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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, 4,622 JavaScript projects are completed every quarter on Upwork.

4,622

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: June 1, 2015
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  1. Joshua Mock

    Joshua Mock

    Front-end architect

    United States - Last active: 29 days ago - Tests: 3

    I'm a front-end architect with 14 years of web development experience. My strongest suits are planning and building highly interactive JavaScript applications in a web browser and building Node.js applications. I currently work on a team of 30 developers where I help vet new tools and frameworks for front-end development, and advise, assist and train product-building teams on the best tools for the projects they are assigned. I am highly skilled in JavaScript. I have built several front-end applications in Backbone.js, Marionette and React.js and am familiar with Ember.js as well. I'm also proficient in Python, PHP, HTML5 and CSS/SASS and somewhat capable in Ruby as well if the need arises.

    $90.00 /hr
    341 hours
    5.00
  2. Alain C.

    Alain C.

    Java, Web and Google Maps Engineer

    United States - Last active: 1 month ago - Tests: 2 - Portfolio: 5

    Experienced professional with 6 years of experience of Java/J2EE web projects. I have a good knowledge of Google products and APIs as well (Google Maps, KML/KMZ). I also have a strong testing background (JUnit, JMock, Cobertura, Concordion, Selenium, Webdriver...) and developed a couple of testing frameworks based on these technologies. Specialties include: Java, J2EE, JEE, KML, KMZ, Google, Maps API, Javascript, AJAX, XML, SAX, DOM, JAXB

    Groups: Application Developers Alliance

    $74.00 /hr
    22 hours
    4.91
  3. Michael Dodge

    Michael Dodge

    Responsive Front-End Web Developer (HTML5, CSS3, jQuery, PHP)

    United States - Last active: 12 days ago - Tests: 7

    I have been doing web development for over 13 years professionally. My strongest talents are in cross-browser, mobile-friendly front-end development, but my experience includes a great deal of back-end work as well. My qualifications are as follows: • Expertise in PHP, HTML5, CSS, jQuery/Javascript, and other web technologies • Expetise coding websites to be cross-browser compatible, responsive, and SEO friendly • Experience creating and maintaining MySQL databases • In-depth knowledge of WordPress, CodeIgniter, and other CMS systems and development frameworks • Expertise with entire Adobe Creative Suite • Experience setting up and maintaining multiple LAMP stack web servers • Knowledgeable about computer hardware (have built several personal computers and servers from the ground up) • Expertise with all major desktop Operating Systems and Linux command line I have programmed multiple websites of various types, and my duties included CMS configuration, creating and implementing custom APIs, as well as programming simpler brochure websites. I know how to configured web servers in shared hosting environments as well as dedicated VPS solutions. I have built websites which included HIPAA compliant storage and retrieval of customer information, event calendars, and document/image management. I have developed sites which required server load balancing and customer notification systems. I have configured GitLab servers for management of source code repositories, utilizing automated deployment of websites using commit hooks. While I am currently employed full time, I do freelance work to have fun and learn new things. The web is constantly changing, and I aim to keep up with new trends, determine which ones are destined to fade or flourish, and add the appropriate skills to my repertoire to provide high quality code to everyone I work for.

    $41.00 /hr
    154 hours
    4.94
  4. Sean Rogers

    Sean Rogers

    Designer & Front-end Developer

    United States - Last active: 1 day ago - Portfolio: 11

    I'm a web designer/developer focusing on Wordpress design, custom themes, and mobile-first websites. I aim to provide elegant, typography oriented, (often minimalist in style) designs that focus attention on your content. With Wordpress I work with the predominately Genesis framework to customize or create clean child themes with that load quick, have excellent security, and are easy to maintain. Bonus points: I'm constantly learning and enjoy working in other mediums for design, with a particular leaning towards book design & layout and video production. Prior to becoming a freelancer I worked for five years in tech support, systems administration, and technology education positions. Additional portfolio items (often for personal projects) can be found here: https://www.behance.net/seanprogers

    $44.00 /hr
    29 hours
    4.95
  5. Aaron Gardner

    Aaron Gardner

    Expert Web Developer, 15+yrs Marketing+Sales, 5+yrs REALTOR

    United States - Last active: 15 days ago - Tests: 7 - Portfolio: 20

    Are you looking for someone who has extensive experience with marketing, sales, lead generation, affiliate marketing, email marketing, or residential real estate? Do you need someone with awesome communication skills, a solid understanding of web design, and swell English? (Yep..."swell".) Are you a fellow entrepreneur/internet marketer who needs to customize your unique project in a way that matches your style and branding? If you answered "Yes" to any (or all) of the above, send me an interview request today. I always aim to exceed my clients' expectations, and a review of my client feedback will confirm this. I'm looking for interesting projects in the following areas (preferably in the real estate industry, but open to interesting alternatives): - light web design work/customization/consulting for real estate agents & brokers - lead generation / internet marketing consulting for real estate agents & brokers - automation consulting (I can help you get rid of time-consuming / redundant / redundant tasks so you can focus on more important things) Preferred Contracts: - $300 minimum (if flat rate) - Less than 5 hours per week (if hourly) Send an interview request today and let's see how I can make your project a smashing success! I've been designing websites, graphics, spreadsheets and software for over 17 years, over 95% from scratch. My specialty is the area having to do with "Direct Response" methods of lead generation, having studied almost every Dan Kennedy book and dozens of self-study courses over the years. I eat, breathe, sleep and dream sales and marketing. You think like an entrepreneur, and so do I...because that's almost all I've known for over a decade. I've been self-employed in some form my entire adult life. Borderline-obsessive work ethic is just another day at the office. I've gone through Tim Ferriss' "4-Hour Work Week" almost a dozen times. GAME. CHANGER. If you've read it, you know what I mean. If you haven't: read it. Real Estate Experience: - licensed residential real estate agent since 2005 - full-time real estate agent 2005-2010 - worked with investors, relocation companies - former real estate Board member + teacher Web Design And Lead Generation: I have spent the past 9 years working extensively with: - Custom landing pages/"Squeeze Pages" (many for the Real Estate niche) - AWeber + GetResponse automated email delivery services - Loan Pre-Qualification forms (designed for real estate agents + residential lenders) - Tons of form-filling processes and data capture on the web - Wordpress integration, theme customization, and theme-building - Internet Video integration - PDF/eBook generation - Fixing bugs so sites display correctly (a necessary evil) Sales & Marketing: - I've been selling enthusiastically since the age of 5 (it started with selling pencils door-to-door. I made $2.50 in 15 minutes. My mom yelled at me and made me return the money. It was on this day that my disdain for authority was born...) - I own (and actually completed) more sales, marketing, real estate investing, and real estate agent training courses than I can count (over 100 at least) - I hired a professional sales and marketing coach for approximately two years while practicing real estate, and amassed a well-rounded business education along the way - Barely old enough to vote, I spent 3 years selling telecommunications service and building sales teams I've also spent more time than I can count on: - Writing custom email campaigns - Writing eBooks and Free Reports for website give-aways - Designing custom graphics, flyers, and advertisements - Designing website elements (logos, buttons, banner graphics, backgrounds, etc) - Copy writing / sales letters (long- and short-form) Long story short: I have a strong background in the many aspects of internet-based sales and marketing, I love sales and marketing, and I'm a stickler for details. Send me an interview request today and let's see how I can be an asset to your project! I'm very familiar with the following languages and tools (if your project requires them): - HTML / PHP / CSS - Javascript / jQuery / jQuery Mobile / AJAX - Adobe Photoshop / PSD-to-HTML - MySQL databases (and website integration) - Microsoft Excel (I've designed hundreds of custom spreadsheets and 3 complete software solutions for myself and clients) If you're looking for a developer or content writer with a strong background in the finer points of sales and marketing, one with an obsession over the details, one with a thorough understanding of what it takes to generate you more business and get you more email subscribers, send me an interview request today and let's see if we're a match.

    Groups: LoginRadius

    $49.99 /hr
    134 hours
    5.00
  6. Devasia Joseph

    Devasia Joseph

    Web and Mobile Development Consultant Architect

    India - Last active: 19 hours ago - Tests: 2 - Portfolio: 1

    Full stack developer, architect and consultant for web and mobile development. I have over 9 years of experience developing complex applications in various technology platforms such as Java .Net,Python, PHP, Javascript, Clojure iOS and Android Platforms. Although my current choice of technology is Clojure running on Java platform I am open to working with other tech stacks too. I have a bachelor's degree in Engineering.

    $35.00 /hr
    514 hours
    5.00
  7. Mercy McCulloch

    Mercy McCulloch

    Artist and Graphic Designer with Programming Experience

    United States - Last active: 19 hours ago - Tests: 4 - Portfolio: 13

    I am a graphic designer and artist. I love making brochures, game assets, web designs, cd covers, you name it. I have 3D and 2D knowledge and NEVER use templates. I have been freelancing graphic design and art for over 6 years now. I also have extensive knowledge in Unity 3d, php, java, java script, perl, c#, html, flash and more. Communication is very important to me, one of the reasons why I majored in Cross Cultural Studies, Mass Communication and know a few languages. I have clients in India, Australia, Russia, UK, America and Mexico which has helped me maintain my languages I've learned.

    $40.00 /hr
    15 hours
    5.00
  8. Jordan Ringenberg

    Jordan Ringenberg

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

    United States - Last active: 1 month ago - Tests: 3 - Portfolio: 1

    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

    $78.00 /hr
    106 hours
    5.00
  9. Roman V.

    Roman V.

    Web developer

    Russia - Last active: 19 hours ago - Tests: 12 - Portfolio: 12

    Lately my work is about integrating Bitcoin-related functionality in websites or developing special purpose apps, like a bitcoin trading bot or a websocket chat. It involved various technologies: node.js, websockets, Ruby, Sinatra framework, Blockchain.info API, PayPal API. During the years of my work prior to this I've performed a big variety of tasks in developing and reworking websites. This involved a lot of programming with PHP+MySQL, layout works with HTML+CSS, Javascript (with and without jQuery), AJAX. I had experience working with various CMSs: OpenCart, Joomla!, Wordpress, MODx Revolution, DataLife Engine, SimplaCMS, self-written websites. Also with different frameworks: MODx, Yii, also self-written MVC structures. I also use regular expressions (RegExp) fluently and have quite some experience with that. I've integrated a number of payment systems in several websites, which included PayPal, Bitcoin (native and via Blockchain.info API) and russian WebMoney, Yandex.Money, QIWI, Robokassa. All payment processors utilize mainly same principles, so it's no problem to learn and integrate something new quickly. My work included creation of web grabbers and parsers that process information from external websites, for example to fill up an online store database. Also setting up and administrating Linux/FreeBSD VPS servers: installation and configuration of Apache, PHP, MySQL, Python and some other uncommon software. Aside from pure web, I've developed Python and Ruby scripts for various services. A part of that was developing Bitcoin-related services, including API communication with bitcoind daemon, automated receiving/sending Bitcoin payments, trading on BTC exchanges via their API, and other stuff. I'm looking for interesting work opportunities that would let me develop my skills and acquire new ones. Cryptocurrencies are especially interesting to me, but if it's not the case, no problem. Most likely I can be useful to solve your programming issues, so feel free to contact me.

    $40.00 /hr
    242 hours
    5.00
  10. Patrick Sullivan

    Patrick Sullivan

    Expert Web & Graphic Designer, Photoshop pro, CSS3 HTML5 jQuery skills

    United States - Last active: 4 days ago - Tests: 8 - Portfolio: 16

    My name is Patrick Sullivan, I have a Bachelor's Degree in Visual Communications, and I own a small business operating in Hammonton, New Jersey. My focus is on Web Design & Development, Graphic Design, Screen Printing, and printed products. I am especially passionate about Web Design, Front End Development, working in Photoshop, and the Oxford comma. In addition to the aforementioned skills, I have spent countless hours developing for Wordpress and Shopify, so if you have a specific need in either of these platforms, I can probably help you. I offer competitive pricing on all projects, while maintaining great communication with clients as well as a hard work ethic. My location in New Jersey guarantees that I can be in touch with customers in the US and Canada during normal business hours. For hourly jobs, I only log hours spent coding or designing, not for consultations, emailing, or other communications. Most revisions are also off the clock.

    $34.99 /hr
    272 hours
    5.00