{"id":36149,"date":"2022-12-09T08:00:00","date_gmt":"2022-12-09T07:00:00","guid":{"rendered":"https:\/\/www.freelancermap.com\/blog\/?p=36149"},"modified":"2022-12-09T13:56:30","modified_gmt":"2022-12-09T12:56:30","slug":"what-does-javascript-developer-do","status":"publish","type":"post","link":"https:\/\/www.freelancermap.com\/blog\/what-does-javascript-developer-do\/","title":{"rendered":"What Does A JavaScript Developer Do?"},"content":{"rendered":"\n<p><strong>Javascript developers develop and design software and applications using the programming language JavaScript. They are responsible for maintaining and testing these applications as well as performinging code analysis and improving overall functionality and usability. What Does A JavaScript Developer Do?<\/strong><\/p>\n\n\n<div class=\"mks_col \">\n<div class=\"mks_one_third \"><div class=\"su-box su-box-style-default\" id=\"\" style=\"border-color:#1c1d1f;border-radius:3px;\"><div class=\"su-box-title\" style=\"background-color:#4f5052;color:#FFFFFF;border-top-left-radius:1px;border-top-right-radius:1px\">Role overview<\/div><div class=\"su-box-content su-u-clearfix su-u-trim\" style=\"border-bottom-left-radius:1px;border-bottom-right-radius:1px\"> <span style=\"color: #000000;\"><a style=\"color: #000000;\" href=\"#Introduction\">What is JavaScript?<\/a><\/span><br \/>\n<span style=\"color: #000000;\"><a style=\"color: #000000;\" href=\"#Responsibilities\">Responsibilities<\/a><\/span><br \/>\n<span style=\"color: #000000;\"><a style=\"color: #000000;\" href=\"#Skills\">Skills<\/a><\/span><br \/>\n<span style=\"color: #000000;\"><a style=\"color: #000000;\" href=\"#Background\">Background<\/a><\/span><br \/>\n<span style=\"color: #000000;\"><a style=\"color: #000000;\" href=\"#Salary\">Salary<\/a><\/span><br \/>\n<\/div><\/div><\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"Introduction\">What is JavaScript?<\/h2>\n\n\n\n<p><strong>JavaScript<\/strong>, also known as <strong>JS<\/strong>, is a <strong>scripting language used by web developers <\/strong>to create interactive web pages, software and applications.\u00a0<\/p>\n\n\n\n<p>One of the most popular and most commonly used programming languages in web development, JavaScript<strong> can be used to add interactive functionality<\/strong> and other dynamic web content to web pages.\u00a0<\/p>\n\n\n\n<p>In our <a href=\"http:\/\/www.freelancermap.com\/market-study\">latest study<\/a>, JavaScript was the second most-voted programming language (38%) &#8211; only after Python (44%) &#8211; when we asked which programming languages will become more important in the future.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" data-src=\"https:\/\/lh6.googleusercontent.com\/03ZetNmOeaNKFddZkrG-T2KDYtVKI4OWt0hTN-0YYctYuAnrmpO7LAWH_UqmDS3MNXis5G06N5e0mJmjmExZSUDTKl2ymCWKMNrVzwbsoGmtbADtYSINqNQMW4Nv3KieLmJS3IXRyE-ezk1Z4daXW8LOP4C-ZxQS_9wuEvxvdkpMXOtCh4_poq4AaAsdYg\" alt=\"Freelancer Survey Study 2022 - Programming Languages\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" \/><figcaption>Freelancer Survey Study 2022 &#8211; Programming Languages<\/figcaption><\/figure>\n\n\n\n<p>Also the Stack overflow developer survey 2022 put JavaScript as the most commonly used programming language for the 10th time.<\/p>\n\n\n\n<p>JavaScript is supported by all the major browsers and is widely used in <a href=\"https:\/\/www.freelancermap.com\/blog\/career-insights-front-end-developer\/\">front-end development<\/a>. However, it has also gained popularity in <strong>back-end development<\/strong> through frameworks like <strong>Node.js, Express or Meteor<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Is JavaScript high in demand?&nbsp;<\/h3>\n\n\n\n<p>JavaScript is <strong>in high demand<\/strong> and, as stated above, is one of the most popular languages used by developers. According to reports published by <a href=\"https:\/\/www.developernation.net\/developer-reports\/dn21\">Developer Nation<\/a>, <strong>16.5 million developers made use of JavaScript in 2021<\/strong>, a staggering 4 million more than the year before.<\/p>\n\n\n\n<p>Employers constantly search for JavaScript developers as it\u2019s a powerful tool to create dynamic website elements.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" data-src=\"https:\/\/lh5.googleusercontent.com\/OHVMh9Ed0DoujydnowmaGLQdrVKEr240wLyFqBwfezBJHxESuIC_ZnS-rzlIgqRuQpX5u9-RcmnYqO_L4psYyP1R74uNHJUZk3OggNIfOt1WkJBHFErEhLFlekjL1me4C5ZIRw2nYj5mVPi2B3t_-CKLrFwHLXtUO3uUtvC4V0IuGseEgScnGaXnJhuH-w\" alt=\"Role Overview - JavaScript Developer\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" \/><figcaption>Role Overview &#8211; JavaScript Developer<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"Responsibilities\">JavaScript job description: What are JS developers responsible for?<\/h2>\n\n\n\n<p><strong>JavaScript developers<\/strong> are responsible for <strong>designing, developing and maintaining web applications using JavaScript <\/strong>as well as developing new <strong>user-facing features<\/strong> to support internal and external clients.\u00a0<\/p>\n\n\n\n<p>They manage and code automated test scripts, and<strong> ensure the technical feasibility of UI\/UX designs.<\/strong> They also analyse code, and make sure the software is reliable.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" data-src=\"https:\/\/lh3.googleusercontent.com\/jPjJs67i9CoBlXacdGwTiuAAwA2-zo13sQ2g54XBZlHvMkhyWeY8Ci7xNS_fVX5vscP-GjEJBWsXPLaag66ICVsvTTi3WgUFgOeI4QKwDR_lVfjjVNx8EwfPP5-tPbO1Y2WOv2wlfC7iy6R1fHWE6cM_PJiEosAENBASr1MdWJnUVDiObRytoyeOXuWsrA\" alt=\"Responsibilities of a JavaScript Developer\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" \/><figcaption>Responsibilities of a JavaScript Developer<\/figcaption><\/figure>\n\n\n\n<p><strong>JavaScript developers<\/strong> optimise the applications they work on for maximum speed and scalability and are responsible for enhancing performance of the main front-end website of their clients.<\/p>\n\n\n\n<p>Although this professional usually focuses on the <strong>front-end,<\/strong> the programming language is not limited to this use only. Thanks to Node.js, its use has also become popular in <strong>back-end development <\/strong>and some JavaScript developers could also responsible of the server-side sometimes.<br><\/p>\n\n\n\n<p><strong>What are the responsibilities of a JavaScript developer?<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Design, develop and maintain applications using JavaScript<\/li><li>Develop new user-facing features<\/li><li>Support internal and external clients<\/li><li>Manage and code automated test scripts<\/li><li>Ensure feasibility of UI\/UX designs<\/li><li>Analyse code to ensure software is reliable<\/li><li>Optimise applications for maximum speed and scalability<\/li><li>Enhance performance of the main front-end website<\/li><li>Collaborate with front-end and back-end web developers<\/li><li>Develop new features<\/li><\/ul>\n\n\n\n<p style=\"background-color:#41c0eb;color:#ffffff;font-size:18px\" class=\"has-text-color has-background has-text-align-center\"> Looking for a JavaScript project?<br><a href=\"https:\/\/www.freelancermap.com\/it-projects.html?filter=&amp;excludeDachProjects=on&amp;newQuery=javascript&amp;continents=&amp;countries=&amp;states=&amp;city=&amp;radius=&amp;query=&amp;excludeDachProjects=true&amp;sort=1&amp;utm_source=blog&amp;utm_medium=career-EN\">Find the right one here<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"Skills\">Skills of a JavaScript developer<\/h2>\n\n\n\n<p>JavaScript developers have a <strong>strong understanding of JavaScript<\/strong> as well as experience in using web technologies such as <strong>HTML and CSS<\/strong>.<\/p>\n\n\n\n<p>These developers have extensive knowledge when it comes to <strong>JavaScript libraries and frameworks <\/strong>such as <strong>AngularJS<\/strong> and <strong>KnockoutJS,<\/strong> and are often proficient in full-stack web development.<\/p>\n\n\n\n<p><strong>JS developers<\/strong> are<strong> familiar with JavaScript module loaders<\/strong>, such as <strong>Require.js<\/strong> and are able to work with front-end build tools such as <strong>Grunt and Gulp.js<\/strong>. They are also experts in writing cross-browser code and are able to work with the version control system <strong>Git.<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" data-src=\"https:\/\/lh3.googleusercontent.com\/fL4RC6SDbc7xfUGjqp4M99vtaitSwNPTse3mlsgQV6646e7TxRx7idwiQk0P3AxT_aFEoYeF69U1_SllugKx3vBWqVwyhvTk96c-9kWiVRvArbgJWk-cwiIfoV8rWJJkQDdB-Gf1JtlTKd9xF8m5hPaGCUfRGchdO4xt7iIKg77e2hVHCN4VjwtPVjBbhQ\" alt=\"Skills Of A JavaScript Developer\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" \/><figcaption>Skills Of A JavaScript Developer<\/figcaption><\/figure>\n\n\n\n<p><strong>JavaScript developers<\/strong> have exceptional communication and organisational skills as well as optimisation and troubleshooting skills.<\/p>\n\n\n\n<p><strong>Is JavaScript a skill? <\/strong>JavaScript<strong> is a skill that is essential for most web developers.<\/strong> This is mostly because it allows them to add complex features and functionalities to websites and helps them meet client demands.<\/p>\n\n\n\n<p><strong>What are the skills of a JavaScript Developer?<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Strong knowledge of JavaScript\u00a0<\/li><li>Experience in using web technologies such as HTML and CSS<\/li><li>Extensive knowledge of JavaScript libraries and frameworks such as AngularJS, Vue.js, jQuery, etc.\u00a0<\/li><li>Familiarity with JavaScript module loaders, such as Require.js<\/li><li>Ability to work with front-end build tools such as Grunt and Gulp.js<\/li><li>Familiarity with different platforms, browsers (compatibility and functionality)<\/li><li>Expertise in writing cross-browser code<\/li><li>Ability to work with the version control system Git<\/li><li>Knowledge of UI\/UX concepts<\/li><li>Proficiency in full-stack web development<\/li><li>Exceptional communication skills<\/li><li>Good organisational and optimisation skills\u00a0<\/li><li>Strong analytical thinking<\/li><\/ul>\n\n\n\n<div class=\"wp-block-group has-background\" style=\"background-color:#5200ff\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"has-text-align-center has-text-color has-background has-link-color wp-elements-6d82840a84b8da60ba6e070480373475\" style=\"color:#ffffff;background-color:#5200ff;font-size:16px\"><br>Join our <strong>IT freelancer community<\/strong> today! Create your freelance profile in just <strong>2 minutes<\/strong>.&nbsp;&nbsp;<\/p>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><div class=\"su-button-center\"><a href=\"https:\/\/www.freelancermap.com\/registration?ref=blog-com\" class=\"su-button su-button-style-default\" style=\"color:#5200FF;background-color:#3CFFD0;border-color:#30cca7;border-radius:20px\" target=\"_self\"><span style=\"color:#5200FF;padding:0px 20px;font-size:16px;line-height:32px;border-color:#77ffdf;border-radius:20px;text-shadow:none\"> <strong>Sign up for free!<\/strong><\/span><\/a><\/div><\/br><\/p>\n<\/div><\/div>\n\n\n\n<p><\/p>\n<\/div><\/div>\n\n\n\n<p><\/p>\n<\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"Background\">How can I be a Javascript Developer?<\/h2>\n\n\n\n<p>The first step to <strong>becoming a JavaScript developer<\/strong> is usually obtaining a degree. This could be in <strong>Computer Science, Engineering, MIS, Math<\/strong>, or a related field. However, a college degree is not a mandatory requirement to work as a JS developer if you can prove your skills.<\/p>\n\n\n\n<p>In general, proven experience in programming is the key to qualify for most development jobs.<\/p>\n\n\n\n<p>There are also numerous courses and certifications that you can obtain online, including an official certification from <a href=\"http:\/\/www.javascriptinstitute.org\">JavaScript Institute.<\/a><\/p>\n\n\n\n<p>You can check options for these courses down below:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><a href=\"https:\/\/www.coursera.org\/professional-certificates\/meta-front-end-developer\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\" (opens in a new tab)\">Meta Front-End Developer Professional Certificate<\/a><\/li><li><a href=\"https:\/\/www.coursera.org\/learn\/html-css-javascript-for-web-developers\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\" (opens in a new tab)\">HTML, CSS, and Javascript for Web Developers<\/a><\/li><li><a href=\"https:\/\/www.udemy.com\/course\/the-complete-web-development-bootcamp\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\" (opens in a new tab)\">The Complete 2023 Web Development Bootcamp<\/a><\/li><li><a href=\"https:\/\/www.javascriptinstitute.org\/javascript-certification\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\" (opens in a new tab)\">Java Script Certification<\/a><\/li><\/ul>\n\n\n\n<p style=\"background-color:#41c0eb;color:#ffffff;font-size:18px\" class=\"has-text-color has-background has-text-align-center\"><a href=\"https:\/\/www.freelancermap.com\/freelancers-directory.html?filter=&amp;newQuery=javascript&amp;continents=&amp;countries=&amp;states=&amp;city=&amp;radius=&amp;query=&amp;excludeDachRegion=0&amp;sort=1&amp;utm_source=blog&amp;utm_medium=career-EN\">Find JavaScript developers here<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"Salary\">Salary of JavaScript Developer<\/h2>\n\n\n\n<p>The<strong> salary of a JavaScript developer <\/strong>who is just starting their career is somewhere around <strong>$74,000<\/strong> in the USA whereas the salary of one who has extensive training and skills is about <strong>$175,000. <\/strong>The <strong>average salary of a JS developer is $115,000.\u00a0<\/strong><\/p>\n\n\n\n<p>Salaries vary depending on the professional experience, the certifications, the urgency of the hire, or the location.<\/p>\n\n\n\n<p>In <strong>Germany<\/strong>, the salary range for <strong>JavaScript developers<\/strong> is <strong>\u20ac45,000 &#8211; \u20ac75,000<\/strong> whereas in the UK, the range is <strong>\u00a352,500 &#8211; \u00a372,000.\u00a0<\/strong><\/p>\n\n\n\n<p><strong>How much do JavaScript developers make?<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"\"><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">US<\/td><td class=\"has-text-align-center\" data-align=\"center\">$74,000 &#8211; $175,000<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Germany<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u20ac45,000 &#8211; \u20ac75,000<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">UK<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u00a352,500 &#8211; \u00a372,000<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>How much do freelance JavaScript developers make?<\/strong><\/p>\n\n\n\n<p>According to the freelancermap rate index in December 2022, <strong>Freelance JS developers make on average $60\/hour.\u00a0<\/strong><\/p>\n\n\n\n<p>Freelance rates of <strong>JavaScript experts <\/strong>range between <strong>$24<\/strong> and <strong>$85<\/strong> for most freelancers working in the industry.<\/p>\n\n\n\n<p>If you consider an 8-hour working day, the daily rate for developers would be around <strong>$480\/day.<\/strong><\/p>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\"><div class=\"su-expand su-expand-collapsed su-expand-link-style-default\" data-height=\"100\"><div class=\"su-expand-content su-u-trim\" style=\"color:#333333;max-height:100px;overflow:hidden\">\n<a href=\"\/blog\/what-does-dot-net-developer-do\/\">.NET developer<\/a> \u2022 <a href=\"\/blog\/what-does-help-desk-support-do\/\">1st Level Support<\/a> \u2022 <a href=\"\/blog\/what-does-second-level-support-do\/\">2nd level support<\/a> \u2022 <a href=\"\/blog\/what-does-third-level-it-support-do-\/\">3rd level support<\/a> \u2022 <a href=\"\/blog\/what-does-aem-developer-do\/\">AEM Developer<\/a> \u2022 <a href=\"\/blog\/what-does-ai-engineer-do\/\">AI Engineer<\/a> \u2022 <a href=\"\/blog\/career-insides-automation-engineer\/\">Automation Engineer<\/a> \u2022 <a href=\"\/blog\/what-does-automotive-engineer-do\/\">Automotive Engineer<\/a> \u2022<a href=\"\/blog\/what-does-blazor-developer-do\/\">Blazor Developer<\/a> \u2022 <a href=\"\/blog\/what-does-blockchain-engineer-do\/\">Blockchain Engineer<\/a> \u2022<a href=\"\/blog\/what-does-blogger-do\/\">Blogger<\/a> \u2022<a href=\"\/blog\/what-does-brand-manager-do\/\">Brand Manager<\/a> \u2022 <a href=\"\/blog\/what-does-it-business-analyst-do\/\">Business Analyst<\/a> \u2022 <a href=\"\/blog\/what-does-business-coach-do\/\">Business Coach<\/a> \u2022 <a href=\"\/blog\/what-does-it-business-analyst-do\/\">Business Intelligence Consultant<\/a> \u2022 <a href=\"\/blog\/what-does-business-intelligence-developer-do\/\">Business Intelligence Developer<\/a> \u2022 <a href=\"\/blog\/what-does-big-data-engineer-do\/\">Big Data Engineer<\/a> \u2022 <a href=\"\/blog\/what-does-c-plus-plus-do\/\">C++ Developer<\/a> \u2022 <a href=\"\/blog\/what-does-change-manager-do\/\">Change Manager<\/a> \u2022  <a href=\"\/blog\/what-does-chief-data-officer-do\/\">Chief Data Officer<\/a> \u2022  <a href=\"\/blog\/what-does-chief-growth-officer-do\/\">Chief Growth Officer<\/a> \u2022  <a href=\"\/blog\/what-does-chief-technology-officer-cto-do\/\">Chief Technology Officer<\/a> \u2022<a href=\"\/blog\/what-does-citizen-data-scientist-do\/\">Citizen Data Scientist<\/a> \u2022<a href=\"\/blog\/what-does-citrix-administrator-do\/\">Citrix Administrator<\/a> \u2022<a href=\"\/blog\/what-does-claims-manager-do\/\">Claims Manager<\/a> \u2022 <a href=\"\/blog\/what-does-cloud-architect-do\/\">Cloud Architect<\/a> \u2022  <a href=\"\/blog\/what-does-cloud-developer-do\/\">Cloud Developer<\/a> \u2022 <a href=\"\/blog\/what-does-cnc-programmer-do\/\">CNC Programmer<\/a> \u2022 <a href=\"\/blog\/what-does-cobol-programmer-do\/\">Cobol Programmer<\/a> \u2022 <a href=\"\/blog\/what-does-cognos-developer-do\/\">Cognos Developer<\/a> \u2022 <a href=\"\/blog\/what-does-compliance-manager-do\/\">Complience manager<\/a> \u2022<a href=\"\/blog\/what-does-computer-engineer-do\/\">Computer Engineer<\/a> \u2022<a href=\"\/blog\/what-does-computational-linguist-do\/\">Computational Linguist<\/a> \u2022 <a href=\"\/blog\/what-does-configuration-manager-do\/\">Configuration manager<\/a> \u2022 <a href=\"\/blog\/career-insights-content-manager\/\">Content manager<\/a> \u2022 <a href=\"\/blog\/what-does-control-systems-engineer-do-\/\">Control Systems Engineer<\/a> \u2022 <a href=\"\/blog\/what-does-cryptographer-do-\/\">Cryptographerr<\/a> \u2022 <a href=\"\/blog\/what-does-cyber-security-consultant-do\/\">Cybersecurity consultant<\/a> \u2022 <a href=\"\/blog\/what-does-cyber-threat-intelligence-analyst-do\/\">Cybersecurity consultant<\/a> \u2022 <a href=\"\/blog\/what-does-data-architect-do\/\">Data Architect<\/a> \u2022 <a href=\"\/blog\/what-does-data-artist-do\/\">Data Artist <\/a> \u2022 <a href=\"\/blog\/what-does-data-analyst-do\/\">Data Analyst<\/a> \u2022 <a href=\"\/blog\/what-does-database-administrator-do\/\">Database Administrator<\/a> \u2022 <a href=\"\/blog\/what-does-database-developer-do\/\">Database Developer<\/a> \u2022 <a href=\"\/blog\/what-does-data-modeler-do\/\">Data Modeler<\/a> \u2022 <a href=\"\/blog\/what-does-data-quality-manager-do\/\">Data Quality Manager<\/a> \u2022 <a href=\"\/blog\/what-does-data-steward-do\/\">Data Steward<\/a> \u2022<a href=\"\/blog\/what-does-data-warehouse-developer-do\/\">Data Warehouse Developer<\/a> \u2022 <a href=\"\/blog\/what-does-delphi-programmer-do\/\">Delphi Programmer<\/a> \u2022<a href=\"\/blog\/what-does-devops-engineer-do\/\">DevOps Engineer<\/a> \u2022 <a href=\"\/blog\/what-does-desktop-support-engineer-do\/\">Desktop Support Engineer<\/a> \u2022 <a href=\"\/blog\/what-does-digital-forensics-analyst-do\/\">Digital Forensics Analyst<\/a> \u2022<a href=\"\/blog\/what-does-digital-marketing-consultant-do\/\">Digital Marketing Consultant<\/a> \u2022 <a href=\"\/blog\/what-does-e-commerce-manager-do\/\">E-commerce Manager<\/a> \u2022 <a href=\"\/blog\/what-does-edi-specialist-do\/\">EDI Specialist<\/a> \u2022 <a href=\"\/blog\/what-does-electrical-engineer-do\/\">Electrical Engineer<\/a> \u2022 <a href=\"\/blog\/what-does-electronics-engineer-do\/\">Electronics Engineer<\/a> \u2022  <a href=\"\/blog\/embedded-software-engineer\/\">Embedded Software Engineer<\/a> \u2022 <a href=\"\/blog\/what-does-erp-consultant-do\/\">ERP Consultant<\/a> \u2022 <a href=\"\/blog\/what-does-etl-developer-do\/\">ETL Developer<\/a> \u2022 <a href=\"\/blog\/what-does-firmware-engineer-do\/\">Firmware Engineer<\/a> \u2022 <a href=\"\/blog\/what-does-financial-analyst-do\/\">Financial Analyst<\/a> \u2022<a href=\"\/blog\/what-does-financial-manager-do\/\">Financial Manager<\/a> \u2022 <a href=\"\/blog\/what-does-fpga-engineer-do\/\">FPGA Engineer<\/a> \u2022 <a href=\"\/blog\/career-insights-front-end-developer\/\">Front End Developer<\/a> \u2022 <a href=\"\/blog\/what-does-full-stack-developer-do\/\">Full Stack Developer<\/a> \u2022 <a href=\"\/blog\/what-does-functional-analyst-do\">Functional Analyst Developer<\/a> \u2022  <a href=\"\/blog\/what-does-game-designer-do\/\">Game Designer<\/a> \u2022<a href=\"\/blog\/what-does-game-programmer-do\/\">Game Programmer<\/a> \u2022 <a href=\"\/blog\/what-does-gis-developer-do\/\">GIS Developer<\/a> \u2022  <a href=\"\/blog\/what-does-graphic-designer-do\/\">Graphic Designer<\/a> \u2022<a href=\"\/blog\/what-does-hadoop-developer-do\/\">Hadoop Developer <\/a> \u2022<a href=\"\/blog\/what-does-help-desk-support-do\/\">Help Desk Support<\/a> \u2022 <a href=\"\/blog\/what-does-hiring-manager-do\/\">Hiring Manager<\/a> \u2022 <a href=\"\/blog\/what-does-hris-analyst-do\/\">HRIS Analyst<\/a> \u2022 <a href=\"\/blog\/what-does-hr-manager-do\/\">HR Manager<\/a> \u2022 <a href=\"\/blog\/what-does-iib--developer-do\/\">IoT Engineer<\/a> \u2022<a href=\"\/blog\/what-does-an-iot-engineer-do\/\">IoT Engineer<\/a> \u2022 <a href=\"\/blog\/what-does-industrial-designer-do\/\">Industrial Designer<\/a> \u2022 <a href=\"\/blog\/what-does-industrial-engineer-do\/\">Industrial Engineer <\/a> \u2022<a href=\"\/blog\/what-does-informatica-developer-do\/\">Informatica Developer<\/a> \u2022 <a href=\"\/blog\/what-does-information-broker-do\/\">Information Broker<\/a> \u2022 <a href=\"\/blog\/career-insights-info-security-manager\/\">Information Security Manager<\/a> \u2022<a href=\"\/blog\/what-does-infrastructure-manager-do\/\">Infrastructure Manager<\/a> \u2022 <a href=\"\/blog\/what-does-innovation-manager-do\/\">Innovation Manager<\/a> \u2022 <a href=\"\/blog\/what-does-integration-developer-do\/\">Integration Developer<\/a> \u2022<a href=\"\/blog\/what-does-interaction-designer-do\/\">Interaction Designer<\/a> \u2022 <a href=\"\/blog\/what-does-inventory-analyst-do\/\">Inventory Analyst<\/a> \u2022 <a href=\"\/blog\/what-does-interim-manager-do\/\">Interim Manager<\/a> \u2022 <a href=\"\/blog\/the-job-of-an-it-architect-career-insights\/\">IT Architect<\/a> \u2022 <a href=\"\/blog\/what-does-it-auditor-do\/\">IT Auditor<\/a> \u2022 <a href=\"\/blog\/what-does-it-coordinator-do\/\">IT Coordinator<\/a> \u2022 <a href=\"\/blog\/what-does-it-engineer-do\/\">IT Engineer<\/a> \u2022 <a href=\"\/blog\/what-does-it-recruiter-do\/\">IT Recruiter<\/a> \u2022 <a href=\"\/blog\/what-does-it-support-do\/\">IT Support<\/a> \u2022 <a href=\"\/blog\/what-does-javascript-developer-do\/\">JavaScript Developer<\/a> \u2022<a href=\"\/blog\/what-does-kafka-developer-do\/\">Kafka Developer<\/a> \u2022<a href=\"\/blog\/what-does-knowledge-engineer-do\/\">Knowledge Engineer<\/a> \u2022 <a href=\"\/blog\/what-does-key-account-manager-do\/\">Key Account Manager<\/a> \u2022 <a href=\"\/blog\/what-does-kotlin-developer-do\/\">Kotlin Developer<\/a> \u2022<a href=\"\/blog\/what-does-laravel-developer-do\/\">Laravel Developer<\/a> \u2022 <a href=\"\/blog\/what-does-lims-consultant-do\/\">LIMS Consultant<\/a> \u2022 <a href=\"\/blog\/what-does-linux-administrator-do\/\">Linux Administrator<\/a> \u2022 <a href=\"\/blog\/what-does-lms-administrator-do\/\">LMS Administrator<\/a> \u2022 <a href=\"\/blog\/what-does-low-code-developer-do\/\">Low-Code Developerr<\/a> \u2022<a href=\"\/blog\/what-does-machine-learning-engineer-do\/\">Machine Learning Engineer<\/a> \u2022 <a href=\"\/blog\/what-does-mendix-developer-do\/\">Mendix Developer<\/a> \u2022 <a href=\"\/blog\/what-does-mis-analyst-do\/\">MIS Analyst<\/a> \u2022 <a href=\"\/blog\/what-does-magento-developer-do\/\">Magento Developer<\/a> \u2022 <a href=\"\/blog\/what-does-a-mainframe-developer-do\/\">Mainframe Developer<\/a> \u2022<a href=\"\/blog\/what-does-mechatronic-engineer-do\/\">Mechatronic Engineer<\/a> \u2022 <a href=\"\/blog\/what-does-mern-stack-developer-do\/\">Mechatronic Engineer<\/a> \u2022 <a href=\"\/blog\/what-does-middleware-administrator-do\/\">Middleware Administrator<\/a> \u2022<a href=\"\/blog\/what-does-motion-designer-do\/\">Motion Designer<\/a> \u2022<a href=\"\/blog\/what-does-mud-engineer-do\/\">Mud Engineer<\/a> \u2022 <a href=\"\/blog\/what-does-mobile-developer-do\/\">Mobile Developer<\/a> \u2022  <a href=\"\/blog\/what-does-multimedia-designer-do\/\">Mud Engineer<\/a>\u2022 <a href=\"\/blog\/what-does-network-engineer-do\/\">Network Engineer<\/a> \u2022 <a href=\"\/blog\/what-does-netsuite-consultant-do\/\">NetSuite Consultantt<\/a> \u2022 <a href=\"\/blog\/what-does-noc-engineer-do\/\">NOC Engineer<\/a> \u2022 <a href=\"\/blog\/what-does-nlp-engineer-do\/\">NLP Engineer<\/a> \u2022 <a href=\"\/blog\/what-does-obiee-developer-do\/\">OBIEE Developer<\/a> \u2022 <a href=\"\/blog\/what-does-oracle-dba-do\/\">Oracle DBA<\/a> \u2022 <a href=\"\/blog\/what-does-pacs-administrator-do\/\">PACS Administrator<\/a> \u2022 <a href=\"\/blog\/what-does-pcb-designer-do\/\">PCB Designer<\/a> \u2022 <a href=\"\/blog\/what-does-performance-engineer-do\/\">Performance Engineer<\/a> \u2022 <a href=\"\/blog\/what-does-platform-engineer-do\/\">Platform Engineer<\/a> \u2022<a href=\"\/blog\/what-does-plc-programmer-do\/\">PLC Programmer<\/a> \u2022 <a href=\"\/blog\/career-insides-pr-manager\/\">PR Manager<\/a> \u2022 <a href=\"\/blog\/what-does-process-engineer-do\/\">Process Engineer<\/a> \u2022 <a href=\"\/blog\/what-does-product-design-engineer-do\/\">Product Design Engineer<\/a> \u2022 <a href=\"\/blog\/what-does-program-manager-do\/\">Program Manager<\/a> \u2022 <a href=\"\/blog\/what-does-project-controller-do\/\">Project Controller<\/a> \u2022 <a href=\"\/blog\/what-does-project-engineer-do\/\">Project Engineer<\/a> \u2022  <a href=\"\/blog\/what-does-project-manager-do\/\">Project Manager<\/a> \u2022<a href=\"\/blog\/what-does-python-programmer-do\/\">Python Programmer<\/a> \u2022 <a href=\"\/blog\/career-insights-qa-analyst\/\">QA Analyst<\/a> \u2022 <a href=\"\/blog\/what-does-react-js-developer-do\/\">React JS Developer<\/a> \u2022 <a href=\"\/blog\/what-does-release-manager-do\/\">Release manager<\/a> \u2022 <a href=\"\/blog\/what-does-requirements-manager-do\/\">Requirements Manager<\/a> \u2022 <a href=\"\/blog\/what-does-research-engineer-do\/\">Research Engineer<\/a> \u2022 <a href=\"\/blog\/what-does-risk-manager-do\/\">Risk Manager<\/a> \u2022 <a href=\"\/blog\/what-does-robotics-engineer-do\/\">Robotics Engineer<\/a> \u2022 <a href=\"\/blog\/what-does-rpa-developer-do\/\">RPA Developer<\/a> \u2022  <a href=\"\/blog\/what-does-ruby-on-rails-developer-do\/\">Ruby on Rails Developer<\/a> \u2022<a href=\"\/blog\/what-does-rust-developer\/\">Rust Developer<\/a> \u2022  <a href=\"\/blog\/what-does-salesforce-developer-do\/\">Salesforce Developer<\/a> \u2022 <a href=\"\/blog\/what-does-sap-basis-administrator-do\/\">SAP Basis Administrator<\/a> \u2022 <a href=\"\/blog\/what-does-sap-business-analyst-do\/\">SAP Business Analyst<\/a> \u2022 <a href=\"\/blog\/what-does-sas-consultant-do\/\">SAS Consultant<\/a> \u2022 <a href=\"\/blog\/what-does-scala-developer-do\/\">Scala Developer <\/a> \u2022 <a href=\"\/blog\/what-does-scrum-master-do\/\">Scrum Master<\/a> \u2022 <a href=\"\/blog\/what-does-an-sdr-do\/\">SDR<\/a> \u2022<a href=\"\/blog\/what-does-service-delivery-manager-do\/\">Service Delivery Manager<\/a> \u2022 <a href=\"\/blog\/what-does-servicenow-developer-do\/\">ServiceNow Developer<\/a> \u2022<a href=\"\/blog\/what-does-sharepoint-consultant-do\/\">Sharepoint Developer<\/a> \u2022 <a href=\"\/blog\/what-does-shopify-web-designer-do\/\">Shopify Web Designer<\/a> \u2022 <a href=\"\/blog\/what-does-soc-analyst-do\/\">SOC Analyst<\/a> \u2022 <a href=\"\/blog\/what-does-solidity-engineer-do\/\">Solidity Engineer<\/a> \u2022 <a href=\"\/blog\/what-does-solution-architect-do\/\">Solution Architect<\/a> \u2022<a href=\"\/blog\/what-does-solidworks-designer-do\/\">SolidWorks Designer<\/a> \u2022 <a href=\"\/blog\/what-does-sql-server-developer-do\/\">SQL Developer<\/a> \u2022 <a href=\"\/blog\/what-does-sre-engineer-do\/\">SRE Engineer<\/a> \u2022<a href=\"\/blog\/what-does-stationary-engineer-do\/\">Stationary Engineer<\/a> \u2022<a href=\"\/blog\/what-does-supply-chain-director\/\">Supply Chain Director<\/a> \u2022 <a href=\"\/blog\/career-insights-system-administrator\/\">System Administrator<\/a> \u2022 <a href=\"\/blog\/what-does-systems-engineer-do\/\">Systems Engineer<\/a> \u2022 <a href=\"\/blog\/what-does-tableau-developer-do\/\">Tableau Developer<\/a> \u2022 <a href=\"\/blog\/what-does-test-engineer-do\/\">Test Engineer<\/a> \u2022 <a href=\"\/blog\/what-does-tax-advisor-do\/\">Tax Advisor<\/a> \u2022 <a href=\"\/blog\/what-does-tibco-developer-do\/\">TIBCO Developer<\/a> \u2022 <a href=\"\/blog\/what-does-technical-product-manager-do\/\">Technical Product Manager<\/a> \u2022 <a href=\"\/blog\/what-does-technical-sales-manager-do\/\">Technical Sales Manager<\/a> \u2022 <a href=\"\/blog\/what-does-reliability-engineer-do\/\">Reliability Engineer<\/a> \u2022 <a href=\"\/blog\/what-does-technical-tester-do\/\">Technical Tester<\/a> \u2022 <a href=\"\/blog\/what-does-a-technical-writer-do\/\">Technical Writer<\/a> \u2022 <a href=\"\/blog\/what-does-a-test-manager-do\/\">Test Manager<\/a> \u2022 <a href=\"\/blog\/what-does-telecom-consultant-do\/\">Telecom Consultant<\/a> \u2022 <a href=\"\/blog\/what-does-uat-tester-do\/\">UAT Tester <\/a> \u2022 <a href=\"\/blog\/what-does-ux-engineer-do\/\">UX Engineer<\/a> \u2022 <a href=\"\/blog\/what-does-unity-developer-do\/\">Unity Developer<\/a> \u2022 <a href=\"\/blog\/what-does-user-researcher-do\/\">User Researcher<\/a> \u2022 <a href=\"\/blog\/what-does-web-designer-do\/\">Web Designer<\/a> \u2022 <a href=\"\/blog\/what-does-vba-developer-do\/\">VBA Developer<\/a> \u2022 <a href=\"\/blog\/what-does-vfx-artist-do\/\">VFX Artist<\/a> \u2022 <a href=\"\/blog\/career-insights-vr\/\">VR Developer<\/a> \u2022 <a href=\"\/blog\/what-does-xamarin-developer-do\/\">Xamarin<\/a> <\/div><div class=\"su-expand-link su-expand-link-more\" style=\"text-align:left\"><a href=\"javascript:;\" style=\"color:#2b9ab2;border-color:#2b9ab2\"><i class=\"sui sui-arrow-circle-o-down\" style=\"\" aria-label=\"\"><\/i><span style=\"border-color:#2b9ab2\">Show more<\/span><\/a><\/div><div class=\"su-expand-link su-expand-link-less\" style=\"text-align:left\"><a href=\"javascript:;\" style=\"color:#2b9ab2;border-color:#2b9ab2\"><i class=\"sui sui-arrow-circle-o-up\" style=\"\" aria-label=\"\"><\/i><span style=\"border-color:#2b9ab2\">Show less<\/span><\/a><\/div><\/div>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Javascript developers develop and design software and applications using the programming language JavaScript. They are responsible for maintaining and testing these applications as well as performinging code analysis and improving overall functionality and usability. What Does A JavaScript Developer Do?<\/p>\n","protected":false},"author":1,"featured_media":36108,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","footnotes":""},"categories":[2993],"tags":[3419,3413],"class_list":["post-36149","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-careers","tag-career-insights","tag-job-profiles"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What Does A JavaScript Developer Do? | Job Profile &amp; Insights<\/title>\n<meta name=\"description\" content=\"\u2713 Responsibilities \u2713 Background \u2713 Skills \u2713 Salary \u2713 Freelance rates \u2794 Explore the role of a JavaScript Developer now!\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.freelancermap.com\/blog\/what-does-javascript-developer-do\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What Does A JavaScript Developer Do? | Job Profile &amp; Insights\" \/>\n<meta property=\"og:description\" content=\"\u2713 Responsibilities \u2713 Background \u2713 Skills \u2713 Salary \u2713 Freelance rates \u2794 Explore the role of a JavaScript Developer now!\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.freelancermap.com\/blog\/what-does-javascript-developer-do\/\" \/>\n<meta property=\"og:site_name\" content=\"Freelancer Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/freelancermapInternational\/\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/freelancermapInternational\/\" \/>\n<meta property=\"article:published_time\" content=\"2022-12-09T07:00:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-12-09T12:56:30+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2022\/10\/Featured-Images-77.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"628\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Natalia Campana\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@freelancer_INT\" \/>\n<meta name=\"twitter:site\" content=\"@freelancer_INT\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Natalia Campana\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.freelancermap.com\/blog\/what-does-javascript-developer-do\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.freelancermap.com\/blog\/what-does-javascript-developer-do\/\"},\"author\":{\"name\":\"Natalia Campana\",\"@id\":\"https:\/\/www.freelancermap.com\/blog\/#\/schema\/person\/1c0c07efea89560f1cf644d58f321eb7\"},\"headline\":\"What Does A JavaScript Developer Do?\",\"datePublished\":\"2022-12-09T07:00:00+00:00\",\"dateModified\":\"2022-12-09T12:56:30+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.freelancermap.com\/blog\/what-does-javascript-developer-do\/\"},\"wordCount\":1014,\"publisher\":{\"@id\":\"https:\/\/www.freelancermap.com\/blog\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.freelancermap.com\/blog\/what-does-javascript-developer-do\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2022\/10\/Featured-Images-77.png\",\"keywords\":[\"Career insights\",\"Job Profiles\"],\"articleSection\":[\"Careers\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.freelancermap.com\/blog\/what-does-javascript-developer-do\/\",\"url\":\"https:\/\/www.freelancermap.com\/blog\/what-does-javascript-developer-do\/\",\"name\":\"What Does A JavaScript Developer Do? 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