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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!

$112.00 /hr
1,064 hours

Dmitry Ryazantsev

Dmitry Ryazantsev Agency Contractor

True Innovative Technologies in mobile and desktop

Russia - Tests: 5

I've been experienced in IT for 5 years. I received some awards at industry competitions for last years. I have gain experience in Android technologies, often have taken a part in development and testing game applications. For several years I've been working with high-load systems, mostly we took part at the client-side, including desktop and mobile development in C++/Qt and QML. Also we have been involved into developing high-load services. In my work I always followed these principles: - always make my job in time or even earlier - always ready to help my client to modify his task if needed - guarantee a full confidence of my client - responsive at least for half-month after service - always bring my work to the very end I always ready for longer-termed projects and opened for honest communication.

$15.00 /hr
19 hours

Igor K.

Igor K. Agency Contractor

Expert C#, ASP.NET MVC, Angular Js Developer

Russia - Tests: 2 - Portfolio: 4

I have been developing using .net and c# for about 6 years, 4 of them in a team commercial development with .net 3.5-4.5, wcf, wpf, winforms, mvc3, mvc4, entity framework postgresql, mssql and more. Now I'm freelancing. My primary specialization is highload client-server applications, gis and transport monitoring systems and web mvc applications. But I have been involved in many other projects and I can and can work with any project related to .net.

$30.00 /hr
287 hours

Eugene Kondratyuk

Eugene Kondratyuk Agency Contractor

Senior Ruby on Rails Engineer

Ukraine - Tests: 1 - Portfolio: 5

I have 3+ years of Ruby on Rails experience and before that I was a .NET developer for almost 6 years. I do have 2+ years of experience as a team lead over small team consisting of 3-4 people. I do feel well both as frontend and backend developer. I have developed some big projects from scratch in education market, medical field and e-commerce. Also I've taken part in many small and big projects using Ruby on Rails, Angular.JS, Backbone.JS, JQuery, Redis, MySQL, PostgreSQL, Git, CoffeeScript, SASS, HAML, Bootstrap and TDD. I am interested in building quality software. Thats why I do not write code very quickly, but I do write code which is well designed, easy to understand, extend and maintain in the future. My oDesk's portfolio contains only a part of the projects in which I participated.

$27.78 /hr
400 hours

Alexander K.

Alexander K.

Yii developer

Russia - Tests: 3 - Portfolio: 2

Hello! I am web developer with 6 years of experience and I am specialized on Yii framework. My skills: Languages: PHP5/JS/MySQL/HTML5/CSS3/C/C++/Java Technologes: MVC/OOP/Patterns Servers: Apache2/Ngnix Frameworks: Yii framework/Kohana/Code Igniter CMS: Wordpress/Joomla/ModX Other: jQuery/Twitter Bootstrap/Ajax

$16.00 /hr
0 hours

VMODEV Technology Group

VMODEV Technology Group

Vietnam Mobile Development


Founded in 2012 as a corporation for investment and high technology, VMODEV is the convergence of experience and creative thinking. These qualities, together with a passion of conquering the latest technology, and other comparative advantages enable us to ensure the quality and offer an effective price.

$13.33 /hr
2 hours