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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, 4,711 JavaScript projects are completed every quarter on Upwork.

4,711

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 4.69.

4.69
Last updated: August 1, 2015
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  1. Diego Yungh

    Diego Yungh Agency Contractor

    Frontend Developer

    Brazil - Last active: 19 hours ago - Tests: 2

    I am a very friendly developer with more than 5 years in professional web developing. My strong points are Restful applications, Sockets and Dashboards. From raw JS to full-stack frameworks I can work in any environment, I will learn and adapt my knowledge and tools to your needs or provide you with insight and ideas if you give me the opening to. I am always testing bleeding edge technologies and learning the new resources for the web. It is also my job to be in tune the newest resources.

    Associated with: Yungh's

    $25.00 /hr
    1,788 hours
    0.00
  2. Oleksii A.

    JavaSE/JavaEE Developer, PhD in Information Security

    Ukraine - Last active: 09/19/2011 - Tests: 5

    Enterprise and Web Application Developer. PhD in Information Security. Especially interested in building complex (transactional, concurrent, secured, scalable etc) Java/J2EE based systems. Strive for creating systems based on sound technical designs by applying OO design concepts and software patterns.

    $38.89 /hr
    1,277 hours
    0.00
  3. Hiroshi Sugawara

    Hiroshi Sugawara

    Part timer

    Japan - Last active: 1 month ago - Tests: 3

    May. 2001- Oct. 2001 - Web programming and development (Java Servlet, Oracle) for an auction site - Curiocity Co., Ltd. (株式会社キュリオシティ http://web.archive.org/web/20041126051718/http://www.curio-city.com/help/ind_company.html ) 2002-2004, 2006-2007 - Teaching Assistant in Kogakuin University (工学院大学 http://www.kogakuin.ac.jp/) 2004-2006 - Web programming and development (Java Servlet, PHP, Perl, Oracle, MySQL, PostgreSQL) - Web Solutions Co., Ltd. (ウェブソリューションズ株式会社 http://web.archive.org/web/20070127031027/http://www.websolutions.co.jp/ ) 2007-2012 - some heavy physical work for construction of event site such festa and concert venue (Shinseikonpou Co., Ltd. (新成梱包株式会社 http://www.shinsei-group.co.jp/ ), Mash Co., Ltd. (株式会社マッシュ http://www.eventarbeit.com/company/profile/), Lineup Co., Ltd. (株式会社ラインナップ http://www.lineup-grp.jp/about/ ) ) 2013- The warehouse labor in SB Frameworks Co., Ltd. (SBフレームワークス http://www.sbfw.co.jp/info/profile/index.html) See also (Facebook) https://www.facebook.com/hiroshi.sugawara.505/about

    $16.67 /hr
    2,450 hours
    5.00
  4. Chalitha Wickramathilaka

    Chalitha Wickramathilaka

    Senior Backend Programmer / Tech Lead

    Sri Lanka - Last active: 19 hours ago - Tests: 2 - Portfolio: 15

    From almost 12 years I have been working with php based web applications. MVC, and Zend Framework 1/2 development environments. I have the same experience with java scripts /jQuery/extjs frameworks. I have more than 7 yrs experience on load balancing . Clustering , and replication over debian, centos and redhat systems. I use Oracle and mysql databases on most of my projects. As a code collaboration tool I am using Gforge with svn/git for my projects. also I have strong experience with iptv application such as tvguides, epg, music applications etc etc. I have been working on high loaded websites, application databases for my work. I have strong knowledge of optimizing web applications smooth run on a very high load. Also I have experience with hardware Visualization on VMware boxes. I have additional experience in ETL Jobs / Mysql clustering / Piranha / php heavy load balancing / caching nodes. Android / FB apps/ REDIS/VMware ESX configuration

    $33.33 /hr
    4,866 hours
    5.00
  5. Marek Bogatek

    Marek Bogatek

    Fullstack developer with inclination towards non trivial problems

    Poland - Last active: 9 days ago - Tests: 9 - Portfolio: 1

    I am a wizard. Seriously. I use rare combination of talent, skills and hard earned knowledge and experience to solve others' unsolvable problems. Wonders and miracles done immediately, impossible stuff with minor delay. Upwork is an opportunity to learn more and faster, and get myself involved in much more interesting, diverse projects that I would thought possible previously. Such cases were, for example, helping Panama based company OSOP with systems they use to predict (and provide warnings for) earthquakes in mid-America region; or a web crawling problem that was neglected by everyone passing through the Chegg Courserank project (creating the general solution for this took me to senior engineer position... and further, to team management); lately I was able to provide candidate and code reviews and design basic specifications for entirely novel software - and surely, such contracts showed up as well. You can see some of my previous private/hobby projects on github: http://github.com/zencodism ... and some social programmer activity at stackexchange sites under the same 'zencodism' login. So far, I've created numerous utilities and scripts (C / C++ / Python), a complex image manipulation and postproduction suite (C++ / asm / CUDA, worked on this as a member of a team), some visualisation software: for custom equipment (Java) and voice emotion recognition (Node.js), and a few web based projects (Python with Django, PHP, Perl, Groovy - working with a team on huge CRM system) including also long term contract regarding Java-based web scraping suite I both developed and managed the team involved. Further down the road I'm turning to web applications along with their server counterparts - everything from designing communication protocols with cryptography and some redundancy to a space simulation game I'm writing as a hobby. I can work in and administer various operating systems (Windows, Linux, *BSD, Solaris... this came in handy lately when web development job turned into disaster recovery of remote server), use several databases (mySQL, PL-SQL) and quite a few programming languages; even created one myself, just for fun. What will be next, may be up to you. Feel invited.

    $34.00 /hr
    2,352 hours
    4.72
  6. Jesus Enrique Gutierrez Cortazar

    Jesus Enrique Gutierrez Cortazar

    Senior Software Developer

    Mexico - Last active: 1 month ago - Tests: 5

    I'm a full-stacl software developer. I use to follow and implement code standards and also to audit and modify code for a better performance, knowledge and understanding. The best part is that i love what i do as i live for it. It's like i'm beeing payed for having lots of fun. Wait, that's true in fact!!! I love technology and development innovation and i when i'm sleeping i dream about code, implementations and deployments. I have experience developing professional enterprise software solutions under many technologies, mainly with Java and Ruby On Rails. I have good written and verbal english communication skills. I consider myself as proactive, responsible and can be part of any team work. It doesn't matter what's the problem to solve or what's the programming language to solve it, i can learn it and will solve it in the best possible way.

    $22.22 /hr
    1,413 hours
    5.00
  7. Mauricio Offermann Palma

    Mauricio Offermann Palma

    Computer Engineer

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

    I'm a Computer Engineer , during my career I have worked managing , designing and developing custom web applications for clients of different nature and in many different languages, but definitely my biggest strength is Salesforce APEX. My experience divided into three areas: Project Management We perform planning activities in the short term , while maintaining excellent communication with the customer , give daily reports on the progress of the project which include the activities performed, the problems encountered and the proposed solutions . Application Design Often the technical details make a big difference in implementation , which is why I worry about guiding the client presenting the best solution strategies , considering important issues such as security of information, the application performance , use of resources , the way they behave in the future scenarios with massive data loads or increased volumes of information. Software Development I believe that application development is my strongest skill have much experience in various languages ​​such as Java, C # or Ruby , mainly oriented web solutions , management naturally javascript ( including jQuery ) , CSS , JSP , HTML . Have special ability to manage MySQL , PostgreSQL , SQL Server and more databases. However, the last 7 years I have specialized in developing applications on the Salesforce CRM . These applications include design , process automation , configuration , workflows , validation rules , triggers, Visualforce pages, Apex classes and components . In addition to integrations with other systems using webservices and bulk batch .

    $40.00 /hr
    1,355 hours
    5.00
  8. Krastyo K.

    Krastyo K.

    Java/SQL/C++/C# Developer

    Bulgaria - Last active: 1 day ago - Tests: 2

    I have more than 15 years experience of Web and Desktop programming, using variety of technologies - web programming using Java or ASP.NET, JQuery, Ajax, HTML, CSS; SQL databases; different tools, services and applications with C++/C#. During my work carrier I have been involved in many projects, focused in various fields of interests - database driven web sites and applications, Windows desktop applications, CAD/CAM systems, MS-Office automation applications, device control systems, large database support applications.

    $20.00 /hr
    1,347 hours
    5.00