{"id":27622,"date":"2022-09-28T08:00:00","date_gmt":"2022-09-28T06:00:00","guid":{"rendered":"https:\/\/www.freelancermap.com\/blog\/?p=27622"},"modified":"2026-03-11T11:18:34","modified_gmt":"2026-03-11T10:18:34","slug":"what-does-kotlin-developer-do","status":"publish","type":"post","link":"https:\/\/www.freelancermap.com\/blog\/what-does-kotlin-developer-do\/","title":{"rendered":"What does a Kotlin Developer do?"},"content":{"rendered":"\n<p><strong>A Kotlin developer is a software developer who specializes in Kotlin &#8211; a modern, statically-typed programming language. He\/She has experience with functional programming, web service concepts and is familiar with Android libraries.<\/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:#000a1c;border-radius:3px;\"><div class=\"su-box-title\" style=\"background-color:#2c3d4f;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=\"#Responsibilities\">Responsibilities<\/a><\/span><br \/><span style=\"color: #000000;\"><a style=\"color: #000000;\" href=\"#Skills\">Skills<\/a><\/span><br \/><span style=\"color: #000000;\"><a style=\"color: #000000;\" href=\"#Background\">Background<\/a><\/span><br \/><span style=\"color: #000000;\"><a style=\"color: #000000;\" href=\"#Salary\">Salary<\/a><\/span><\/div><\/div><\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">What is Kotlin?<\/h2>\n\n\n\n<p>Kotlin is a high-level programming language that <strong>combines features of object-oriented and functional programming paradigms<\/strong>. It was developed by JetBrains, a multinational software company.&nbsp;<\/p>\n\n\n\n<p>Like Java, the Kotlin source code is first converted to bytecode and executed on a Java Virtual Machine (JVM), independent of an external environment or an external operating system. JVM is the virtual machine that enables the operating system to run programs written in Java or another compatible programming language whose code is compiled in Java bytecode.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" data-src=\"https:\/\/lh4.googleusercontent.com\/8VZGVF40AjxSB72jpKFK_hVw1JTr4IkF118MyzAXkrb5s_9ZKnw8T3TGWRvrjFNQTv7OlpIrUq64xWembUaAoibw7GzLIqwBgjE2kUX4Uk2Xc90fDxIvVtBX0isWnLLIaa2LM7XO\" alt=\"role overview of a kotlin developer- responsibilities, skills, background, salary\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" \/><figcaption class=\"wp-element-caption\">Role Overview &#8211; Kotlin Developer<\/figcaption><\/figure>\n\n\n\n<p>Kotlin includes various functional programming functions such as lambda expressions, higher order functions, inline functions, anonymous functions, generics and recursion. It also has the ability to support data classes and type aliases.<\/p>\n\n\n\n<p>At the 2017 Developer Conference, Google recognized it as the <strong>official programming language for the Android platform<\/strong>. This makes Kotlin the third official language of the Android platform alongside Java and C++.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"Responsibilities\">What is the role of a Kotlin developer?<\/h2>\n\n\n\n<p>Kotlin developers are in charge of <strong>planning, designing and developing apps and software<\/strong> using Kotlin. They contribute in all phases of the development cycle and then <strong>test <\/strong>and amend features, when needed.&nbsp;<\/p>\n\n\n\n<p>Kotlin developers ensure that the designs comply with the specifications provided. They <strong>write well-designed and efficient code<\/strong> and also <strong>analyze<\/strong>, test and <strong>assist <\/strong>with the integration of applications.&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" data-src=\"https:\/\/lh6.googleusercontent.com\/uAGWGA0oHhzfzoM5ZKRJgXWuDQWH6-HkWtxktwv1GM9z-pWomdhSzEgZGJKxNWlYAEz4Nk7zfmu9u2bseNEabtU5_OIFt7XYnXCCpUdY1hl7hB5f6EoC9IwrHc0iociiYClzB18o\" alt=\"Responsibilities of a Kotlin Developer\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" \/><figcaption class=\"wp-element-caption\">Responsibilities of a Kotlin Developer<\/figcaption><\/figure>\n\n\n\n<p>Developers conduct <strong>software analysis<\/strong> and <strong>troubleshoot <\/strong>apps and software that use Kotlin. They are required to manage application development and support the continuous improvement of it by investigating and suggesting technologies.<\/p>\n\n\n\n<p>They are also responsible for <strong>optimizing <\/strong>apps and systems and identifying opportunities for improvement. This includes code optimization, adding new features when needed as well as providing software updates.<\/p>\n\n\n\n<p><strong>What are the responsibilities of a Kotlin developer?<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Planning, designing and developing apps and software using Kotlin<\/li>\n\n\n\n<li>Contributing in all phases of the development cycle\u00a0<\/li>\n\n\n\n<li>Testing and amending features when needed<\/li>\n\n\n\n<li>Ensuring that designs comply with specifications provided<\/li>\n\n\n\n<li>Writing well-designed and efficient code<\/li>\n\n\n\n<li>Analyzing, testing and assisting with the integration of applications<\/li>\n\n\n\n<li>Conducting software analysis<\/li>\n\n\n\n<li>Troubleshooting applications and software<\/li>\n\n\n\n<li>Managing application development<\/li>\n\n\n\n<li>Supporting continuous improvement of applications<\/li>\n\n\n\n<li>Investigating and suggesting technologies<\/li>\n\n\n\n<li>Optimizing apps and systems<\/li>\n\n\n\n<li>Identifying opportunities for improvement<\/li>\n\n\n\n<li>Optimizing code<\/li>\n\n\n\n<li>Adding new features\u00a0<\/li>\n\n\n\n<li>Providing software updates<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-align-center has-text-color has-background\" style=\"color:#ffffff;background-color:#41c0eb;font-size:18px\">Looking for a Kotlin Developer?<br> <a href=\"https:\/\/www.freelancermap.com\/freelancers-directory.html?filter=&amp;newQuery=&amp;continents=&amp;countries=&amp;states=&amp;city=&amp;radius=&amp;query=%22kotlin+developer%22&amp;excludeDachRegion=0&amp;sort=1?utm_source=blog&amp;utm_campaign=freelancers&amp;utm_medium=button&amp;utm_content=career-en\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\" (opens in a new tab)\">Find the right freelancer here<\/a> <\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"Skills\">Skills of a Kotlin Developer<\/h2>\n\n\n\n<p>A Kotlin developer is required to have expert <strong>knowledge in Kotlin and Java<\/strong> as well as hands-on experience with software development and app design. They must also have <strong>knowledge of databases<\/strong> and must <strong>be familiar with at least one web framework<\/strong> like GWT.<\/p>\n\n\n\n<p>They must be proficient in <strong>object-oriented fundamentals<\/strong> and <strong>backend programming <\/strong>and must have decent experience with <strong>SQL<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" data-src=\"https:\/\/lh6.googleusercontent.com\/4NMiePDeDFnaLt2NMaxmqGXJYK7udc2_u0hVX1e6jYUa5Ltlrrjx0Aj-AQkBWFjVkkwdVwxRKIc3aVSqxP0vwaIeApF7WIPn6c1cOQrp8kMkGwyIe_GManzsemP3rjsZAY5oSd1K\" alt=\"Skills of a Kotlin Developer\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" \/><figcaption class=\"wp-element-caption\">Skills of a Kotlin Developer<\/figcaption><\/figure>\n\n\n\n<p>Kotlin developers must have knowledge of <strong>web development solutions<\/strong> and should be familiar with <strong>XML basics<\/strong>. They are also required to be informed on new language developments and have business knowledge of the industry they want to work in.<\/p>\n\n\n\n<p>Apart from the technical skills mentioned, Kotlin developers must possess strong <strong>communication skills <\/strong>and have the <strong>ability to work well<\/strong> in a team.&nbsp;<\/p>\n\n\n\n<p><strong>What are the skills of a Kotlin developer?<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Expert knowledge in Kotlin and Java<\/li>\n\n\n\n<li>Hands-on experience with software development and app design<\/li>\n\n\n\n<li>Knowledge of databases<\/li>\n\n\n\n<li>Familiarity with web frameworks like GWT<\/li>\n\n\n\n<li>Proficiency in object-oriented fundamentals\u00a0<\/li>\n\n\n\n<li>Strong backend programming skills<\/li>\n\n\n\n<li>Experience with SQL<\/li>\n\n\n\n<li>Knowledge of web development solutions<\/li>\n\n\n\n<li>Familiarity with XML basics<\/li>\n\n\n\n<li>Being informed on new language developments<\/li>\n\n\n\n<li>Having business knowledge of the industry they want to work in<\/li>\n\n\n\n<li>Strong communication skills<\/li>\n\n\n\n<li>Ability to work well in a team<\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"has-text-align-center has-text-color\" style=\"color:#41c0eb;font-size:18px\"><strong>Join our IT freelance community now<\/strong><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><div class=\"su-button-center\"><a href=\"https:\/\/www.freelancermap.com\/registration?ref=blog-com\" class=\"su-button su-button-style-default su-button-wide\" style=\"color:#FFFFFF;background-color:#21cda4;border-color:#1ba484;border-radius:10px\" target=\"_self\"><span style=\"color:#FFFFFF;padding:7px 20px;font-size:16px;line-height:24px;border-color:#64dcc0;border-radius:10px;text-shadow:none\"><i class=\"sui sui-user\" style=\"font-size:16px;color:#FFFFFF\"><\/i> Sign up for free!<\/span><\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"Background\">Background<\/h2>\n\n\n\n<p>Kotlin developers must ideally have a Bachelor\u2019s degree in <strong>Computer Science, Engineering or a related subject.<\/strong> They must also have proven <strong>software development experience<\/strong>. It should also be noted that while a Master\u2019s degree is not strictly needed, employers do prefer candidates with one.&nbsp;<\/p>\n\n\n\n<p><strong>Training <\/strong>and <strong>certification <\/strong>can also go a long way. Check out some options for certification below:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a aria-label=\"Kotlin Bootcamp For Programmers (opens in a new tab)\" href=\"https:\/\/www.udacity.com\/course\/kotlin-bootcamp-for-programmers--ud9011\" target=\"_blank\" rel=\"noreferrer noopener\">Kotlin Bootcamp For Programmers<\/a><\/li>\n\n\n\n<li><a aria-label=\"Complete Kotlin Android Developer Course (opens in a new tab)\" href=\"https:\/\/www.udemy.com\/course\/complete-kotlin-android-developer-course-tutorial\/\" target=\"_blank\" rel=\"noreferrer noopener\">The Complete Kotlin Android Developer Course<\/a> <\/li>\n\n\n\n<li><a aria-label=\"Kotlin For Java Developers (opens in a new tab)\" href=\"https:\/\/www.coursera.org\/learn\/kotlin-for-java-developers\" target=\"_blank\" rel=\"noreferrer noopener\">Kotlin For Java Developers<\/a><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"Salary\">Salary<\/h2>\n\n\n\n<p>The salary of a Kotlin developer may vary depending on a number of factors such as the job they have and the industry they are in.&nbsp;<\/p>\n\n\n\n<p>A junior developer can earn upto <strong>$100,000<\/strong> per year whereas a developer with a bit of experience and additional skills can earn up to <strong>$127,500<\/strong>. A developer in a more senior position can earn up to <strong>$190,000<\/strong> annually.<\/p>\n\n\n\n<p><strong>How much does a Kotlin developer make?<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">Junior<\/td><td class=\"has-text-align-center\" data-align=\"center\"> $100,000 <\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Average<\/td><td class=\"has-text-align-center\" data-align=\"center\"> $127,500 <\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Senior<\/td><td class=\"has-text-align-center\" data-align=\"center\"> $190,000 <\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>What does a freelance Kotlin developer earn?<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td> Average rate Kotlin Developers (2022) <\/td><td class=\"has-text-align-center\" data-align=\"center\">$71hr<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>According to freelancermap&#8217;s price and rate index in September 2022, <strong>freelance Kotlin Developers charge $71\/hour<\/strong> on average. <\/p>\n\n\n\n<p>Freelance rates in Kotlin Development range between <strong>$40 and $101<\/strong> for the majority of freelancers. <\/p>\n\n\n\n<p>If we consider an 8-hour working day at $71\/hour, the daily rate for freelance Kotlin Developers is around <strong>$568\/day<\/strong>.  <\/p>\n\n\n\n<p class=\"has-text-align-center has-text-color has-background\" style=\"color:#ffffff;background-color:#41c0eb;font-size:18px\">Looking for Kotlin developer vacancies?&nbsp;<br> <a href=\"https:\/\/www.freelancermap.com\/it-projects.html?filter=&amp;newQuery=&amp;continents=&amp;countries=&amp;states=&amp;city=&amp;radius=&amp;query=%22kotlin+developer%22&amp;excludeDachProjects=0&amp;sort=1?utm_source=blog&amp;utm_campaign=projects&amp;utm_medium=button&amp;utm_content=career-en\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\" (opens in a new tab)\">Find Kotlin developer jobs here<\/a><\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Other interesting job profiles<\/h2>\n\n\n\n\n<ul class=\"su-posts su-posts-list-loop \">\n\n\t\t\t\t\t\t\n\t\t\t\n\t\t\t<li id=\"su-post-5707\" class=\"su-post \">\n\t\t\t\t<a href=\"https:\/\/www.freelancermap.com\/blog\/what-does-tax-advisor-do\/\">What does a Tax Advisor do?<\/a>\n\t\t\t<\/li>\n\n\t\t\t\t\t\n\t\t\t\n\t\t\t<li id=\"su-post-5604\" class=\"su-post \">\n\t\t\t\t<a href=\"https:\/\/www.freelancermap.com\/blog\/what-does-hiring-manager-do\/\">What does a Hiring Manager do?<\/a>\n\t\t\t<\/li>\n\n\t\t\t\t\t\n\t\t\t\n\t\t\t<li id=\"su-post-25542\" class=\"su-post \">\n\t\t\t\t<a href=\"https:\/\/www.freelancermap.com\/blog\/what-does-pacs-administrator-do\/\">What does a PACS Administrator do?<\/a>\n\t\t\t<\/li>\n\n\t\t\t\n<\/ul>\n\n\n\n\n<p> \u00bb\u00a0<a href=\"https:\/\/www.freelancermap.com\/blog\/freelance-job-profiles-it-roles\/#job-profiles-other\">More job profiles<\/a> <\/p>\n","protected":false},"excerpt":{"rendered":"<p>A Kotlin developer is a software developer who specializes in Kotlin &#8211; a modern, statically-typed programming language. He\/She has experience with functional programming, web service concepts and is familiar with Android libraries.<\/p>\n","protected":false},"author":1,"featured_media":27627,"comment_status":"open","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":[2993,3974],"tags":[3419,3413],"class_list":["post-27622","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-careers","category-software-development","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 Kotlin Developer do? | Career insights &amp; Job Profiles<\/title>\n<meta name=\"description\" content=\"\u2713 Responsibilities \u2713 Background \u2713 Skills \u2713 Salary \u2713Average freelance hourly rate \u2794 Learn more about what a Kotlin Developer does!\" \/>\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-kotlin-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 Kotlin Developer do? 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