Ruby Javascript Freelancers

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Sumanju Kaushal Agency Contractor

Ruby on Rails/ php/ mysql/ PGSQL/ JavaScript / JQuery /Git /CMS /MVC

India - Tests: 4 - Portfolio: 8

Over the last 7 years, I have developed a wide range of websites from small to large using PHP, MySQL, Ruby on Rails, PgSQL, Cake php, WordPress, OpenCart, Smarty, JQuery, Ajax, Various API's (Facebook, linkedIn, youtube, twitter, google, yahoo, Alexa etc.), HTML, DHTML, Elgg, Seagull, phpFox, Smarty, Redis , Curl, Payment Gateways (PayPal, Authorize, ACH and many more) Expertise in developing web based applications using cakephp, RoR, WordPress, PHP, CSS, AJAX, JQUERY/JAVASCRIPT Good knowledge of unit testing, integrated testing and validation. Version Control:SVN, Git I am good to work as independent developer or in a team.

$20.00 /hr
1,819 hours

Andrey E.

Andrey E.

Web Developer (NodeJS, Javascript, Redis) | Problem solver

Russia - Tests: 5 - Portfolio: 16

I’m software developer with over 7 years of commercial experience with a passion for technology, science and all things web-related. I have worked on broad range of projects and worn many hats. Over the years I did backend and frontend web development, set up webservers, designed and tuned databases, created single page applications and embeddable javascript widgets, implemented game logic and automated websites. My skills and experiences include PHP, Javascript (ES6, ES7, promises, generators, async await), CoffeeScript, Java, Node.js, PhantomJS/SlimerJS, LUA, Laravel/Lumen frameworks, Express, HTML5, CSS3, LESS, Bootstrap Framework, MySQL, MongoDB, Redis, Memcached, SocketIO, Websockets, REST, working with 3rd party APIs, GIT, Apache, Nginx, AWS, OpenShift, IBM Bluemix, Linux, Software Design Patterns and SOLID principles. Currently I enjoy working with Node.js/Javascript. I love solving challenging problems and my strong mathematical background allows me to think outside the box and see the big picture. I’m currently freelancing while I pursue new opportunities and can be reached through this profile.

$50.00 /hr
305 hours

Wallace Ferreira

Wallace Ferreira

Software Analyst/Developer

Brazil - Tests: 10 - Portfolio: 2

Hello, my name is Wallace. I've been working with software development for over 9 years. I acquired a lot of experience developing applications using Visual Basic, C/C++, PHP and Java. My expertise is analyzing and developing Desktop and Web Applications such as: + Crawlers/Web Crawlers - Collecting and storing data from sites, documents, videos, photos, social media sites, classified ads sites, etc. + Web Data Scrappers - Extracting, parsing, filtering and storing relevant data from web pages to readable and manageable formats like Excel, CSV, HTML, etc. + Bots and Automation scripts - Extracting and making business decisions out of data from documents like PDFs, Excel, CSV, XML, TXT, etc. - Sending email reports automatically - Auto filling forms - Price comparison apps - Event notifiers + Data conversion/transformation - Transforming/Converting data between formats for import/export in different applications. - Feed generation - Report construction + API development/integration - Adding support for third parts services - Creating interfaces for communication between systems. I have developed dozens of applications for a wide range of application domains including: - E-Commerce sites (like Amazon.com, Walmart.com, ToysRus.com, etc) - Financial market - Market research groups - Medical related groups - Shipping companies - And several other personal applications. Some formats I have expertise in are: - JSON - XML - SQL - CSV - PDF - TXT - HTML - XSL - XSLX - And others Acting as an analyst and developer, I gained experience with modeling relational databases and SQL, with a focus on MySQL DBMS. Since 2009, I have been working for a company that develops software for the financial market - EconoInfo (http://www.econoinfo.com.br). In 2012, I graduated in Computer Science at the Pontifical Catholic University of Minas Gerais - PUC Minas. Over the past four years, I specialized in Java development, especially Java EE 6.0, focusing on technologies EJB, JPA, JSF, JMS and JCR. Acting as an analyst and developer, I gained experience with modeling relational databases and SQL, with a focus on MySQL DBMS. As a developer in charge of creating the EconoInfo website's interface, I also specialized in Servlets, HTML, JavaScript and CSS.

$33.33 /hr
1,305 hours

Marcin Szczepanski

Marcin Szczepanski Agency Contractor

Senior Ruby on Rails developer

Poland - Tests: 9 - Portfolio: 10

I have been developing web applications as a hobby, before it became my profession. I am a young developer but with solid experience already. I was involved in the creation of a number of interesting projects/applications. I am constantly broadening the scope of my skills and techniques. I like working in team and I'm always willing to share knowledge.

$32.00 /hr
5,205 hours

Alexander I.

Alexander I. Agency Contractor

Senior Java / C++/ PHP / Ruby / IOS /Angular.js Developer

Russia - Tests: 3 - Portfolio: 3

I am a Lead developer with wide range of knowledge in web development process. My primary skills are Ruby on Rails, Objective-C, Swift, PHP, Java, jQuery, Javascript, AngularJS, C++and HTML, CSS. If you need well coded and well configured web site or web application, then I am a right man who can do this job. My main principle is: correct processes provide correct results. I am very interesting in ongoing jobs and partnerships, so it is very important that my clients had be happy to work with me. Feel free to contact me any time, my team and I would be glad to discuss your project.

$35.00 /hr
6,068 hours

Hitesh Joshi

Hitesh Joshi Agency Contractor

Node.js & C++ Developer

India - Tests: 3 - Portfolio: 1

I have developed a wide range of web applications using redis, mongodb, ruby on rails, php, nodejs, nginx, HMTL5, javascript, backbonejs and MySQL including sites for startup companies and small businesses. My core competency lies in complete server side coding and algorithms , and I am seeking opportunities to build fantastic web/mobile applications from the ground up for you or your business. I write decent and understandable code with a mix of OOP and regular functions, and the code writing decency is same for all the languages, javascript, php, ROR I also have experience with VOIP servers, realtime video conferencing and Screen sharing applications and have build few in nodejs and c++

$55.56 /hr
780 hours

Vineet Sethi

Vineet Sethi Agency Contractor

Open Source Technologies Architect & Consultant

India - Tests: 5 - Portfolio: 7

I started as hobbyist programmer (writing code in PHP) in 2000 and since then I never looked back. Electrical engineer by education, I have learned and obtained expertise in Ruby on Rails, Javascript and Database Management Systems and since over last 2 years I have been working on NodeJS, AngularsJS, BackBoneJS and other related technologies which adds to my core competencies. I have fairly good amount of experience in Mobile Application development too. Since the inception of Hybrid Mobile Frameworks I have worked on Ionic, jQMobile, Cordova, Phonegap etc. I am an established Upwork programmer since 2008 and have satisfactorily delivered projects/MVPs to start-ups, high-profile corporations, small- and medium-sized businesses. I follow open and honest business practices to work with my clients to ensure I bring all their goals and ideas to life. I am looking for clients that are seeking experience and quality over quantity.

$33.33 /hr
1,880 hours

Bang Ly Tieu

Bang Ly Tieu

Expert in Ruby / Rails / jQuery / ExtJS / MySQL / Facebook / Linux

Vietnam - Tests: 8 - Portfolio: 2

With a lot of experience on HTML, DHTML, Javascripts/Prototype/jQuery, Ruby/Ruby on Rails, PHP, MySQL and administrative skills for various platform Windows, Linux, Mac, I'm looking for chances to work on any projects as build site from ground up, develop more features, maintain, administrate servers/site.

$50.00 /hr
2,409 hours

Szymon W. Agency Contractor

PHP, Zend, Magento, JQuery, (X)HTML, CSS, RoR, Wordpress, MySQL

Poland - Tests: 9 - Portfolio: 7

I started my adventure with website programming 6 years ago with a small home site. From this time I created several websites for various clients using PHP, MySQL, HTML with CSS, jQuery, AJAX. I have created complex back-end management systems including content management, e-commerce and customer relations.

$39.00 /hr
10,531 hours