Javascript Programmers and Developers

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Since 1995, Javascript has grown to be one of the most frequently used computer programming languages. It’s a multi-paradigm programming language that can be used for websites, PDF documents, games and desktop widgets. On Upwork, the world’s largest online workplace, companies and individuals hire skilled Javascript developers to create software solutions and front-end applications.

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JavaScript Job Cost Overview

Typical total cost of Upwork JavaScript projects based on completed and fixed-price jobs.

Upwork JavaScript Jobs Completed Quarterly

On average, 4,736 JavaScript projects are completed every quarter on Upwork.

4,736

Time to Complete Upwork JavaScript Jobs

Time needed to complete a JavaScript project on Upwork.

Average JavaScript Freelancer Feedback Score

JavaScript Upwork freelancers typically receive a client rating of 4.68.

4.68
Last updated: May 1, 2015
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  1. Daniel K.

    Daniel K.

    ASP.NET MVC, API, AngularJS Lead Developer

    Ukraine - Last active: 3 days ago - Tests: 2 - Portfolio: 2

    I'm a full stack .NET Web developer with over 6+ years of experience and fluent spoken english. Worked for Danish, US and UK companies on complex enterprise solutions as well as small to large web based apps and services for startups. From time to time I also contribute to open source projects. Here is what i use during the day: - C# - EF both code first and database first (depending on the project type) - ASP.NET WEBAPI - ASP.NET MVC 3/4/5 - Orchard - HTML5, CSS3, BOOTSTRAP - Vanila JavaScript, AngularJS - Agile development (SCRUM, Kanban) and more.. You're welcome to view my linkedin profile: http://bit.ly/DanielK-Dev Feel free to contact me if you need help implementing your next idea or need support with a running systems to discuss the project in detail. Thanks, Daniel

    Groups: Application Developers Alliance

    $40.00 /hr
    2,321 hours
    4.80
  2. Payal G.

    Payal G.

    Expert Ruby on Rails Developer

    India - Last active: 22 hours ago - Tests: 7 - Portfolio: 9

    Availability : Full time for $4500 per month Expert Ruby on Rails developer with over 7 years experience in developing web applications in different domains. My core competency is to be able to jump in to any phase of project life cycle with full efficiency. Worked well on projects with team of 1-12 members as well as single handedly built projects from scratch to the production/maintenance stage. Full stack developer with backend, frontend and server management skills. Skills: Ruby on Rails, Ruby JavaScript, jQuery, node.js, backbone.js, d3.js Mysql, postgresql, neo4j, mongodb HTML5, CSS3, HAML, SASS RSpec, Cucumber, Selenium, Capybara Amazon Web Services, Heroku Github, SVN Trello, Asana, Pivotal Tracker Adobe Photoshop, Adobe Illustrator API Integration (Facebook, Twitter, Instagram, Salesforce, Google Services and any third party service) SDK development, API development

    $55.56 /hr
    3,053 hours
    4.94
  3. Howard Selfe

    Howard Selfe

    Analyst Programmer, Project Manager

    South Africa - Last active: 22 hours ago - Tests: 5

    I have a BSc (Honours) degree, with majors in Computer Science and Applied Mathematics. Up until recently I owned an IT solutions company specializing in online application development. My core skill-set includes ASP.net, VB.Net, C#, PHP, SQL Server, mySQL, Java, Javascript, VBA (Excel and Access), VBscript, HTML and CSS. Additional skills include, amongst others, SVN, OO, MVC, Wordpress and Silverstripe. I have excellent people skills, a proven track record in effective project management, the ability to work in an unstructured environment and be self motivated, good relationship building skills and excellent writing skills. Furthermore, I have more than 15 years of experience in real world web and application development. I believe in ethical business practice, and my commitment is to provide online applications and IT business solutions of the highest possible quality.

    Groups: Crossrider

    $33.33 /hr
    4,354 hours
    5.00
  4. Marcin M.

    Marcin M.

    Web Data Extraction and Regexp Expert

    Canada - Last active: 2 days ago - Tests: 2

    Software Developer specializing in Web Data Extraction and Manipulation. Expert in web data retrieval (web scraping), data manipulation (using regular expression parsing) and website change monitoring. • Fluent in English, French, Polish, and Spanish. • Government of Canada Secret Security Clearance (avail. on request). • Very organized, innovative, and dedicated to work. • Excellent communication skills (both written and spoken). • My TV interview: youtube.com/watch?v=MmRkoF3IaQ8 My objective is to deliver quality solutions and leave my clients satisfied.

    Groups: Crossrider

    $33.33 /hr
    2,462 hours
    5.00
  5. Dorris joy A.

    Dorris joy A.

    Certified PHP/MySQL/HTML5/CSS3/JS/SVG/Canvas dev

    Philippines - Last active: 1 day ago - Tests: 5

    With almost 10 years evolving in the IT world, i've gained sufficient knowledge and now very competent to develop applications and websites for people around the globe. I've done websites with CMS, online booking and reservations, CRM systems, streaming video playlist, mobile services in the Philippines (Smart, Globe, Sun). These projects were developed mainly with PHP and MySQL. Also, Javascript plugins and framewroks are also injected to provide cool user interaction. Aside from being a programmer, Im also inclined to art and designs, so Im very particular with the look and feel of the product, while taking in mind the clients' specifications.

    $35.00 /hr
    1,409 hours
    4.77
  6. Hamza Waqas

    Hamza Waqas

    NodeJS - PHP - MongoDB - ElasticSearch - Redis - Consultant (Platform)

    Pakistan - Last active: 22 hours ago - Tests: 4

    Guy with big shoes who spent a lot of time in rushing into the technology stacks. He mostly get his hands dirty with high engineering where we need to start with atomicity, enhancement, scalability and distributed architectures. He knows what we have to do when the implementation is not just about the tech talk. Wait, did you asked write me to write the for loop? Well, there are a lot of other challenges as well when it comes to the choice of stack, selection of right platform and ability to end up with the exact matters! He has experience of working with different frameworks, languages & platforms. Usually, you'll find his hands dirty into something really reliable and that is making out high-end engineering. He's familiar with the solutions & principles required to write own framework as he has written couple of MVC, HMVC & boilerplate frameworks in PHP & Node.js. In back days, he was working with PHP and spent all of his big part in that. But now you'll always find him working on Node.js with some top class stacks to make robust & scalable products. Hamza is *nix (OSX / Linux) enthusiast so don't tell about benefits of using #windows. The guy with entrepreneurial spirit (no, I'm not that fake VISIONARY ENTREPRENEUR) and is already co-founding few startup companies. Languages: - Node- Python- Java- PHP- JavaScript Frameworks: - Zend- Kohana- Slim- Drupal & custom written MVC frameworks. - Node- express- compound- restify- sails.js- kraken.js - Play!- Bottle Mobile: - Android SDK- PhoneGap Databases: - MySQL- Oracle9i- MongoDB- OrientDB- Redis- Cassandra- Couchbase Distributed: - Hadoop- Storm- Mahout- Stanbol- Tika Search: - ElasticSearch Frontend: - Backbone- Ember- React- Angular Version Control: - Git- SVN AWS: - EC2- S3- DynamoDB- RDS- Redshift- SQS (Amazon) Brokers: - RabbitMQ- Kafka- ZeroMQ- PubNub- Redis(Pub/Sub) Job Servers: - Gearman- Celeryd PM: -Github- Bitbucket- Redmine- Gitlab- Jira- Pivotal

    Groups: Application Developers Alliance

    $55.56 /hr
    676 hours
    4.91
  7. Matthew Davids

    Matthew Davids

    Software Architect

    United States - Last active: 22 hours ago - Tests: 3

    Currently doing a few different things. Among them: - Cloudformation and infrastructure design on AWS: - Autoscaling, S3, couchbase, node applications, Chef - Javascript Single Page Application design: - React.js, gulp, semantic-ui - Fluid Dynamics/Modelling in Processing: - Side project, not professional. Navier-Stokes, numerical methods, computer graphics, etc. I previously developed provisioning and deployment solutions for a client's in-house automated testing infrastructure. The majority of this was done in Ruby, with some variations dictated by DSLs in Chef and Vagrant, as well as a number of scripting languages, as required. I've also managed a team of 3-5 software engineers working on provisioning automation/DevOps projects. Current Frameworks and JS tools: React.js, backbone.js, gulp.js, bower, browserify, node, etc... More to come shortly. Current Languages: JavaScript, Ruby, Chef, Batch, BASH, Powershell, XML, JSON, AutoIT Current Tools: Chef, Amazon Web Services, Vagrant, Ant, InstallAnywhere, Install4j Current Operating Systems (configuration, software deployment, etc): Windows Server (2003 - 2012) SLES 11 RedHat 6.4 CentOS 6.4 Ubuntu 12.04/14.04 Amazon Linux Past Languages: Processing, C++, Java, OpenGL, Octave, MATLAB, Mathematica, SQL, C, C#, LUA, R, and Python Other: Verilog, VHDL, Oculus Rift, Razer Hydra

    $60.00 /hr
    1,526 hours
    5.00
  8. Jordan Ringenberg

    Jordan Ringenberg

    PhD in Computer Science, Expert in C++, Python, MATLAB, Java, Web Dev.

    United States - Last active: 4 days ago - Tests: 3

    Expert knowledge and over seven years of experience in object-oriented programming and agile development utilizing C++, Java, Python, Visual Basic, Objective-C, C#, MySQL, shell scripting, and web programming Software engineering and computer vision expertise, with numerous peer-reviewed published outcomes. Specialties include object-oriented design, algorithms, image processing and computer vision, and 3D modeling Expert-level experience in major development platforms including .NET, MATLAB, Linux/UNIX, Eclipse, and Cocoa Strong written and verbal skills, with proven track record in university teaching and scholarly publications

    $60.00 /hr
    100 hours
    5.00
  9. Bilal Siddiqui

    Bilal Siddiqui

    Java and XML consultant

    Pakistan - Last active: 1 day ago - Tests: 1

    I am an electronics engineer, XML consultant, technology evangelist, and frequently published technical author. After graduating in 1995 from the University of Engineering and Technology, Lahore, I began designing software solutions for industrial control systems. Later, I turned to XML and built web- and WAP-based XML processing tools, server-side parsing solutions, and service applications. Since 2006, I have focused exclusively on Java- and XML-based open source tools and solutions. A strong advocate of open source tools, I not only design solutions based on them but also train software and IT personnel at Lahore universities in using open source technologies. I am the author of JasperReports 3.6 Development Cookbook (Packt Publishing, 2010). Please see my following articles that I've been writing to display my work. Data visualization, Part 1: Visualize browsing metrics with SVG and D3 http://www.ibm.com/developerworks/opensource/library/os-dataviz1/index.html?ca=drs- Data visualization, Part 2: Use D3 component layouts http://www.ibm.com/developerworks/opensource/library/os-dataviz2/index.html Bonita for business process management, Part 1: Configure a simple workflow http://www.ibm.com/developerworks/opensource/library/j-bpm1/index.html Bonita for business process management, Part 2: Configure forms and variables http://www.ibm.com/developerworks/library/j-bpm2/ Integrate social networks into BPM, Part 1: Collect Twitter data http://www.ibm.com/developerworks/library/j-sb1/ Integrate social networks into BPM, Part 2: Add Twitter data to CRM http://www.ibm.com/developerworks/library/j-sb2/ XML Canonicalization http://www.xml.com/pub/a/ws/2002/09/18/c14n.html http://www.xml.com/pub/a/ws/2002/10/09/canonicalization.html Integrating healthcare services, Part 1: Using an Enterprise Service Bus for healthcare https://www.ibm.com/developerworks/java/library/j-hsb1/index.html Integrating healthcare services, Part 2: Using Apache ServiceMix as a Healthcare Service Bus https://www.ibm.com/developerworks/java/library/j-hsb2/ Design XML schemas for enterprise data https://www6.software.ibm.com/developerworks/education/x-schemadata/x-schemadata-a4.pdf Build configurable workflows with WS-BPEL and IoC, Part 2: Developing and hosting BPEL workflows http://www.ibm.com/developerworks/java/library/j-bpel-ioc2/index.html Deploying Web services with WSDL, Part 1: Introduction to Web services and WSDL http://www.ibm.com/developerworks/library/ws-intwsdl/ Securing Java applications with Acegi http://www.ibm.com/developerworks/library/j-acegi1/ Web Services Security, Part 1 http://www.xml.com/pub/a/ws/2003/03/04/security.html Web Services Security, Part 2 http://www.xml.com/pub/a/ws/2003/04/01/security.html Implementing XML Encryption in Java http://www.xml.com/pub/a/ws/2004/04/21/wss4j.html

    $35.00 /hr
    546 hours
    4.96
  10. Dolly Aswin Harahap

    Dolly Aswin Harahap

    Full Stack PHP Developer, LINUX, MySQL, MongoDB, PHPUnit, Vagrant

    Indonesia - Last active: 22 hours ago - Tests: 9 - Portfolio: 2

    I'm Zend Certified Engineer in PHP 5, Zend Framework 1 & 2. Have experience in LAMP about 9 years. And very familiar with UNIX environment. I use Ubuntu LINUX before and now I use Mac daily. I'm able to work with native PHP or use PHP Framework. I'm very experience in web application or creating an API for web application or use API from public API like Facebook, Google, Twitter, etc. I'm also experience in PHP Quality Assurance tools like PHPUnit, PHPCodeSniffer, PHPMD (Mess Detector) etc. And I'm also familiar with SCM (Source Code Management) like Git and SVN. Another skills I have are Doctrine ORM (I use this since 1.2 until Doctrine 2 now) and ODM, HTML5, jQuery, Apache, MySQL, sQlite, MongoDB, Vagrant, Zend Server, Zend Studio, and some Agile tools like JIRA, Continues Integration and Automation Build (e.g. Jenkins, Shippable) I also share my code with ZF 2 and MongoDB in github. You can check here https://github.com/dollyaswin/pyro/ So, please do not hesitate me. I'm experience on this field. And I'm Certified Developer. I'm very familiar with US Company, and my latest project is as Team Leader on US Auction Company. You can check my profile here So, please do not hesitate me. You can check my profile here http://www.zend.com/en/yellow-pages/ZEND010294 https://www.linkedin.com/in/dollyaswin https://github.com/dollyaswin

    Groups: Zend Certified Engineers

    $33.50 /hr
    3,853 hours
    4.64