{"id":5641,"date":"2022-09-22T00:00:00","date_gmt":"2022-09-21T22:00:00","guid":{"rendered":"https:\/\/www.freelancermap.com\/blog\/what-does-etl-developer-do\/"},"modified":"2026-03-11T11:49:40","modified_gmt":"2026-03-11T10:49:40","slug":"what-does-etl-developer-do","status":"publish","type":"post","link":"https:\/\/www.freelancermap.com\/blog\/what-does-etl-developer-do\/","title":{"rendered":"What does an ETL Developer do?"},"content":{"rendered":"\n<p><strong>ETL developers are in charge of extracting, transforming and loading data in an efficient way and their work helps data teams greatly. So, what does it take to become an ETL developer? Read through to learn more about the skills, background, and duties for ETL developers.<\/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=\"#ETL\">ETL<\/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><\/div><\/div><\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"ETL\"><strong>What is ETL?<\/strong><\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" data-src=\"\/images\/upload\/ETL-developer-skills-background-responsibilities-salary.JPG\" alt=\"ETL Developer Job overview responsibilities, background, skills, salary\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" \/><\/figure><\/div>\n\n\n<p><strong>Extract, Transform, Load<\/strong>, or ETL for short, is the <strong>process of loading a range of business data into a data warehousing environment<\/strong>. This data then undergoes testing for performance and troubleshooting before it goes live.&nbsp;<\/p>\n\n\n\n<p>An <strong>ETL developer<\/strong> is responsible for that process and <strong>designs and develops data storage systems<\/strong> for firms. At the same time, it makes sure that those systems are filled up with relevant business data that needs to be stored.<\/p>\n\n\n\n<p>Often <strong>ETL Developers<\/strong> are also called <strong>Informatica developers<\/strong> and are compared to Data Engineers.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"Responsibilities\"><strong>What does an ETL Developer Do? Responsibilities and Tasks<\/strong><\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"960\" height=\"720\" data-src=\"https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2020\/06\/ETL-developer-responsibilities.jpg\" alt=\"ETL developer role and responsibilities\" class=\"wp-image-23862 lazyload\" data-srcset=\"https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2020\/06\/ETL-developer-responsibilities.jpg 960w, https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2020\/06\/ETL-developer-responsibilities-300x225.jpg 300w, https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2020\/06\/ETL-developer-responsibilities-768x576.jpg 768w, https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2020\/06\/ETL-developer-responsibilities-720x540.jpg 720w, https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2020\/06\/ETL-developer-responsibilities-580x435.jpg 580w, https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2020\/06\/ETL-developer-responsibilities-320x240.jpg 320w\" data-sizes=\"(max-width: 960px) 100vw, 960px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 960px; --smush-placeholder-aspect-ratio: 960\/720;\" \/><\/figure><\/div>\n\n\n<p>While designing data storage solutions for organizations and overseeing the loading of data into the systems, <strong>ETL developers<\/strong> have a wide range of duties and tasks that they are responsible for.<\/p>\n\n\n\n<p>Below is a list of the <strong>primary duties of an ETL Developer<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Determining\u00a0Data Storage Needs:<\/strong> ETL Developers are primarily tasked with figuring\u00a0out the exact storage needs of the company or business they are working for. They will need to have a clear picture of the current data situation and be able to analyze different options to figure out the best fit.<br>\u00a0<\/li>\n\n\n\n<li><strong>Designing and Creating\u00a0a Data Warehouse: <\/strong>Based on the determined needs, the ETL Developer then designs a data warehousing system that meets the specific business needs and works with a development team to build the warehouse.<br>\u00a0<\/li>\n\n\n\n<li><strong>Extracting, Transformation, and Loading of data: <\/strong>Once the warehousing system is developed, the ETL Developer extracts the necessary data and transfers it to the new system.<br>\u00a0<\/li>\n\n\n\n<li><strong>Testing and Troubleshooting:<\/strong> After the system is up and running, the ETL Developer must test their designs to ensure the system runs smoothly. They fix any problems that may pop up.<\/li>\n<\/ul>\n\n\n\n<p><strong>Detailed Informatica developer responsibilities and tasks:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Define business requirements and develop ETL mappings<\/li>\n\n\n\n<li>Perform Unit testing<\/li>\n\n\n\n<li>Develop and enhance existing ETL processes<\/li>\n\n\n\n<li>Create data warehousing systems using Informatica software tools (Powercenter)<\/li>\n\n\n\n<li>Create scripts to load a large amount of data &#8211; MLOAD, FLOAD, BTEQ scripts<\/li>\n\n\n\n<li> Populate and refresh Teradata tables using TPT  <\/li>\n\n\n\n<li> Develop Process flow diagrams<\/li>\n\n\n\n<li>Create and maintain up-to-date documentation of ETL processes related to Informatica systems<\/li>\n<\/ul>\n\n\n\n<p><\/p>\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>Looking for an ETL Developer<\/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\/freelancers-directory.html?filter=&#038;newQuery=&#038;continents=&#038;countries=&#038;states=&#038;city=&#038;radius=&#038;query=etl&#038;excludeDachRegion=0&#038;sort=1?utm_source=blog&#038;utm_campaign=freelancers&#038;utm_medium=button&#038;utm_content=career-en\" class=\"su-button su-button-style-default su-button-wide\" style=\"color:#FFFFFF;background-color:#41c0eb;border-color:#349abc;border-radius:10px\" target=\"_self\"><span style=\"color:#FFFFFF;padding:7px 20px;font-size:16px;line-height:24px;border-color:#7ad3f1;border-radius:10px;text-shadow:none\"><i class=\"sui sui-search\" style=\"font-size:16px;color:#FFFFFF\"><\/i> ETL Developer profiles<\/span><\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<p><\/p>\n\n\n\n<p>So what does it take to become an ETL Developer? Let\u2019s take a look:&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"Skills\"><strong>What skills does an ETL developer need?<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" data-src=\"\/images\/upload\/ETL-developer-skills.JPG\" alt=\"ETL Developer Skills\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" \/><\/figure>\n\n\n\n<p>The <strong>ETL developer<\/strong>s should have the <strong>ability to read, analyze, and transform the data <\/strong>in accordance with what the business wants to do with it. They then need to&nbsp;<strong>design the best possible ETL designs<\/strong> to process it through the goal.<\/p>\n\n\n\n<p>The <strong>ETL job role<\/strong> requires someone with more <strong>in-depth knowledge of the different programming languages.<\/strong> With excellent <strong>communication skills<\/strong> combined with the best <strong>analytical mind.<\/strong> <\/p>\n\n\n\n<p>An <strong>ETL developer<\/strong> is responsible for leading an IT team to build the data warehouse. So communicating, instructing, leading efficiently is a crucial role.<\/p>\n\n\n\n<p>Based on ETL Developer job listings we looked at, employers are looking for candidates with knowledge of <strong>ETL tools<\/strong> and <strong>core skills<\/strong> such as the ones listed below.<\/p>\n\n\n\n<p><strong>Technical skills required by ETL developers<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>ETL Tools such as Informatica or Pentaho<\/li>\n\n\n\n<li><a href=\"https:\/\/www.freelancermap.com\/it-projects\/pl-sql-1481\" target=\"_blank\" rel=\"noreferrer noopener\">PL\/SQL<\/a> Oracle development experience<\/li>\n\n\n\n<li>Hands-on experience with NoSQL databases<\/li>\n\n\n\n<li>Experience pulling data from a variety of data source types<\/li>\n\n\n\n<li>Dimensional modeling experience and parameterization<\/li>\n\n\n\n<li>Experience interfacing with business users and understanding their requirements<\/li>\n\n\n\n<li>Scripting skills &#8211; popular languages such as Python, Ruby, Perl, Bash<\/li>\n\n\n\n<li>Strong Project Management and organization skills<\/li>\n\n\n\n<li>Experience with <a href=\"https:\/\/www.freelancermap.com\/it-projects\/hadoop-1106\" target=\"_blank\" rel=\"noreferrer noopener\">Hadoop<\/a> Components \u2013 HDFS, Spark, HBase, Hive, Sqoop<\/li>\n\n\n\n<li>Experience with OLAP, SSAS, and MDX<\/li>\n\n\n\n<li>Java and\/or .NET experience<\/li>\n<\/ul>\n\n\n\n<p>Apart from technical skills, <strong>which soft skills are also crucial to ETL Developers?<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Organizational Skills<\/li>\n\n\n\n<li>Time Management<\/li>\n\n\n\n<li>Creativity<\/li>\n\n\n\n<li>Problem Solving<br>\u00a0<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"Background\"><strong>Background and Education<\/strong><\/h2>\n\n\n\n<p>The qualifications you need to become an ETL developer include a <strong>degree in a computer-related field <\/strong>and\/or a certification in the ETL programming language<strong>.<\/strong><\/p>\n\n\n\n<p>Some of these<strong> certifications or training sessions to improve ETL knowledge<\/strong> and skills are listed below:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.microsoft.com\/en-us\/learning\/mcsa-sql2016-business-intelligence-certification.aspx\" target=\"_blank\" rel=\"noreferrer noopener\">MCSA: SQL 2016 BI Development <\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/tdwi.org\/cbip\" target=\"_blank\" rel=\"noreferrer noopener\">TDWI CBIP Certification<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.lynda.com\/Data-Science-tutorials\/ETL-Extract-transform-load\/158656\/190798-4.html\" target=\"_blank\" rel=\"noreferrer noopener\">Lynda.com &#8211; ETL Course<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.udemy.com\/the-complete-etl-testing-course\/\" target=\"_blank\" rel=\"noreferrer noopener\">Udemy.com &#8211; ETL Testing<\/a><\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-2 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>Looking for a new job?<\/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\/it-projects.html?filter=&#038;newQuery=&#038;continents=&#038;countries=&#038;states=&#038;city=&#038;radius=&#038;query=etl&#038;excludeDachProjects=0&#038;sort=1?utm_source=blog&#038;utm_campaign=projects&#038;utm_medium=button&#038;utm_content=career-en\" class=\"su-button su-button-style-default su-button-wide\" style=\"color:#FFFFFF;background-color:#41c0eb;border-color:#349abc;border-radius:10px\" target=\"_self\"><span style=\"color:#FFFFFF;padding:7px 20px;font-size:16px;line-height:24px;border-color:#7ad3f1;border-radius:10px;text-shadow:none\"><i class=\"sui sui-search\" style=\"font-size:16px;color:#FFFFFF\"><\/i> Browse freelance ETL developer projects<\/span><\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"Salary\">ETL Developer <strong>Salary<\/strong><\/h2>\n\n\n\n<p>The <strong>median <\/strong>annual wage for Database Administrators is <strong>$81,700<\/strong>, but the lowest 10 percent and <strong>entry-level positions<\/strong> offer less than <strong>$45,400<\/strong>, while the highest 10 percent and <strong>senior roles earn more than $127,000<\/strong>.<\/p>\n\n\n\n<p><strong>How much does an ETL developer make?<\/strong><\/p>\n\n\n<div class=\"su-table su-table-alternate su-table-fixed\">\n<table>\n<tr>\n<td><strong>Junior<\/strong><\/td>\n<td>$ 45,400,<\/td>\n<\/tr>\n<tr>\n<td><strong>Average<\/strong><\/td>\n<td>$ 81,700<\/td>\n<\/tr>\n<tr>\n<td><strong>Senior<\/strong><\/td>\n<td>$ 127,000<\/td>\n<\/tr>\n<\/table>\n<\/div>\n\n\n\n<p><strong>How much do <\/strong> <strong>ETL freelancers<\/strong> <strong>earn?<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td> Average rate ETL Developers (2022) <\/td><td class=\"has-text-align-center\" data-align=\"center\">$86\/hr<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>On average, <strong>freelance ETL Developers charge $86\/hour <\/strong>(freelancermap\u2019s price and rate index in September 2022). <\/p>\n\n\n\n<p>Freelance rates in ETL Development range between <strong>$66 and $101 <\/strong>for the majority of freelancers. <\/p>\n\n\n\n<p>Considering a freelance rate of $86\/hour, a <strong>freelancer would charge $688\/day<\/strong> for an 8-hour working day. <\/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>ETL developers are in charge of extracting, transforming and loading data in an efficient way and their work helps data teams greatly. So, what does it take to become an ETL developer? Read through to learn more about the skills, background, and duties for ETL developers.<\/p>\n","protected":false},"author":1,"featured_media":0,"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":[2993,3974],"tags":[3419,3413],"class_list":["post-5641","post","type-post","status-publish","format-standard","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 an ETL Developer do? | Career Insights<\/title>\n<meta name=\"description\" content=\"\u2713 Responsibilities n \u2713 Skills \u2713 Salary \u2713 Average freelance rate \u2794 Find out more about the role of an ETL Developer!\" \/>\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-etl-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 an ETL Developer do? 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