{"id":24187,"date":"2022-09-23T00:00:00","date_gmt":"2022-09-22T22:00:00","guid":{"rendered":"https:\/\/www.freelancermap.com\/blog\/?p=24187"},"modified":"2024-03-07T11:23:24","modified_gmt":"2024-03-07T10:23:24","slug":"what-does-big-data-engineer-do","status":"publish","type":"post","link":"https:\/\/www.freelancermap.com\/blog\/what-does-big-data-engineer-do\/","title":{"rendered":"What does a Big Data Engineer do?"},"content":{"rendered":"\n<p><strong>Big Data Engineer(s) work with a large array of complex datasets. As our world increasingly depends on these databases, their role is crucial in managing and handling data systems and tools. Let\u2019s take a closer look at the role and job profile:<\/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\">Job Profile<\/h2>\n\n\n\n<p>What does a Big Data Engineer do? Is the role different from a Data Engineer? The difference between the two roles can be unclear. The ambiguity over the role further increases when you take into account that the necessary skill sets are virtually the same.  <\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"960\" height=\"720\" data-src=\"https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2020\/07\/big-data-engineer-responsibilities-skill-background-salary.jpg\" alt=\"Big Data Engineer - Role Overview and Job Profile\" class=\"wp-image-24189 lazyload\" data-srcset=\"https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2020\/07\/big-data-engineer-responsibilities-skill-background-salary.jpg 960w, https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2020\/07\/big-data-engineer-responsibilities-skill-background-salary-300x225.jpg 300w, https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2020\/07\/big-data-engineer-responsibilities-skill-background-salary-768x576.jpg 768w, https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2020\/07\/big-data-engineer-responsibilities-skill-background-salary-720x540.jpg 720w, https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2020\/07\/big-data-engineer-responsibilities-skill-background-salary-580x435.jpg 580w, https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2020\/07\/big-data-engineer-responsibilities-skill-background-salary-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;\" \/><figcaption class=\"wp-element-caption\">Big Data Engineer &#8211; Role Overview and Job Profile<\/figcaption><\/figure>\n\n\n\n<p>In essence, the two titles are interchangeable and often reflect the same set of duties. A data engineer can be referred to as a big data engineer or big data architect. <\/p>\n\n\n\n<h3 class=\"wp-block-heading\">What is Data Engineering?<\/h3>\n\n\n\n<p><strong>Data Engineering is the management and processing of data. <\/strong>This includes: <\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Development and construction of architecture systems<\/strong><\/li>\n\n\n\n<li><strong>Testing and maintenance of these systems<\/strong><\/li>\n\n\n\n<li><strong>Dealing with involving large-scale processing of data<\/strong>.<\/li>\n<\/ul>\n\n\n\n<p>Essentially, Data Engineers work to maintain these systems of data processing.  <\/p>\n\n\n\n<p>With the world currently undergoing a digital revolution, data is now the fuel that drives forward the modern 21st century. <strong>Our lives revolve around huge data sets <\/strong>across varying fields and industries. These range from everyday sectors such as banking and education to e-commerce, and even healthcare. This has led to an abrupt rise in the way we <strong>use and manage databases.<\/strong>  <\/p>\n\n\n\n<p>The data mentioned here refers to a set of qualitative or quantitative variables &#8211; be it structured or not, digital or analogue, confidential or not. When you break it down, datasets are made up of individual data points that offer value.&nbsp;<\/p>\n\n\n\n<p>The <strong>term Big Data<\/strong> does not mean more data. It <strong>refers to data points that accumulate at a much bigger rate<\/strong> than \u201cnormal\u201d software can manage. The demarcation of big data is not strictly defined &#8211; but large amounts of data include: <\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A million sales transactions by an online retailer <\/li>\n\n\n\n<li>A million hosted phone calls by a telecommunications provider<\/li>\n\n\n\n<li>A sensor that produces 50 megabytes of data every two nanoseconds.<\/li>\n<\/ul>\n\n\n\n<p>And so if you <strong>work with and\/or manage Big Data<\/strong>, you may be<strong> referred to as a Big Data Engineer<\/strong>. Due to the increased complexity of big data, the engineer has to learn multiple Big Data frameworks &amp; NoSQL databases.<\/p>\n\n\n\n<p class=\"has-text-align-center has-text-color has-background\" style=\"color:#ffffff;background-color:#41c0eb\"><strong>Seeking a<\/strong> <strong>Big Data Expert? Find them on freelancermap!<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=%22big+data%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)\">Browse the latest profiles<\/a><\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"Responsibilities\">Responsibilities of a Big Data Engineer<\/h2>\n\n\n\n<p>As a Big Data Engineer, you are <strong>responsible for the management of data<\/strong>. This includes <strong>utilizing the available data and technologies<\/strong> to create a data landscape for data scientists.&nbsp;<\/p>\n\n\n\n<p>Your knowledge is not only limited to the data available in the company and its storage locations, but you are also <strong>responsible for data integration<\/strong> into central analysis infrastructure, and <strong>determining which technologies are suitable<\/strong> for this.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"960\" height=\"720\" data-src=\"https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2020\/07\/big-data-engineer-responsibilities.jpg\" alt=\"Big Data Engineer - Responsibilities and Tasks\" class=\"wp-image-24190 lazyload\" data-srcset=\"https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2020\/07\/big-data-engineer-responsibilities.jpg 960w, https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2020\/07\/big-data-engineer-responsibilities-300x225.jpg 300w, https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2020\/07\/big-data-engineer-responsibilities-768x576.jpg 768w, https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2020\/07\/big-data-engineer-responsibilities-720x540.jpg 720w, https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2020\/07\/big-data-engineer-responsibilities-580x435.jpg 580w, https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2020\/07\/big-data-engineer-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;\" \/><figcaption class=\"wp-element-caption\">Responsibilities and Tasks<\/figcaption><\/figure>\n\n\n\n<p>The work of a Data Engineer begins with <strong>understanding the technical requirements<\/strong>. They then move to <strong>plan<\/strong> and developing a robust and flexible big data infrastructure. They are responsible for <strong>collecting, storing, processing, and analyzing the data systems<\/strong>. A Big Data Engineer is considered the <strong>master of data supply<\/strong>. They make essential data easily accessible across the company and usable in multiple departments.<\/p>\n\n\n\n<p><strong>Big Data Responsibilities:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Gather and process raw data at scale.<\/li>\n\n\n\n<li>Design and develop data applications using selected tools and frameworks.<\/li>\n\n\n\n<li>Read, extract, transform, stage, and load data to selected tools and frameworks as required and requested.<\/li>\n\n\n\n<li>Perform tasks such as writing scripts, web scraping, calling APIs, write SQL queries, etc.<\/li>\n\n\n\n<li>Work closely with the engineering team to integrate your work into our production systems.<\/li>\n\n\n\n<li>Process unstructured data into a form suitable for analysis.<\/li>\n\n\n\n<li>Analyze processed data.<\/li>\n\n\n\n<li>Support business decisions with ad hoc analysis as needed.<\/li>\n\n\n\n<li>Monitoring data performance and modifying infrastructure as needed.<\/li>\n\n\n\n<li>Define data retention policies.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-align-center has-text-color has-background\" style=\"color:#ffffff;background-color:#41c0eb\"><strong>Looking for your next Data Engineering gig?<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=%22big+data%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)\">Browse new job listings<\/a><\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"Skills\">Big Data Engineer &#8211; Skills Required&nbsp;Required<\/h2>\n\n\n\n<p>As a Big Data Engineer, you\u2019ll require certain skills. On the technical side of things, proficiency with <strong>Big Data Frameworks\/Hadoop-based technologies<\/strong> is required. The Hadoop Ecosystem houses a number of different tools for different purposes.&nbsp;<\/p>\n\n\n\n<p><strong>Some essential tools which you need to master are:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>HDFS (Hadoop Distributed File System)<\/li>\n\n\n\n<li>YARN<\/li>\n\n\n\n<li>MapReduce<\/li>\n\n\n\n<li>PIG &amp; HIVE<\/li>\n\n\n\n<li>Flume &amp; Sqoop<\/li>\n\n\n\n<li>ZooKeeper<\/li>\n\n\n\n<li>Oozie<\/li>\n<\/ul>\n\n\n\n<p>Additionally, <strong>Database Architecture and design<\/strong>. <strong>Data Models &amp; Data Schema<\/strong> are also amongst the key skills that a Data Engineer should possess.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"960\" height=\"720\" data-src=\"https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2020\/07\/big-data-engineer-skills.jpg\" alt=\"Big Data Engineer - Skills Required\" class=\"wp-image-24191 lazyload\" data-srcset=\"https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2020\/07\/big-data-engineer-skills.jpg 960w, https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2020\/07\/big-data-engineer-skills-300x225.jpg 300w, https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2020\/07\/big-data-engineer-skills-768x576.jpg 768w, https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2020\/07\/big-data-engineer-skills-720x540.jpg 720w, https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2020\/07\/big-data-engineer-skills-580x435.jpg 580w, https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2020\/07\/big-data-engineer-skills-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;\" \/><figcaption class=\"wp-element-caption\">Big Data Engineer &#8211; Skills Required<\/figcaption><\/figure>\n\n\n\n<p>Data Experts work closely with relational databases. It is important to know your way around <strong>SQL-based technologies such as MySQL and PL\/SQL<\/strong>. Knowledge of databases such as <strong>Cassandra, MongoDB<\/strong>, and programming languages such as <strong>Python\/R<\/strong>, is also essential. Furthermore, good <strong>teamwork and communication skills<\/strong> can help when working with team members.&nbsp;<\/p>\n\n\n\n<p><strong>What skills are required?<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Knowledge of data processes<\/li>\n\n\n\n<li>Skilled at Big data frameworks and Hadoop tools<\/li>\n\n\n\n<li>Knowledge of Database Architecture and Design<\/li>\n\n\n\n<li>Data Models and Data Schema<\/li>\n\n\n\n<li>Cross-divisional know-how<\/li>\n\n\n\n<li>Programming skills and SQL based technologies<\/li>\n\n\n\n<li>Talent in communication and teamwork<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"Background\">Background<\/h2>\n\n\n\n<p>In general, when <strong>hiring a Data <\/strong>Expert, employees look for a<strong> <\/strong>Bachelor&#8217;s Degree in <strong>Computer Science, Software Engineering, IT,<\/strong> or a closely related field. Additionally, a <strong>certificate in Big<\/strong> <strong>Data <\/strong>can boost your visibility chances with a potential employer.&nbsp;<\/p>\n\n\n\n<p><strong>Big Data Certifications to consider:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a rel=\"noreferrer noopener\" aria-label=\" (opens in a new tab)\" href=\"https:\/\/cloud.google.com\/certification\/data-engineer\" target=\"_blank\">Google Professional Data Certificate<\/a><\/li>\n\n\n\n<li><a rel=\"noreferrer noopener\" aria-label=\" (opens in a new tab)\" href=\"https:\/\/aws.amazon.com\/certification\/certified-big-data-specialty\/\" target=\"_blank\">Amazon Web Services (AWS) Certified Big Data \u2013 Specialty<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.cloudera.com\/services-and-support\/training\/cdhhdp-certification\/ccp-data-engineer.html\">Cloudera Certified Professional (CCP) Data Engineer<\/a><\/li>\n\n\n\n<li><a rel=\"noreferrer noopener\" aria-label=\" (opens in a new tab)\" href=\"https:\/\/www.dasca.org\/data-science-certifications\/associate-big-data-engineer\" target=\"_blank\">Data Science Council of America (DASCA) Associate Big Data<\/a><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"Salary\">Salary<\/h2>\n\n\n\n<p>The average salary for a Big Data Engineer is around <strong>$103,000<\/strong>. The starting salary for junior engineers is around <strong>$72,000<\/strong> and Senior engineers can expect to earn over <strong>$158,000<\/strong> per year.&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-background\" style=\"background-color:#f3f4f5\"><tbody><tr><td>Junior Salary<\/td><td>$72,000<\/td><\/tr><tr><td>Average Salary<\/td><td>$103,000<\/td><\/tr><tr><td>Senior Salary<\/td><td>$158,000<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong>How much does a freelance big data engineer earn?<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td> Average rate Big Data Engineers (2022) <\/td><td class=\"has-text-align-center\" data-align=\"center\">$90\/hr<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>On average, <strong>freelance Big Data Engineers charge $90\/hour <\/strong>(freelancermap\u2019s price and rate index in September 2022). <\/p>\n\n\n\n<p>Freelance rates in Big Data Engineering range between <strong>$59 and $106 <\/strong>for the majority of freelancers. <\/p>\n\n\n\n<p>Considering a freelance rate of $90\/hour, a <strong>freelancer would charge $720\/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<h2 class=\"wp-block-heading\">Other interesting 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-40313\" class=\"su-post \">\n\t\t\t\t<a href=\"https:\/\/www.freelancermap.com\/blog\/what-does-computer-vision-engineer-do\/\">What Does A Computer Vision Engineer 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-47527\" class=\"su-post \">\n\t\t\t\t<a href=\"https:\/\/www.freelancermap.com\/blog\/what-does-search-engineer-do\/\">What Does a Search Engineer 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-40308\" class=\"su-post \">\n\t\t\t\t<a href=\"https:\/\/www.freelancermap.com\/blog\/what-does-deep-learning-engineer-do\/\">What Does A Deep Learning Engineer 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-29722\" class=\"su-post \">\n\t\t\t\t<a href=\"https:\/\/www.freelancermap.com\/blog\/what-does-computational-linguist-do\/\">What Does A Computational Linguist 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-27587\" class=\"su-post \">\n\t\t\t\t<a href=\"https:\/\/www.freelancermap.com\/blog\/what-does-data-architect-do\/\">What does a Data Architect 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-data-science-analysis\">More job profiles in Data Science &amp; Analysis<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Big Data Engineer(s) work with a large array of complex datasets. As our world increasingly depends on these databases, their role is crucial in managing and handling data systems and tools. Let\u2019s take a closer look at the role and job profile: Job Profile What does a Big Data Engineer do? Is the role different [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":24193,"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":[2993,3980],"tags":[3419,3413],"class_list":["post-24187","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-careers","category-data-science-analysis","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 Big Data Engineer 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 Big Data Engineer 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-big-data-engineer-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 Big Data Engineer do? 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