Top Upwork Freelancers

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  1. Jeffrey Santiago

    Jeffrey Santiago

    Expert Web Service/API Programmer

    Philippines - Tests: 1 - Portfolio: 4

    A versatile OOP programmer for over 5 years that has been working on different platforms such as IOS,Android,Web and Application Servers. A fully experienced API developer using different known protocols such as but not limited to SOAP,JSON or TLV over REST and XML-RPC. A Cryptography and Security Expert that is very familiar with industry standard security protocols such as RSA,PGP,AES,3DES,SSL/TLS etc. Well versed in the development of systems using different telecommunications protocols such as SMPP, USSD etc. and Banking protocols such as ISO-8583 and is experienced in Payment Card Industry Standards such as EMV, Magnetic Stripe and many more.

    $16.67 /hr
    0 hours
    5.00
  2. Vladimir D.

    Vladimir D.

    MediaIn.mk

    Macedonia - Tests: 4 - Portfolio: 1

    Our goal is to provide solutions for improving our customers working processes, enabling efficient use of the Information Technologies, to design a unique visual language that translates your passion into reality and to promote that vision to the Internet public. Think outside the box and let us provide you with a unique user experience for increased customer loyalty, by standing out of the crowd and get a turnkey solution for your business. MediaIn is a software development company since 2009. In order to comply with our clients needs we provide a package of integrated IT services that contains almost everything what is required for a modern business to stay competitive and on top. Custom software design and development, Technical support, Software testing and assurance, Reverse engineering, Embedded applications. We provide maintenance and development of large-scale web-applications for anyone, small or large businesses and individuals, and not just specified implementation, but support until the product can become self maintainable and supports it's own growth. AMP: PHP(Kohana framework), ajax, jquery, apache, web-services\SOAP. C#, C++, embedded C, ASP.NET, SharePOINT, LINQ, MVC.NET 2FRAMEWORK, AJAX.NET, Web Forms, Web Services, Windows Forms Programming (C#), Microsoft Visual Studio.NET 2010, 2008, 2005, 2003, Nlog, Log4Net, NUnit, Spring.NET, Telerik Controls, Telerik Report, DevExpress Controls, Crystal Reports. Mobile platforms: Android, Android OS, Windows MOBILE. Database: MSSQL, MS ACCESS, MySQL,ORACLE.

    $24.44 /hr
    5 hours
    5.00
  3. Alejandro Diaz Betancourt

    Alejandro Diaz Betancourt

    Architect - Software Engineer, ASP.NET, C#, AJAX, Spring, Java, Flex

    Colombia - Tests: 4 - Portfolio: 6

    I'm a Systems Engineer graduated on March 2002, Over the last 8 years I have developed web applications using Java and Microsoft .NET Framework, for different companies in my country. My experience began coding web applications on Java, JSP and connection with Postgres in a company named Azen Ltda. Then, I had the oportunity to teach a web application's developing course that included Microsoft .NET and Java. After that, I continue working with a company named Princeton S.A. in the development of web application modules for their product, that application involves Java, Struts Framework, JSP, AJAX, Flash and connection with Postgres. Finally, over the las 3 years, I have been working with a company named Pragma S.A. (http://www.pragma.com.co) that sells customized web application for big companies on my country, my function has been designing and developing web applications with Microsoft .NET Framework 2.0, AJAX.NET, Spring.NET, Telerik, Oracle and applications with Java, Spring, Hibernate, RichFaces, MySQL. I have focused in designing robust applications applying good patterns and practices in software development, I have used J2EE patterns, MVC, IoC with Spring, Microsoft Application Blocks. I have gained good skills in software architecture. I'm interested in begin working with companies on oDesk, gain more experience and give from me all that I have learned in my professional life. I want to develop software that allows me to learn new technologies, gain more experience, make good architecture designs and apply good programming skills.

    $22.22 /hr
    0 hours
    5.00
  4. Dmitrii Nikitenko

    Dmitrii Nikitenko

    Unity3D, PhotonServer, C#, Android, t-SQL

    Russia - Tests: 2

    I am a Unity3D missioner with more than 6 years of experience in game development :) Also I love using Photon Server framework for designing server-side architecture. My preferable language is C# (C Sharp). Feel free to ask questions, I will gladly help you to save the world from destructive forces ;) • A Specialist degree (Bachelor + 1 class) in Applied Math (Mechanics and Mathematics Dept.) • 6 years of Unity3D game developing and optimization including the mobile platform (Android) • 6 years of C# .NET Framework 2.0-4.5 experience • Free-to-play games developing experience • Excellent OOP Skills including common design patterns • Experience with multithreading and async/await in C# • Software engineering best practices • Create and maintain technical documentation • Experience with Agile methodologies: Unit testing, Continuous Integration, TDD • Networking and client-server projects development, a lot of Photon Server/PUN/Chat experience • Microsoft SQL 2008 and above as MMO server backend using CLR and more. • Excellent knowledge of UNIX and Linux operating systems, I know a little ANSI C • Experience with Windows, Android, Webplayer platforms Examples pack one: http://cv.mehanos.ru/mehanos Examples pack two: http://cv.mehanos.ru/rb My full resume: http://cv.mehanos.ru/ pictures and proofs are included Skype: kembl07 I am looking for a full time position as a Game Developer in a western European company dealing with Unity gamedev. With relocation. I like solving tasks in creative way related to Physics and Math (for example vehicle parts behaviour including wheel), building Seamless map algorithms, Networking, Enemy systems and AI pretending algorithms and anti cheat systems, game maps optimization, and Editors tools. Also I am good at planing and writing technical specification for new features or parts of a project. Having said that I did not mean that I wish some special tasks, routine is also mast to be done by someone :) I like describing AI-like behavior, server side coding, implement vehicle systems, working with 3D geometry, attaching third party frameworks in to the current projects, networking and anti cheat systems.

    $25.00 /hr
    0 hours
    5.00
  5. Svyatoslav Tiunov

    Svyatoslav Tiunov

    Full Stack Web Developer

    Russia - Tests: 4

    I have about 5 years experience in web-based business-intelligence platforms development. Previously I had been working in Prognoz (http://www.prognoz.com, international software corporation based in Russia). About skills: Backend: C# (incl. ASP.NET WebForms, ASP.NET MVC, Entity Framework, ITextSharp, and many other frameworks and libraries) Frontend: HTML, CSS, JavaScript (incl. jQuery, Dojo, Prototype and other) DBs: Microsoft Sql Server, Oracle

    $11.11 /hr
    2 hours
    5.00
  6. David Knell

    David Knell

    Senior telecoms developer/CTO

    United States - Tests: 2

    I've been developing software commercially for more than a quarter of a century, both as an employee of large organisations (IBM) and, to a greater extent, as my own boss. I've built and sold two businesses along the way, learning a great deal from having done so. My focus has been on telecoms. I developed TDM IVR systems based around Aculab and Dialogic cards in the late 1990s, and have, more recently, been involved in developing IP solutions using Asterisk, Kamailio and FreeSWITCH. These have included an IP Centrex platform (Asterisk and SER), a carrier-grade softswitch (FreeSWITCH) and various IVR solutions (Kamailio and FreeSWITCH). I'm fluent in a number of languages, including C, PHP, Perl, C# and Javascript, am happy to develop on Windows or Linux and have been using Agile development methods - in particular, release early and often - since before the term Agile was coined. I'm experienced with managing small teams of developers, and understand the importance of delivering the agreed product on time and within budget.

    $75.00 /hr
    3 hours
    5.00
  7. Alexey P.

    Alexey P.

    Java/Android/SQL/Web Developer

    Russia - Tests: 3 - Portfolio: 3

    During last three years I develop enterprise web-application using JavaEE technologies. Working on projects, commonly I have used products of IBM (WebSphere AS, WebSphere MQ, IBM DB2), but I have an experience with Tomcat as application server and Oracle and Firebird as a RDBMS. Also, I have a lot of practice using Delphi as a tool for developing of Windows applications as rich client for databases and user interfaces for electronic equipment. I am looking for an opportunity to develop a web-based software in conjunction with mobile applications and databases.

    $10.00 /hr
    0 hours
    5.00
  8. Ahmed Zaalan

    Ahmed Zaalan

    Software Developer

    Palestinian Territories - Tests: 3 - Portfolio: 2

    I have been doing software development for over 5 years, including web development for the last 2 years. I have worked with various technologies and programming languages including ASP.NET, PHP, Visual Basic, HTML, JavaScript, CSS, MySQL, MS SQL, jQuery, AJAX. I Also I have experience in desktop applications Using .Net Framework and Java. My goal is to continue doing software development and learn new languages and techniques along the way.

    $11.11 /hr
    3 hours
    5.00
  9. Faisal A.

    Faisal A. Agency Contractor

    Experienced Software Developer

    Pakistan - Tests: 2 - Portfolio: 5

    I have an overall experience of 15 years. I am currently working as a member of a fully distributed team for YouNeedABudget.com since March 2012 (http://www.youneedabudget.com/company/team). I specialise in backend server side development using Node with Javascript/Typescript. I have experience of working with both relational databases (PostgreSQL) and NoSQL databases (MongoDB). I have also done some front-end work using both AngularJS and EmberJS. I believe in test driven development, and use Karma and Chai extensively for unit testing. I have worked with Jenkins for CI, and use Git for SCM. I also use Vagrant for setting up development environments. I have worked with Heroku for application deployments. In the past, I have worked with Adobe Flex and Microsoft .NET technologies extensively.

    Groups: Application Developers Alliance

    Associated with: ByteSmiths

    $66.67 /hr
    5,524 hours
    5.00
  10. David H.

    David H. Agency Contractor

    Citrix and Virtualizaion Systems Engineer

    United States - Tests: 3

    I am a specialist in remote application delivery, VDI and cloud based computing. I have been working with Citrix products and some of their competing products and add-ons, from back in the Winframe NT4 Terminal server days, all the way up to the current Xenapp 6.5. I work full time for a major NYC hospital on the Citrix Engineering team, responsible for 200 + servers supporting a 24/7 mission critical environment. I have engineered delivering hundreds of applications to users on every type of device out there (PC, Macs, Thin clients, iPads, Androids, HTML5 browsers, etc.). I have a legacy MCSE for Windows 2000, and years of experience with Windows Server 2003, 2008, and 2008 R2. I have extensive experience with Active Directory group policies, Proxy servers, Web Servers, and Logon scripts using WSH, CMD files, and PowerShell. I have recent training in Microsoft App-V, Citrix Xenserver, Amazon Web Services, VMWare vSphere 5, OpenVPN and VDI-in-a-Box. I have recent part-time contracting experience providing Windows Server 2008 R2 IaaS servers in the cloud with Amazon AWS, OpenVPN, and a proof of concept project to provide SaaS using Xenapp and VDI for end users of a small business, including a custom web portal for them to reach their desktop from anywhere.

    Associated with: 3 Bay Consulting, LLC Agency

    $48.89 /hr
    72 hours
    4.99