bangladesh - Last active: 1 day ago - Tests: 2 - Portfolio: 2

    i am a full stack web developer and server administrator (FreeSWITCH) i have experiences on Django (python), Codeigniter (php), MongoDB, ElasticSearch, postgres, redis, rabbitMQ, celery, mysql, nodejs. you can hire me if you need to implement a distributed VoIP enabled service based on freeswitch/kamailio that is ready to scale. i am also doing newfies-dialer customization and maintenance for a long while. and also i will take projects like PBX, IVR, autodialer development. i have open source project customization experiences, for example, FusionPBX,Newifes-dialer,Astpp,vBilling,kazoo, Kannel

    Groups: Twilio

    Associated with: DT software house

    $44.00 /hr
    2,886 hours
    4.68
  9. Rowan Bas

    Rowan Bas

    Research and Data Entry, Quickbooks-PDF Bank Statement Reconciliation

    Philippines - Last active: 1 day ago - Tests: 4 - Portfolio: 3

    To spend full time working from home by providing services on any of the following job categories: Administrative works, Data Entry, Research, Bookkeeping and Accountancy, and Writing. Have long years of experience in office works.

    Groups: Adobe Certified Experts, Appcelerator Certified Developers...

    $3.00 /hr
    13,133 hours
    4.90