Top Upwork Freelancers

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  1. Natalia Mazurskaya

    Natalia Mazurskaya

    Senior Java developer

    Sweden - Last active: 1 month ago - Tests: 1

    I have over 10 years of Java server-side and desktop oriented development including such technologies as Java servlets, Struts, JSP, FreeMarker, Tomcat, Jetty, JBoss, Hibernate/JPA, Groovy, Quartz, JDBC, OSGi, iText, multithreading, Swing/AWT. I'm common with web UI development using Javascript/HTML including libraries and frameworks like Backbone.js, Ember.js, JQuery. I have extensive experience with DBMS like Oracle, MySQL, PostgreSQL. I used to work in distributed and on-site teams using tools like Maven, JUnit, Jira, Redmine, Git, Mercurial, SVN, TFS. My completed projects include complex web user interfaces for addresses/geo-coordinates management service and health plan management system, enterprise scheduler, data load and conversion facility, mobile gaming backend and more.

    $25.00 /hr
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  2. Terry Van Buren

    Terry Van Buren

    Systems Developer: Windows Azure, C/C++/C#, and ASP.NET

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

    Award winning technology pioneer and inventor with a passion for performance. My focus for the past four years has been on Cloud Architecture using Windows Azure and Amazon. I have created two applications for my own company and migrated three existing applications into the cloud using Visual Studio, HTML5, CSS3, JavaScript, ASP.NET, C# and VB. Recipient of the 1997 Fujitsu President's Award for Technical Achievement. My patent was issued in December 2013 and is numbered US8599836. In 2008 I was one of the first in the world to terminate Microsoft OCS/Lync into a VoIP provider rather than a media gateway device; the solution was to convert the SIP handshake from TCP to UDP. Continue to discover challenges maintaining and enhancing legacy ASP.NET applications when not creating new products. Server-side systems development has always been my forte.

    $27.78 /hr
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  3. Kaze Bi

    Kaze Bi

    Web and Mobile Architect & Engineer

    United States - Last active: 9 days ago - Tests: 2 - Portfolio: 1

    I am a software architect and a senior developer with plenty of hands-on experience in designing and implementing complex and high-performing application of enterprise-quality grade. I have over 15 years of experience delivering desktop apps, web sites and services, and mobile applications for wide range of platforms including ASP.NET, PhoneGap and Xamarin. I can quickly understand customer requirements and constraints and provide a well-defined set of possible solutions and designs with recommendation of best-suited option, let client to make a well-informed decision, and help to deliver project along the lines of chosen solution. I am always committed to deliver responsive, user-friendly and high-performing apps within defined budget and time frame using cutting-edge technologies, tools and frameworks.

    $50.00 /hr
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  4. Oudin Manuel

    Oudin Manuel

    Senior Sysadmin & Script Developper

    France - Last active: 2 days ago - Tests: 2 - Portfolio: 3

    Senior Infrastructure & System administrator, working with Windows since NT4.0, I was an early user of PowerShell, and never got disapointed since it's release. I'm familiar user of Powershell for : - File Backup & Management - Data transfert from different sources (MySQL, SqlServer, WebServices, AD, Oracle, Xml/Csv/Txt) - Exchange & Active Directory Management & Analysis - Systems/Service checking and error reporting Other skills : - Linux Systems maintenance - VMware Automation (VM creations, Workflows) - Citrix Analysis & Maintenance scripting - Macro developper for Office products (Excel & Outlook mainly) I'm also giving trainning courses for any IT user, mainly in Excel Advanced use. My main goal is to give customers a ease of use in their daily work. Make IT easier on a daily basis. Most of my works consisted in repetitive tasks automation, Statistic tools, Data transfert scripting.

    $18.00 /hr
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  5. Sumit Oberoi

    Sumit Oberoi

    Chief Architect - Wegile

    India - Last active: 3 days ago - Tests: 5 - Portfolio: 16

    My name is Sumit Oberoi and I and the Chief Architect at Wegile. I have 15 years of enterprise technology consulting and business development experience across Commercial, Enterprise, SMB and Higher-Ed verticals in US, Canada, UK, Australia and Europe. I love driving innovation, I value creation and I can give accelerated growth to your technology goals. As a technology consultant, I have worked with more than 1000 CIO’s worldwide helping them select and implement large and complex enterprise technology solutions. Wegile build's online brands through trusted mobile apps and supporting web apps that help our clients achieve their business goals. Led by a team of 100+ technology and marketing expert’s, Wegile delivers full service products and digital marketing solutions for startups, small businesses and large enterprises across for its clients worldwide. We use modern technologies, build market-leading products, and adhere to high standards in terms of engineering best practices (continuous deployment, continuous integration, automated testing, etc). We build two main types of products: beautiful production apps built to support millions of users growing very rapidly, and hyper-fast MVP prototypes where speed is of the essence. Specialties: Mobile Application Development, Enterprise Technology Consulting, 
Enterprise Portals, Identity Access Management, Single Sign On, E-Commerce, 
Online Learning, Learning Management
, Enterprise Cloud Computing, Digital Marketing, Social Media Marketing

    $20.22 /hr
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  6. Marius Kurgonas

    Marius Kurgonas

    Professional IOS, Android, Windows Phone

    United Kingdom - Last active: 4 days ago - Tests: 4 - Portfolio: 5

    I am a passionate professional mobile developer doing end-to-end native and cross-platform applications. The apps i have developed throughout the years range from small one platform apps to a cross-platform secure and sophisticated enterprise scale solutions. Client satisfaction and deadline sensitivity with highest quality are my top priorities. I am best skilled at the following: Mobile development: iOS, Android Game development: Cocos2d, Cocos2dx Backend: Parse

    $36.00 /hr
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  7. Javier Frias

    Javier Frias

    IT- Java-Programmer

    Argentina - Last active: 27 days ago - Tests: 3 - Portfolio: 2

    Hello my name is Javier I live in Argentina, and since 2010 I've been working with java getting experience in real cutting edge programmers team. I love working in a team, collaborating and contributing with the team success and achivement of goals. In each work experience I had the oportunity to work and learn different kind of technologies, that increased my experience in differents industries such as Insurance,Tourism, Metallurgical, and now Retail. I love learning new technologies and growing as a professional java programmer. I am able to be adapted and be opened to new proyects and challenges. Best Ragards Javier Frias

    $28.00 /hr
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  8. Timur I.

    Timur I.

    Web Developer, Software developer

    Russia - Last active: 1 month ago - Tests: 6 - Portfolio: 22

    I specialize in architecting, designing and developing state of the web-applications on various programming languages (PHP, Python, Java, C++, JavaScript) including database designing (MySQL, PostgreeSQL, MSSQL). I can develop web-site, server-side application or client application of any complexity. I have great experience in markup languages (HTML, XML) and in CSS. In development process I can use libraries, frameworks and CMS (jQuery, Yii, Wordpress, Joomla, OpenCart mostly).

    $13.00 /hr
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  9. Adiyat Mubarak

    Adiyat Mubarak

    Python / Django Developer

    Indonesia - Last active: 19 days ago - Tests: 3 - Portfolio: 1

    I have professional experience in backend web and API development using Python with following Frameworks: - Django Framework - Django Rest Framework - Flask (for small usage) With client side development using: - HTML/CSS - Javascript including jQuery - Twitter Bootstrap Server Environment: Nginx, Uwsgi Operating System: Windows, Linux (Ubuntu) Additional skills: JSON, AJAX, Strong OOP Concept, Design Pattern, Git Previous background programing skills: Java, Java Web development with Servlet and native Android deveopment.

    $18.00 /hr
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  10. Gregory Rusakov

    Gregory Rusakov

    Software Developer

    Russia - Last active: 4 days ago - Tests: 10 - Portfolio: 1

    I love to develop and create a clear code to make people happy! I really do it with PHP (with Yii framework, Joomla, OpenCart etc.), JavaScript, C#, and also 1C (for ERP). I also love to translate foreign websites to Russian language. It's kind of relay or kind of relax to keep my mind fresh :-) P.S. I am newbie here, so I really cut my prices down for the 10 first projects. Don't miss a chance!

    $6.00 /hr
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