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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. Dieter K.

    Dieter K. Agency Contractor

    Development team

    Germany - Last active: 19 days ago - Tests: 2

    We are a small team of programmers from germany with 10 to 30 years experience in software development. We have done projects on a wide application range e.g. automation technics, advertisement, scientific and analytics, e-commerce, web-development, database administration, ERP, RFID and many more. Hopefully odesk will help us find new challenges.

    Associated with: Maple Forge Agency

    $29.99 /hr
    0 hours
    0.00
  2. Daniel B.

    Daniel B.

    Full Stack Startup CTO: Coder | DevOps | QA | Cloud

    Canada - Last active: 1 day ago - Tests: 1 - Portfolio: 1

    B"H I'm a software developer turned entrepreneur with an irrational desire to solve life's big problems using technology. I've been fascinated by programming and computers since age 14, and have a rich experience of over 15 years with a diverse set of software technologies. As CEO/CTO of a tech startup, I am the kind of generalist that is a jack of all trades and a master of all. On any given day of my week I need to be an excellent developer, tester, copy writer, marketing strategist, media expert, business and financial wizard, all while keeping the big picture and "vision" of the company in mind. Let me apply myself to your problem. Bring me onboard your team, and I will get the job done with spectacular results. I stand behind the quality of my work, the efficiency at which it is delivered, and the easy to maintain nature of my deliverables. SPECIALTIES Linux system administration (Ubuntu, Apache, MySQL, ElasticSearch, Sphinxsearch, RabbitMQ, ...) Clustered environments (CoreOS, Fleet, etcd) Containerization (Docker) Docker workflow design (containerizing environments for dev, staging & production for apps built in any language: PHP, Node, Ruby, Python, Haskell, ...) Cloud environments (AWS) Cloud migration (SoftLayer -> AWS, ...) Shell scripting (advanced Bash) Software development (PHP, C++, JavaScript, CSS3, HTML5) Configuration management (Puppet) Quality assurance (Selenium, PHPUnit) Continuous integration (Jenkins, Strider) Continuous deployment Monitoring and metrics (New Relic, Logstash, Kibana, Grafana, Graphite, Nagios, Seyren) User interface and user experience design (UI/UX) Product functional design and functional flow mapping Technical strategy Technical team building and leadership WORK ETHIC Development: Make it work, make it correct, then make it fast. Move quickly and break things, because better to get it into the user's hands than keep it in the engineer's head. Design: Less is more – remove decision points until it works like magic. Delight users at all costs with insane attention to detail. Quality management: Instrument all the things, since it's harder to improve what isn't being measured. If it's not being tested, it's already broken. Productivity: If it has to be done more than once, automate it; in a startup, don't automate for as long as you can. Refactoring should be opportunistic and shouldn't need management approval, because the broken windows syndrome in a codebase can bring a project to its knees. Technical strategy: Embrace valuable new things even if they're still half-cooked; the developers will usually work hard to smooth any bumps with surprising speed. Never throw out something that works just because something new came out; technology evangelism is an expensive sport. Management: Mentorship is key to developing the culture and organizational processes that will keep employees happy and increase their value to the company. Communicate the rules clearly, set the goalposts, then get out of the way and let the team shine. Exude passion or stay home. Leadership: Listen to and learn from everyone. When making decisions there is never enough information, and once there is it is usually too late. Grand plans tend to become obsolete before they are implemented, and old habits die hard; changes are most successful when they are small. KEYWORDS I've picked up many other skills over the years, so for easy reference and searchability on oDesk here is the keyword soup (in no particular order): ajax, json, api, html, css, smarty, zend framework, virtualbox, virtual machines, amazon cloud, dns, ftp, nagios, c++, eclipse, xdebug, software profiling, software optimization, software architecture, refactoring, software patterns, agile, test driven development, lean startup, minimal viable product (MVP), REST and RESTful design, software defined datacentre, continuous deployment, push to build, immutable infrastructure, redmine, project management, static code analysis, debugging, quality assurance, QA, testing, software verification, version control, subversion, power excel formulas, windows, macos, mac os x

    $155.56 /hr
    408 hours
    0.00
  3. Rui Pimentel

    Rui Pimentel

    Web Developer with more than 6 years of experience

    Portugal - Last active: 1 day ago

    Looking for a fast, viable and cheap web application? I have the solution for you! I'm an expert with more than 6 years of experience in development of all kinds of web applications, using PHP, Mysql, HTML 5, CSS 3, Jquery/Ajax... My main area is Web Crawling, based on PHP + cURL scripts developed from source, having already worked in thousands of different crawlers. Contact me, and I can assure you wont regret!

    $12.79 /hr
    1,825 hours
    0.00
  4. Ruslan Aksenov

    Ruslan Aksenov

    Web and SharePoint Developer with 4 years of experience

    Russia - Last active: 24 days ago - Tests: 4 - Portfolio: 6

    Good day =) I'm a highly skilled professional with 4 years of Web Development in total including ASP.NET (+MVC) and SharePoint. Have worked on 7 different large scaled projects so far including: The enterprise portals for - The biggest Russian Media Company VGTRK - Life Assistance Services Enterprise Portal - XFIT Enterprise Portal - PIONEER GROUP Enterprise Portal - BIN Insurance Enterprise Portal A BnB website on ASP.NET MVC technology (was developing it nearly 3 years ago during my university years) - http://arendadirect.ru/

    $14.00 /hr
    0 hours
    0.00
  5. Dwayne Ewens

    Dwayne Ewens

    Independent Contractor

    United States - Last active: 2 months ago - Tests: 1

    17 years Software Development and QA experience in testing client/server applications, ERP, CRM, and other web-based applications. Experience writing and negotiating requirement contracts for various industries including US Air Force / US Government., aircraft industry, commercial software, oil & gas, and education utilizing the SEI -CMM process for business infrastructure. SUMMARY • Strong application lifecycle management • Developed well interpretation applications for down hole devices and oil & gas surveys • Conducted reviews for testing, debugging and coding software in C++, Visual Basic, Fortran, and Java 7 • Provided analysis for sequencing and plotting oil & gas survey data • Managed and implemented new requirements and developing supporting documentation • Configured and setup project applications for deployment • Served as lead on deploying and configuring PeopleSoft Financial, HCM, CRM • Coded with Ruby on Rails, C++, Java and scripting with JavaScript • Developed software application in C++, C# and Visual Basic in Dev. Studio Desktop 2012

    Groups: LoginRadius

    $33.33 /hr
    0 hours
    0.00
  6. Oleksii Semilietov

    Oleksii Semilietov

    Software engineer

    Ukraine - Last active: 1 month ago - Tests: 1

    I'm experienced full-stack software engineer / architect with 10+ years experience. Over 7 last years I specialized in the development of automation systems for different business processes, multi-level-marketing billing systems, solutions based on Amazon AWS, gambling engines, integrating different payment systems, etc. Also I have ~3 years experience on position NOC (Network Operational Center) engineer in major ISP (Ukraine). Core stack of languages and technologies that I use most often for the work consists of Erlang, PHP, JavaScript, MySQL, Linux/FreeBSD, Nginx/Apache, *nix shell scripting, etc. Nowadays I'm interested in technologies stack such as: - Erlang; - Clustering, MapReduce and another architectures for distributing heavy tasks; - MQ-brokers (ZeroMQ, RabbitMQ); - Machine learning and data mining; - Realtime algo trading; - Solutions for BigData (e.g. Apache Hadoop; NoSQL solutions such as CouchDB/CouchBase, Riak, Redis, etc); - Embedded projects based on BeagleBone Black, Raspberry Pi, Arduino; - 3D-printing, prototyping, PCB-design. Feel free to contact me if you have interesting project. linkedin profile: https://linkedin.com/in/spylik

    $22.50 /hr
    0 hours
    0.00
  7. Nenad Vico

    Nenad Vico

    Architect

    Serbia - Last active: 25 days ago - Tests: 4 - Portfolio: 1

    Java Architect, Over 10 years of experience using: J2EE, Spring, Hibernate, JPA, Struts, GWT, Smart GWT, WebServices, Applets, Servlets, Swing, Swt, Ant, Maven, Apache libraries, Dods, Axis, JUnit, EasyMock, Dwr, JasperReports, Velocity, FreeMarker, Code generators, Twter4j, REST, POI, Fax4J, CXF, JSF, Spring Boot, Spring Rest, Spring Security, Spring Integration, Spring Batch, Hadoop, Cassandra, Hbase, Hive, Sqoop, Solr, Cammel, Angular, Bootstrap

    $27.78 /hr
    0 hours
    0.00
  8. Andre Mello

    Andre Mello

    Back End Developer

    United States - Last active: 30 days ago

    I am a web developer. I am a senior programmer with extensive knowledge of the back-end. I love what I do and I always strive for usability and performance in my work. A personal philosophy of mine is that in the world of programming anything is possible. I am always looking for ways to expand my knowledge of both computer programming and the world around me. I am a self-driven perfectionist and I immerse myself in the latest trends surrounding technological development. I am looking for challenging projects so that I can improve my techniques.

    $15.00 /hr
    0 hours
    0.00
  9. Andrey Markin

    Andrey Markin

    Developer

    Russia - Last active: 29 days ago - Tests: 3

    I'm a Java developer moved from financial markets modeling and algorithmic trading to software development and integration architecture. My experience varies from data analysis to python, java and javascript web frameworks to java backend development and server configurations. Long term relationships with clients are number one priority, but this doesn't mean I'm not interested in just-do-it monthly projects. As a selfish egoist I'm primarily looking for interesting ones.))) I'm flexible with my working hours and am able to work closely with any existing coworkers you work with. Making a contact is a perfect and surprisingly the shortest way to start cooperating. Yours Andrey).

    $8.89 /hr
    0 hours
    0.00
  10. Martin M.

    Martin M.

    Expert Web Developer

    Argentina - Last active: 12 days ago - Tests: 3 - Portfolio: 10

    Im a Software Engineer. I am passionate about web development and information technology in general. While I have been developing web applications for more than 10 years, I like to research and learn new technologies. If I get the opportunity to work with you, you will not regret it -Over 10 years experience in web development, LINUX + APACHE + MYSQL/ORACLE + PHP -I developed many cms based websites -I developed many web applications -I developed an ERP for Pharmacy Industry with traceability subsystem integrated to a government platform vía WEBSERVICES. -I developed a Geriatric Software. -I developed a Billing Software for Healthcare Client -I developed a customizable Government Website And more.... -Doctrine and Propel Experiences -Certified Oracle DBA. -Email Spooling -Lucene Index (fast searches) -Symfony Expert -Cake -JQuery, JQueryUI, Ajax, HTML, CSS. -MVC Pattern, IOC Pattern, OOP. -Experience in Oracle (SQL and PL/SQL), Mysql, PostgreSql, Firebird -Webservices implementations, Client and Server -Experience in Web application security (Xss, Crsf, SQL Injection, DoS Attack) -SVN -PHPUnit -Java, JSP, Servlet, Tomcat. -Experience in Streaming Platform: RED5

    $55.56 /hr
    0 hours
    0.00