Top Upwork Freelancers

Clear all filters

Maksym R.

Maksym R. Agency Contractor

C++/C#, Web/Desktop/3D

Ukraine - Tests: 4 - Portfolio: 10

I`ve started as C/C++ developer and improved my windows native programming skills on various projects. Then I`ve decided to learn .NET platform and joined to company that was developing several big C# desktop applications. In next years I also became an experienced ASP. NET developer and also I`ve tried myself in a real-time visualization technologies.

Associated with: iQueSoft

100% Job Success
$38.89 /hr
515 hours

Slava D.

Slava D. Agency Contractor

.NET web/desktop expert

Belarus - Tests: 9

Over the last 7 years I was participating in developing number of web and desktop applications using ASP.NET, ASP.NET MVC, Windows Forms, WPF. I have great experience in MS SQL integration. My core approach is to deliver things in time and to keep customer aware of each detail in development process. I bill only for productive time. I can create sites from scratch as well as join a team and support existing code. I love challenging problems and give preference to non-trivial tasks.

Associated with: Virtotek

100% Job Success
$30.00 /hr
123 hours

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 since March 2012 ( 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

100% Job Success
$66.67 /hr
5,524 hours

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

100% Job Success
$48.89 /hr
72 hours

Damian Z.

Damian Z. Agency Contractor

Experienced Software Engineer

United Kingdom - Tests: 12

========= 1500+ oDesk Hours - Excellent feedback - Good oDesk tests results ========= Years of experience of C++ (STL, Boost) and C#, Java, Python and Android programming, digital video quality estimation, IPTV Software Development, Asterisk and A2Billing system configuration etc. Digital TV and IPTV Specialist. Cooperation with Video Quality Experts Group. Participation in big commercial project for public safety monitoring - INSIGMA. Working in IPTV, DVB. Specialist of VoIP domain. Experienced in configuring and administration of VoIP system based on Asterisk and A2Billing. Good knowledge of video streaming technology as well as protocols and codecs used in digital video transmission: H.264, MPEG2-TS, MJPEG, RTP, RTSP, IGMP, UDP, SDP. Very good practical knowledge of Linux operating system: Debian, Ubuntu, CentOS distributions Experience in developing Android applications Experience with installing, configure and maintain platforms based on Amazon Web Services (AWS): EC2, S3, RDS, SES, EBS, Elastic IP, Mechanical Turk GStreamer API Experience

Associated with: XMementoIT Agency

$55.56 /hr
1,692 hours

David J.

David J. Agency Contractor

** Skilled professional software engineer (cs & s/w eng degrees +PhD)

United States - Tests: 6 - Portfolio: 3

With 17 years experience in software engineering and development, I've worked on a diverse set of projects. I consider myself a life-long learner and have never hesitated to dive into becoming an expert in new domains. I've worked on projects in academia, for businesses, defense contractors, government laboratores in several countries and also many of my own varied projects. As of May 2013 - I'm available 20hrs/wk (possibly up-to 30). Some areas of expertise include: - Distributed systems & architecting for the Cloud - Web Applications (Ruby & Rails, LAMP - Linux/Apache/MySQL/PHP); AJAX - jQuery/Javascript; web-service APIs (XMLRPC/JSONRPC/REST) - Relational & Object Database Design - Simulation: physics simulation, 3D graphics (OpenGL, OpenSceneGraph) - C++ desktop applications (UI, libraries, components) - Bioinformatics (Biolab Matlab-like bio environment - Java/C#/.NET/Python) - Networking (protocol design; wireless; TCP/IP; HTTP and related technologies) - Embedded systems (hardware system design, construction & programming) - Operating System design and implementation - Language design, interpreter and compiler construction - Human Computer Interaction (HCI) - user interface design & implementation (X11, Interviews/Fresco, Qt, Swing, AWT, Winforms, GTK+) - Robotics: AI, Vision, Path planning, Inverse Kinematics - Hardware: Sensors, VHDL, FPGAs Most of development has historically been in C++, but in recent times I've favoured C#, Java or Ruby. For web applications and services I prefer Ruby but also have experience in PHP. Over the years I've used many languages and can pick up new languages and their library frameworks quickly. I've also designed languages (upto the complexity of C++) and written interpreters and optimizing compilers (so I've not met a language feature I'm not well versed with). I'm a good communicator, proficient at technical writing and have published many papers in peer reviewed journals and other publications. I'm most interested in working on web sites/services, particularly where complex distributed systems involving interacting databases are concerned or in the area of virtual reality, 3D graphics and simulation systems (including cutting-edge 3D game platforms). However, in general I'll find anything challenging interesting to work on!

Associated with: EgoMachines Agency

$112.00 /hr
1,064 hours

Althaf M.

Althaf M. Agency Contractor

Certified Web/Software Architect with 10 years experience

India - Tests: 15 - Portfolio: 7

Experience : Experience in architecting and developing softwares for broad range of industries, including Building Management, Energy Management, etc. Have took part in many full SDLC projects and architected few Hybrid products. Well versed with the new paradigm shifts in programming and sound knowledge and experience in system level programming , as well as application programming - especially cross platform complaint solutions. Good linux admin skills as well as automation of many process using scripts. Through knowledge and practical knowhow on scalable web applications as well as web databases. Designed many e-commerce related portals from scratch and made scalable and user friendly approach in the solutions. Have a good overlook on the various aspects of product development and product management and also took part in and contributed to many product marketing strategy building activities. Decade long experience with various technologies and platforms make me learn more and make myself better utilized in various solution architecting and managing activities. Certifications : Certified Software Architect - Carnegie Melon University Certified Green Belt - Six Sigma Engineer (Process) Certified Scrum Master - Scrum Alliance (Agile) Programming/Scripting Languages : C++, PHP, JAVA,JSP,PERL, JAVASCRIPT, HTML5 , CSS2&3, Frameworks/Tools Used : QT using C++, JPA2 - Hibernate, Spring web-mvc, Spring data, Spring security , Spring web flow, Code Igniter, CakePHP, jQuery ,Backbonejs , Underscorejs, Knockoutjs, WebRTC - peerjs, SASS, LESS , REST, SOAP , RTSP, ffmpeg videojs etc. Servers Used , Apache(for php and mysql), Apache Tomcat for java, Glassfish Planning tools used : JIRA , CONFLUENCE, TRELLO, ASANA, Basecamp, Balsamiq Databases - Relational => MySql - Oracle Databases - NoSql => {'Mongo'}, /CouchDb, Solr My Strengths : 1. Quick Learner 2.Perfection (Altruistic) 3. Business Perspective Presently doing partial user experience designing activities - user interviews, Mockups, Card Sorting, Information Architecture, Persona Creation. TRAININGS HTML5, CSS3 and Java Script Training from Microsoft Microsoft training in Win8 Mobile Application Development. Startup Engineering, Standford Unversity Hadoop & Big Data Analytics, Edureka Data Scientist, University of Washington Spring Training from VMWare Mostly online through skype and hangout.

Associated with: SecureBulls

$30.00 /hr
672 hours

Sergio Pulgarin

Sergio Pulgarin Agency Contractor

Software Engineer

Colombia - Tests: 8 - Portfolio: 3

Providing clients around the world with high quality services in Software Design, Engineering and Development. I have a degree in Electronic Engineering; I have excellent Software development, and Networking skills. My area of expertise is design, engineering and development of Software applications with Networking functionality, use and design of functionality exposed through web APIs. Additionally, I'm experienced in the following areas: - Networking applications: TCP Servers, Sockets, Network requests, Web viewers, Web APIs. - Webkit development for full integration of Web and Desktop applications. - GUI development: Native looking user interfaces. - Filesystems: Creating, reading and writing, text and custom data types. - SQL Database handling for desktop and web applications. - SkypeKit application development. - Server side web applications using Django. I have experience in Object-Oriented design and use better coding practices; I always keep in mind readability and reusability. I also deliver documented sources, when required.

Groups: LoginRadius

Associated with: SOLID, GSOLID

$33.33 /hr
732 hours

Vadzim Marozau

Vadzim Marozau Agency Contractor

iOS developer, Web Developer with ASP.NET MVC experience


Results-oriented software developer with 2.5 years experience in development. I make it my goal to create software with the user in mind, creating applications with a useable and intuitive user interface experience. I also understand the importance of creating highly readable and easily maintainable source code. I am constantly striving to learn new technologies and look to ways to better myself in this rapidly changing industry. TECHNICAL SKILLS Languages: Objective C, Javascript, C#, JSON, SQL, HTML Databases: SQLite, MS SQL, MySQL Development Software: XCode, Visual Studio, Git Platforms: Mac OSX, Windows

Associated with: Panda Systems

$20.00 /hr
303 hours