Ruby Javascript Freelancers

Showing 6,923 freelancers

Ruby Javascript Freelancers

Showing 6,923 freelancers

  • C++, CUDA, Matlab, Simulink, Optics

    My main skills are C, C++, Matlab, Python, Simulink, GPGPU (CUDA, OpenCL), machine learning, computer vision (incl. OpenCV), DSP (audio processing, image processing). I work with these technologies for several years and can show projects in which I used them … more

    My main skills are C, C++, Matlab, Python, Simulink, GPGPU (CUDA, OpenCL), machine learning, computer vision (incl. OpenCV), DSP (audio processing, image processing). I work with these technologies for several years and can show projects in which I used them. My additional skills are are: Javascript, Angularjs, Ruby, Haskell, C#, SQL, Qt... I used these technologies to solve minor tasks, not large projects as for the "main skills". Batteries included: unix shell scripting, vcs (hg, git), ssh, makefiles. The projects I most proud of: * Development of the "high-level" algorithmic parts of a satellite sun tracker. A sun tracker is a device that helps a satellite to find its orientation. I was to develop algorithms of searching, catching and tracking sun. Devices that use the algorithms I developed are being set on several types of satellites. * Development of mathematical methods which improve accuracy of different devices including the sun tracker above. For example, my algorithm that compensates effects of temperature increases device accuracy by approx. four times (from 7 to 2 arcminutes). * I also developed algorithms for devices that are not in production yet: rangemeters, anglemeters, 3d scanners etc. and helped with the development of algorithms of statellite Earth tracker. * Research and development of the way to optically find parameters of thin films. It was an optimization problem which I tried to solve using different methods (including genetic algorithms and particle swarm optimization). I found a solution and it was very computationally-heavy, that is why I wrote the core algorithm with CUDA and Thrust. * I developed an interactive mode for Clay programming language (claylabs.com/clay/) that uses LLVM JIT technique. My patches can be found in the work-in-progress branch at github (https://github.com/jckarter/clay/pulls/galchinsky?direction=desc&page=1&sort=created&state=closed). Unfortunately the project is not being developed now. * Odesk clients gave me opportunities to help them in different interesting fields. I made several interesting projects: image stitching, GPGPU financial app., semi-automatic tumor detector and a dozen of small projects that are listed in my odesk profile.  less

    matlab cuda radiant-zemax git image-processing c++ c 00 more less
    • $25.00 HOURLY RATE
    • 4.9
    • 161 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 8 TESTS
  • Expert Ruby on Rails Developer, Team Lead, PM

    70% of all software projects fail. Why is that happening? A few reasons: - Poor communication - Poor communication - Poor communication - Badly defined requirements - Wrong project's priorities - Sloppy development practices How do I address these issues: *Communication & Requirements clarification* - Monday to … more

    70% of all software projects fail. Why is that happening? A few reasons: - Poor communication - Poor communication - Poor communication - Badly defined requirements - Wrong project's priorities - Sloppy development practices How do I address these issues: *Communication & Requirements clarification* - Monday to Friday daily status meetings at fixed time, suitable for all team members(customer is a team member). - Weekly iteration planning meetings. - Transparent and easy-to-use Project Management tools. *Project prioritization* - Complexity estimation - Short iterations & short feedback loop *Development practices* - Perfectly clean code - Test Driven Development (99% test coverage). - Obligatory code review & collective code ownership. - Domain Driven Design, Lean Architecture, GRASP, SOLID If this sounds good for you, let's get this done. LinkedIn: http://www.linkedin.com/pub/vladimir-rybas/13/901/1a9 Github: https://github.com/vrybas Tech Blog: http://vrybas.github.io/  less

    mysql javascript ruby ruby-on-rails github linux-system-administration agile-software-development scrum 00 more less
    • $100.00 HOURLY RATE
    • 4.3
    • 5914 HOURS
    • THAILAND
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 3 TESTS
  • Expert in Ruby on Rails, jQuery, Facebook Apps, Amazon EC2

    I started using Ruby on Rails during the Summer of 2006 and I've helped various business from start-ups to established companies in building web applications. I enjoy working with small teams of motivated individuals. I have the ability to … more

    I started using Ruby on Rails during the Summer of 2006 and I've helped various business from start-ups to established companies in building web applications. I enjoy working with small teams of motivated individuals. I have the ability to *jump in* on existing projects and enjoy *figuring-out* things when there is sparse documentation. My primary skill is the ability to restate complex problems into simpler, more digestible forms.  less

    ruby-on-rails ruby rest facebook-api html5 oauth postgresql jquery rspec cucumber bdd amazon-ec2 00 more less
    • $100.00 HOURLY RATE
    • 5.0
    • 4576 HOURS
    • INDIA
    • LAST ACTIVE
    • 2 PORTFOLIO ITEMS
    • 4 TESTS
    GROUPS:
  • Ruby On Rails Developer

    Over the last 4 years, I have developed web applications using RoR with wide range stack of technologies, e.g. HTML (haml, slim), CSS (sass, scss, twitter bootstrap), JS (coffee, jquery, jquery-ui, backbone, spinejs), with different storage (PostgreSQL, MySQL, MongoDB … more

    Over the last 4 years, I have developed web applications using RoR with wide range stack of technologies, e.g. HTML (haml, slim), CSS (sass, scss, twitter bootstrap), JS (coffee, jquery, jquery-ui, backbone, spinejs), with different storage (PostgreSQL, MySQL, MongoDB, Riak). Also use of wide range of related technologies for optimizations, e.g. background jobs (DelayedJob, Sidekiq), caching ans search engines (Shpinx, ElasticSearch). Good know testing methodology and can write tests with RSpec and Cucumber. Have more than 10 years of Delphi experience.  less

    ruby-on-rails haml sass twitter-bootstrap coffeescript html css javascript delphi 00 more less
    • $16.67 HOURLY RATE
    • 5.0
    • 18 HOURS
    • UKRAINE
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 1 TEST
  • PHP Developer / HTML,CSS,Javascript Design / Drupal enthusiast

    I am a PHP/MySQL developer with great competence on design using HTML,CSS and Javascript. I have been in a computer science school and I am working as webmaster for a small company. I am interested to work on … more

    I am a PHP/MySQL developer with great competence on design using HTML,CSS and Javascript. I have been in a computer science school and I am working as webmaster for a small company. I am interested to work on all kind of projects from website design and coding to more complex applications. My challenge is to provide professional end full featured projects using only free tools and Opensource softwares.  less

    mysql php drupal html javascript css sql ajax wordpress ruby-on-rails git mercurial cakephp codeigniter 00 more less
    • $25.00 HOURLY RATE
    • 5.0
    • 304 HOURS
    • MADAGASCAR
    • LAST ACTIVE
    • 14 PORTFOLIO ITEMS
    • 10 TESTS
    GROUPS:
    ASSOCIATED WITH:
  • Developer php

    Having development experience of 4+ years of wide range of websites using HMTL, JS, PHP, and MySQL. I have experience with Development and support projects with Zend Framework, Zend Framework 2, Doctrine 2, ExtJS. Recently I develop with symfony2. I … more

    Having development experience of 4+ years of wide range of websites using HMTL, JS, PHP, and MySQL. I have experience with Development and support projects with Zend Framework, Zend Framework 2, Doctrine 2, ExtJS. Recently I develop with symfony2. I'm very good work in team. I have experience in heavy projects. I am able to understand someone else's code. I have a passion for development with PHP technologies. I would like to have a long term relationship with you and deliver jobs on committed deadlines 100%. Technical Skill Set Includes: - PHP5 - OOP - Doctrine 2; - MySQL - PHPbb3 - Symfony 2 - Zend Framework - JavaScript; - JQuery; -Ext JS; - HTML; - CSS; - Twig - Linux - Mercurial - Git - Nginx - Redis - Ruby On Rails - Ruby  less

    php symfony zend-framework phpbb doctrine-orm mysql javascript jquery css html 00 more less
    • $12.00 HOURLY RATE
    • 5.0
    • 0 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 2 TESTS
  • Social Engine/Magento/WordPress/Joomla

    Over the last 4 years, I have developed a wide range of web applications using following Programming languages & Skills: PHP, Semantic Web, MongoDB, NodeJS, Ext JS, SPARQL, CakePHP, MySQL, RedHat, AJAX, jQuery, Apache, JavaScript, LAMP, CSS, XHTML, XML, JSON, HTML … more

    Over the last 4 years, I have developed a wide range of web applications using following Programming languages & Skills: PHP, Semantic Web, MongoDB, NodeJS, Ext JS, SPARQL, CakePHP, MySQL, RedHat, AJAX, jQuery, Apache, JavaScript, LAMP, CSS, XHTML, XML, JSON, HTML, Subversion, Linux, Git, Web Services, Wordpress,SocialEngine, SQL, Web Applications, DHTML, HTML5, Web Development, Magento, Open Source, MVC, Eclipse, Smarty, Zend Studio, Zend Framework, Lithium, Ruby, Perl, Python, C,C++, Haskell , Magento, Joomla, etc. My specialties are: -Theme creation from PSD -product upload using csv -module creation -multi-store creation -Payment & shipping method implementation -Social integration -Plugin customization & Development  less

    wordpress socialengine codeigniter zend-framework yii-framework magento joomla 00 more less
    • $16.67 HOURLY RATE
    • 5.0
    • 491 HOURS
    • INDIA
    • LAST ACTIVE
    • 8 PORTFOLIO ITEMS
    • 2 TESTS
    ASSOCIATED WITH:
  • ColdFusion Developer

    Offer the potential employer a certified Scrum Master, degreed Information Technology professional with substantial certifications and ongoing professional development. Ability to handle both people and details with equal skill and confidence. A proven self-starter pursuing ongoing education, currently learning more … more

    Offer the potential employer a certified Scrum Master, degreed Information Technology professional with substantial certifications and ongoing professional development. Ability to handle both people and details with equal skill and confidence. A proven self-starter pursuing ongoing education, currently learning more about Ruby on Rails, JQuery Mobile, and Agile, with strong work ethic who maintains high standards of quality control. See resume https://docs.google.com/document/d/1ZoJPL70WUHWao-gB7LkSFvpRv3vVzgppc0Lm9ASAWVc/edit?usp=sharing  less

    coldfusion sql css javascript jquery 00 more less
    • $44.44 HOURLY RATE
    • 5.0
    • 63 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 0 TESTS
  • AngularJS / C# / ASP.NET / MVC Senior Developer

    I have been working as a developer in enterprise web solutions for three years:. Net, C #, Test Driven Development, Entity Framework, MVC (3-4). One of my advantages is the ability to work not only as a backend developer, but also … more

    I have been working as a developer in enterprise web solutions for three years:. Net, C #, Test Driven Development, Entity Framework, MVC (3-4). One of my advantages is the ability to work not only as a backend developer, but also as a frontend: twitter bootstrap, Kendo UI, jQuery UI, pure JavaScript. I also have some experience in optimizing web applications with high load. I prefer to work hard and full time, though I can be useful as an additional developer on demand as well. I am communicative and responsible.  less

    c# .net-framework asp.net asp.net-mvc entity-framwork ado.net iis mysql jquery javascript 00 more less
    • $27.78 HOURLY RATE
    • 4.8
    • 3149 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 3 TESTS
    ASSOCIATED WITH:
  • Ruby on Rails / Backbone.js / jQuery / Cloud / HTML5 / CSS3 | Russia

    While I've been working in the company, I was engaged in prototyping of portals and internet-banks. I’ve been involved as Front-end developer on this projects. I have developed user interfaces with cross-browser compatibility, using Javascript, frameworks such as … more

    While I've been working in the company, I was engaged in prototyping of portals and internet-banks. I’ve been involved as Front-end developer on this projects. I have developed user interfaces with cross-browser compatibility, using Javascript, frameworks such as jQuery and Ajax technologies. Front-end was built on X(HTML) + JS and as a backend Ruby on rails or Java, XSLT stack was used. I have abstract mindset and can easily “hack” through others user-interface code. User interfaces, in, practically, all projects, were done, using Ajax, so I got much expertise with maintaining Ajax software. After a year of working in the company, I’ve got two juniors as a mentor. Also I have developed a highly dynamic HTML/JS prototype of an internet-bank, communicating with the customer and rapidly adopting changes under heavy pressure from client. Recently I got highly involved in studying client-side MVC libraries such as Backbone.js.  less

    ruby-on-rails jquery html5 xhtml javascript css css3 html adobe-photoshop 00 more less
    • $22.00 HOURLY RATE
    • 5.0
    • 387 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 6 TESTS
    ASSOCIATED WITH:
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