{"id":37823,"date":"2025-09-11T08:00:00","date_gmt":"2025-09-11T06:00:00","guid":{"rendered":"https:\/\/www.freelancermap.com\/blog\/?p=37823"},"modified":"2025-09-11T12:11:23","modified_gmt":"2025-09-11T10:11:23","slug":"what-does-big-data-specialist-do","status":"publish","type":"post","link":"https:\/\/www.freelancermap.com\/blog\/what-does-big-data-specialist-do\/","title":{"rendered":"What Does A Big Data Specialist Do?\u00a0"},"content":{"rendered":"\n<p>A <strong>Big Data specialist<\/strong> is an <strong>expert in data management<\/strong> and has advanced knowledge of the entire <strong>data lifecycle<\/strong>: from identifying data sources to storage, architecture, modelling, visualisation, or analysis.&nbsp;<\/p>\n\n\n\n<p>In this article, we will better understand the role of the <strong>Big Data specialist<\/strong>, the different specialisations, functions, and salaries:\u00a0<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"#JobProfile\">Who is the Big Data specialist?<\/a><\/li>\n\n\n\n<li><a href=\"#Demand\">Demand for Big Data experts<\/a><\/li>\n\n\n\n<li><a href=\"#Skills\">Skills required in Big Data<\/a><\/li>\n\n\n\n<li><a href=\"#Profiles\">Professional profiles in Big Data<\/a><\/li>\n\n\n\n<li><a href=\"#Education\">Education &amp; background<\/a><\/li>\n\n\n\n<li><a href=\"#Salary\">Big Data specialist salary<\/a><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"JobProfile\">Job Profile of a Big Data Specialist<\/h2>\n\n\n\n<p>The <strong>amount of data we generate is growing exponentially<\/strong>. Companies need to <strong>store, manage, and understand<\/strong> this data in order to make better strategic and business decisions.<\/p>\n\n\n\n<p>This<strong> huge amount of data <\/strong>is known as <strong>&#8220;Big Data&#8221;<\/strong> and the exponential growth of data is creating companies with an urgent need for <strong>experts in Big Data<\/strong>.<\/p>\n\n\n\n<p>These <strong>data specialists<\/strong> are in charge of <strong>obtaining, managing, storing, organising, and delivering<\/strong> the data to companies in a meaningful and comprehensible way.&nbsp;<\/p>\n\n\n\n<p>To do this, Big Data specialists need to possess a combination of technical, analytical and business skills. Depending on their role, Big Data specialists are responsible for <strong>designing the processes and strategies<\/strong> that make the <strong>data accessible and understandable<\/strong> to decision-makers, so that they can make decisions based on it.&nbsp;<\/p>\n\n\n\n<p>Companies are increasingly investing in <strong>digital transformation<\/strong> and using <strong>Big Data platforms<\/strong>, as well as developing their <strong>own systems<\/strong> using <strong>cloud and\/or legacy components<\/strong>.<\/p>\n\n\n\n<p>Therefore, <strong>Big Data specialists<\/strong> must be well-versed in various programming languages (such as C and C++), technological applications, and cloud environments.<\/p>\n\n\n\n<p>By leveraging the power of Big Data, companies can gain a competitive edge and make informed business decisions that will help them remain successful.<\/p>\n\n\n\n<p class=\"has-text-align-center has-background\" style=\"background-color:#f3f3f3\"><strong>Connect with Big Data specialists around the world, no commission fees<br><\/strong>&gt; <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\">1.900+ Big Data experts available <\/a>&lt;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"Demand\">Big Data Experts Demand<\/h2>\n\n\n\n<p>There is currently a <strong>high demand for Big Data specialists<\/strong>, as many companies have already realised the <strong>importance of data<\/strong> and are in the process of digital transformation, making Big Data experts one of the most sought-after profiles.<\/p>\n\n\n\n<p>In our2022 <a href=\"https:\/\/www.freelancermap.com\/market-study\">freelancer study<\/a>, 41% of the surveyed IT freelancers agreed that \u201cBig Data\u201d was going to be one of the most relevant areas in the tech sector.<\/p>\n\n\n\n<p>The same report showed that in addition to <strong><a href=\"https:\/\/www.freelancermap.com\/freelancers-directory.html?filter=&amp;newQuery=cybersecurity&amp;continents=&amp;countries=&amp;states=&amp;city=&amp;radius=&amp;query=&amp;excludeDachRegion=0&amp;sort=1\">cybersecurity experts<\/a><\/strong>, <strong><a href=\"https:\/\/www.freelancermap.com\/freelancers-directory.html?filter=&amp;newQuery=AI+OR+%22Artificial+intelligence%22&amp;continents=&amp;countries=&amp;states=&amp;city=&amp;radius=&amp;query=&amp;excludeDachRegion=0&amp;sort=1\">AI professionals<\/a><\/strong> and <strong><a href=\"https:\/\/www.freelancermap.com\/freelancers-directory.html?filter=&amp;newQuery=%22cloud+architect%22&amp;continents=&amp;countries=&amp;states=&amp;city=&amp;radius=&amp;query=&amp;excludeDachRegion=0&amp;sort=1\">cloud architects<\/a><\/strong>, <strong>Big Data specialists<\/strong> were in high demand.<\/p>\n\n\n\n<p>Fast forward to <strong>2025<\/strong>, and the picture has shifted: AI now leads the way, with <strong>77% of freelancers<\/strong> naming it as the most relevant area, followed by <strong>automation tools (66%)<\/strong> and <strong>decentralized platforms (36%)<\/strong>. <\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"513\" data-src=\"https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2024\/08\/important-futur-technologies-for-freelancers-freelancer-study-freelancermap-1024x513.png\" alt=\"How important will sertain technologies be in the future according to the results of the Freelancer Study 2025 by freelancermap\" class=\"wp-image-46430 lazyload\" data-srcset=\"https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2024\/08\/important-futur-technologies-for-freelancers-freelancer-study-freelancermap-1024x513.png 1024w, https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2024\/08\/important-futur-technologies-for-freelancers-freelancer-study-freelancermap-300x150.png 300w, https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2024\/08\/important-futur-technologies-for-freelancers-freelancer-study-freelancermap-768x385.png 768w, https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2024\/08\/important-futur-technologies-for-freelancers-freelancer-study-freelancermap-1536x769.png 1536w, https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2024\/08\/important-futur-technologies-for-freelancers-freelancer-study-freelancermap-2048x1026.png 2048w, https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2024\/08\/important-futur-technologies-for-freelancers-freelancer-study-freelancermap-1920x962.png 1920w, https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2024\/08\/important-futur-technologies-for-freelancers-freelancer-study-freelancermap-720x361.png 720w, https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2024\/08\/important-futur-technologies-for-freelancers-freelancer-study-freelancermap-580x290.png 580w, https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2024\/08\/important-futur-technologies-for-freelancers-freelancer-study-freelancermap-320x160.png 320w\" data-sizes=\"(max-width: 1024px) 100vw, 1024px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1024px; --smush-placeholder-aspect-ratio: 1024\/513;\" \/><figcaption class=\"wp-element-caption\"><em>Most relevant IT areas according to 2025 Freelancer study<\/em><\/figcaption><\/figure>\n\n\n\n<p>While \u201cBig Data\u201d is not at the very top anymore, it remains deeply connected to AI, since advanced AI models rely on large-scale, high-quality data pipelines and analytics to function effectively. In other words, the <strong>demand for Big Data experts continues<\/strong>, but now often in tandem with <strong>AI-driven projects<\/strong>.<\/p>\n\n\n\n<p>ThThe demand for professionals is still higher than the supply, giving these experts a wide choice of where to work and strong working conditions (we will see <a href=\"#Salary\">salaries later<\/a>).<\/p>\n\n\n\n<p>On job boards, you\u2019ll frequently see postings for <strong>Data Architects, Data Analytics experts, Data Scientists or Big Data Developers<\/strong>.<\/p>\n\n\n\n<p>Considering the complexity of the data, it is common for companies with Big Data projects to have <strong>various Big Data specialists assigned to various phases of the data management lifecycle<\/strong>, now increasingly aligned with AI and automation.<\/p>\n\n\n\n<p class=\"has-text-align-center has-background\" style=\"background-color:#f3f3f3\"><strong>Big Data vs Data Science <\/strong><br><br>Big data and data science are two related but distinct concepts. The former refers to the collection, storage, and analysis of large amounts of data, while the latter is the application of statistical and analytical techniques to interpret the data and extract valuable insights. Big data is the foundation of data science and is used to create data-driven decisions, while data science is used to analyse and interpret data. <br><br><strong>Big Data specialists and Data Science specialists<\/strong> are often considered the same role and we should take a look at the exact responsibilities and tasks to see if that&#8217;s the case.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"Skills\">What are the skills needed for Big Data?<\/h2>\n\n\n\n<p>Working in the realm of <strong>big data requires a unique set of skills<\/strong> to be successful.&nbsp;<\/p>\n\n\n\n<p>We\u2019ll see later on that there are actually <strong>different roles with different responsibilities<\/strong> when working in Big Data. Depending on the exact role, some skills will be required over others.<\/p>\n\n\n\n<p>To be <strong>successful in the world of Big Data<\/strong>, you need to have the ability to combine <strong>technical expertise with traditional data analysis skills<\/strong> to extract meaningful insights from the immense amounts of data that are being processed each second.&nbsp;<\/p>\n\n\n\n<p>Furthermore, it is necessary to possess a sound understanding of <strong>programming, data analysis, and statistics<\/strong>, and be<strong> able to communicate<\/strong> the results to stakeholders effectively.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Programming: <\/strong>Some of the most used programming languages within Big Data are <strong>Java, Python, R, C++, Ruby, and Scala<\/strong>.&nbsp;<\/li>\n<\/ol>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li><strong>Frameworks:<\/strong> Frameworks such as <strong>Apache Spark, or Apache Storm <\/strong>as well as <strong>Hadoop<\/strong> or <strong>MapReduce<\/strong> help with Big Data processing.<\/li>\n<\/ol>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li><strong>Database Knowledge and Data Warehousing: <\/strong>Understanding of database principles and experience with relational (<strong>MySQL, Oracle<\/strong>) and non-relational (<strong>NoSQL, MongoDB, Cassandra, Hbase<\/strong>) database systems is required.<\/li>\n<\/ol>\n\n\n\n<ol start=\"4\" class=\"wp-block-list\">\n<li><strong>Data Mining: <\/strong>Ability to extract data from different sources, analyse it, and generate meaningful insights. There are data mining tools that can help such as <strong><a href=\"https:\/\/mahout.apache.org\/\" target=\"_blank\" rel=\"noreferrer noopener\">Apache Mahout<\/a> or Rapid Miner<\/strong>.<\/li>\n<\/ol>\n\n\n\n<ol start=\"5\" class=\"wp-block-list\">\n<li><strong>Machine Learning, Natural Language Processing (NLP) and AI:<\/strong> Knowledge of machine learning algorithms is required to develop AI-based applications. <a href=\"https:\/\/www.freelancermap.com\/blog\/what-does-nlp-engineer-do\/\"><strong>NLP<\/strong><\/a> allows the interaction between computers and humans and can also help as a <strong>Big Data expert<\/strong>.<\/li>\n<\/ol>\n\n\n\n<ol start=\"6\" class=\"wp-block-list\">\n<li>&nbsp;<strong>Statistical and Quantitative Analysis:<\/strong> An understanding of <strong>statistical methods<\/strong> and techniques is required to interpret data. Statistics are the base of data science and data analysis. Also, a strong background in <strong>maths <\/strong>will give you a great foundation.<\/li>\n<\/ol>\n\n\n\n<ol start=\"7\" class=\"wp-block-list\">\n<li><strong>Data Visualization: <\/strong>Knowledge of visualisation tools such as <strong>Tableau<\/strong> and <strong>D3.js<\/strong> is required for creating visualisations. Being able to use high-quality charts and graphs will affect the impact of the data.&nbsp;<\/li>\n<\/ol>\n\n\n\n<ol start=\"8\" class=\"wp-block-list\">\n<li><strong>Cloud Computing:<\/strong> Working with cloud-based Big Data solutions requires knowledge of cloud computing platforms (<strong>AWS, Microsoft Azure<\/strong>, etc.). Having familiarity with public and hybrid clouds would be useful too.<\/li>\n<\/ol>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"Profiles\">Professional profiles within Big Data<\/h2>\n\n\n\n<p>Depending on the requirements of each company, it will be possible to find<strong> different big data specialists<\/strong> with specific <strong>roles and responsibilities<\/strong>.<\/p>\n\n\n\n<p>It is common for companies to start by <strong>hiring a Big Data expert<\/strong> who is responsible for defining the initial strategy and requirements, and then <strong>building a team of Big Data specialists<\/strong>.<\/p>\n\n\n\n<p>Below we take you through the <strong>most in-demand big data profiles<\/strong>:<\/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<h3 class=\"wp-block-heading\">#1 Data Architect<\/h3>\n\n\n\n<p>The <strong><a href=\"https:\/\/www.freelancermap.com\/blog\/what-does-data-architect-do\/\">Data Architect<\/a><\/strong>, also known as <strong>Big Data Architect<\/strong>, is responsible for creating the <strong>technology architecture<\/strong> required to <strong>support all Big Data<\/strong> including the input, storage, reading and consumption of information.<\/p>\n\n\n\n<p>This professional <strong>understands the complete lifecycle of the Big Data solution<\/strong> and from there plans and designs the system and architecture. They are responsible for analysing the <strong>technical requirements<\/strong> and deciding which <strong>technologies to use<\/strong>.<\/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-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=%22data+architect%22&#038;continents=&#038;countries=&#038;states=&#038;city=&#038;radius=&#038;query=&#038;excludeDachRegion=0&#038;sort=1\" class=\"su-button su-button-style-default su-button-wide\" style=\"color:#FFFFFF;background-color:#5202FF;border-color:#4202cc;border-radius:10px\" target=\"_self\"><span style=\"color:#FFFFFF;padding:7px 20px;font-size:16px;line-height:24px;border-color:#864eff;border-radius:10px;text-shadow:none\"><i class=\"sui sui-user\" style=\"font-size:16px;color:#FFFFFF\"><\/i> <strong>Find Data Architects<\/strong><\/span><\/a><\/div>\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=%22Data+architecture%22+or+%22Data+architect%22&#038;continents=&#038;countries=&#038;states=&#038;city=&#038;radius=&#038;query=%22data+architecture%22+OR+%22data+architect%22&#038;excludeDachProjects=0&#038;sort=1\" class=\"su-button su-button-style-default su-button-wide\" style=\"color:#FFFFFF;background-color:#5202FF;border-color:#4202cc;border-radius:10px\" target=\"_self\"><span style=\"color:#FFFFFF;padding:7px 20px;font-size:16px;line-height:24px;border-color:#864eff;border-radius:10px;text-shadow:none\"><i class=\"sui sui-search\" style=\"font-size:16px;color:#FFFFFF\"><\/i> <strong>Data Architecture jobs<\/strong><\/span><\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<p><\/p>\n<\/div><\/div>\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<h3 class=\"wp-block-heading\">#2 Data engineer<\/h3>\n\n\n\n<p><strong><a href=\"https:\/\/www.freelancermap.com\/blog\/what-does-big-data-engineer-do\/\">Data engineers<\/a> or Big Data Engineers<\/strong> are responsible for <strong>monitoring, optimising and updating data management processes<\/strong>.<\/p>\n\n\n\n<p>They are responsible for the<strong> identification of data requirements for maintenance<\/strong>, the implementation of <strong>process improvements<\/strong> as well as the<strong> optimisation of the efficiency of the databases<\/strong>.<\/p>\n\n\n\n<p>Data Engineers work directly with the team to troubleshoot potential data management issues and create scalable big data systems based on requirements.<\/p>\n\n\n\n<p>They are also responsible for ensuring that the technology associated with the big data process is up to date and that it is in the latest version.<\/p>\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-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=%22data+engineer%22&#038;continents=&#038;countries=&#038;states=&#038;city=&#038;radius=&#038;query=&#038;excludeDachRegion=0&#038;sort=1\" class=\"su-button su-button-style-default su-button-wide\" style=\"color:#FFFFFF;background-color:#5202FF;border-color:#4202cc;border-radius:10px\" target=\"_self\"><span style=\"color:#FFFFFF;padding:7px 20px;font-size:16px;line-height:24px;border-color:#864eff;border-radius:10px;text-shadow:none\"><i class=\"sui sui-user\" style=\"font-size:16px;color:#FFFFFF\"><\/i> <strong>Find Data Engineers<\/strong><\/span><\/a><\/div>\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=%22data+engineer%22&#038;continents=&#038;countries=&#038;states=&#038;city=&#038;radius=&#038;query=&#038;excludeDachProjects=0&#038;sort=1\" class=\"su-button su-button-style-default su-button-wide\" style=\"color:#FFFFFF;background-color:#5202FF;border-color:#4202cc;border-radius:10px\" target=\"_self\"><span style=\"color:#FFFFFF;padding:7px 20px;font-size:16px;line-height:24px;border-color:#864eff;border-radius:10px;text-shadow:none\"><i class=\"sui sui-search\" style=\"font-size:16px;color:#FFFFFF\"><\/i> <strong>Data engineering jobs<\/strong><\/span><\/a><\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n<p><\/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<h3 class=\"wp-block-heading\">#3 Data Analyst<\/h3>\n\n\n\n<p>The <strong><a href=\"https:\/\/www.freelancermap.com\/blog\/what-does-data-analyst-do\/\">data analyst<\/a><\/strong>, also known as a big data analyst, is responsible for the <strong>analysis of quantitative and qualitative data<\/strong>.<\/p>\n\n\n\n<p>Depending on the needs of the business, they analyse and contextualise data and transform it into relevant information to support decision-making.<\/p>\n\n\n\n<p>It is their responsibility to<strong> identify errors and clean up corrupted data<\/strong>, as well as to prepare reports on trends and forecasts.<\/p>\n\n\n\n<p>They need <strong>data management skills<\/strong> as well as <strong>business skills<\/strong>.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-3 wp-block-columns-is-layout-flex\">\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=%22data+analyst%22&#038;continents=&#038;countries=&#038;states=&#038;city=&#038;radius=&#038;query=&#038;excludeDachRegion=0&#038;sort=1\" class=\"su-button su-button-style-default su-button-wide\" style=\"color:#FFFFFF;background-color:#5202FF;border-color:#4202cc;border-radius:10px\" target=\"_self\"><span style=\"color:#FFFFFF;padding:7px 20px;font-size:16px;line-height:24px;border-color:#864eff;border-radius:10px;text-shadow:none\"><i class=\"sui sui-user\" style=\"font-size:16px;color:#FFFFFF\"><\/i> <strong>Data Analytics Experts<\/strong><\/span><\/a><\/div>\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=%22data+analysis%22+or+%22data+analyst%22&#038;continents=&#038;countries=&#038;states=&#038;city=&#038;radius=&#038;query=&#038;excludeDachProjects=0&#038;sort=1\" class=\"su-button su-button-style-default su-button-wide\" style=\"color:#FFFFFF;background-color:#5202FF;border-color:#4202cc;border-radius:10px\" target=\"_self\"><span style=\"color:#FFFFFF;padding:7px 20px;font-size:16px;line-height:24px;border-color:#864eff;border-radius:10px;text-shadow:none\"><i class=\"sui sui-search\" style=\"font-size:16px;color:#FFFFFF\"><\/i> <strong>Data Analysis jobs<\/strong><\/span><\/a><\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\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<h3 class=\"wp-block-heading\">#4 Data Modeler <\/h3>\n\n\n\n<p>The <strong><a href=\"https:\/\/www.freelancermap.com\/blog\/what-does-data-modeler-do\/\">data modeller<\/a> <\/strong>or <strong>data modelling specialist<\/strong> is the professional responsible for processing the data collected by companies to establish its <strong>characteristics, relationships between data<\/strong> and possible <strong>practical uses<\/strong>.<\/p>\n\n\n\n<p>These professionals are <a href=\"https:\/\/www.freelancermap.com\/blog\/what-does-it-analyst-do\/\"><strong>systems analysts<\/strong><\/a> who often work with <strong>data architects<\/strong> and <strong>data managers<\/strong> to <strong>design databases and data models<\/strong> that turn complex data into <strong>usable systems<\/strong>.<\/p>\n\n\n\n<p><strong>Data modelling<\/strong> is an essential part of Business Intelligence and these professionals have extensive knowledge of data flows, and <strong>relational, dimensional or NoSQL databases<\/strong>.<\/p>\n\n\n\n<p>They are primarily responsible for <strong>transforming macro data<\/strong> into <strong>micro and macro trends<\/strong> that can be used in business decision-making.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-4 wp-block-columns-is-layout-flex\">\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=%22data+modeler%22&#038;continents=&#038;countries=&#038;states=&#038;city=&#038;radius=&#038;query=&#038;excludeDachRegion=0&#038;sort=1\" class=\"su-button su-button-style-default su-button-wide\" style=\"color:#FFFFFF;background-color:#5202FF;border-color:#4202cc;border-radius:10px\" target=\"_self\"><span style=\"color:#FFFFFF;padding:7px 20px;font-size:16px;line-height:24px;border-color:#864eff;border-radius:10px;text-shadow:none\"><i class=\"sui sui-user\" style=\"font-size:16px;color:#FFFFFF\"><\/i> <strong>Find Data Modellers<\/strong><\/span><\/a><\/div>\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=%22data+modeller%22+OR+%22data+modelling%22&#038;excludeDachProjects=0&#038;sort=1\" class=\"su-button su-button-style-default su-button-wide\" style=\"color:#FFFFFF;background-color:#5202FF;border-color:#4202cc;border-radius:10px\" target=\"_self\"><span style=\"color:#FFFFFF;padding:7px 20px;font-size:16px;line-height:24px;border-color:#864eff;border-radius:10px;text-shadow:none\"><i class=\"sui sui-search\" style=\"font-size:16px;color:#FFFFFF\"><\/i> <strong>Data modelling jobs<\/strong><\/span><\/a><\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n<p><\/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<h3 class=\"wp-block-heading\">#5 Data Scientist<\/h3>\n\n\n\n<p><strong><a href=\"https:\/\/www.freelancermap.com\/blog\/what-does-citizen-data-scientist-do\/\">Data Scientists<\/a><\/strong> are responsible for identifying <strong>trends and patterns<\/strong> in the data and finding solutions to problems that may arise in the data. For example, identifying <strong>gaps in available data<\/strong>.<\/p>\n\n\n\n<p>They are responsible for <strong>analysing, classifying, modelling and structuring data<\/strong> in order to extract the information needed for decision-making. They perform <strong>predictive analysis <\/strong>based on the company&#8217;s situation.<\/p>\n\n\n\n<p>This professional is a cross between a programmer, a mathematician and a statistician, and has knowledge and skills from all of these areas.<\/p>\n\n\n\n<p>They work closely with business intelligence teams to deliver <strong>data-driven solutions<\/strong> and also support the <strong>design of machine learning solutions<\/strong>.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-5 wp-block-columns-is-layout-flex\">\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=%22data+scientist%22&#038;continents=&#038;countries=&#038;states=&#038;city=&#038;radius=&#038;query=&#038;excludeDachRegion=0&#038;sort=1\" class=\"su-button su-button-style-default su-button-wide\" style=\"color:#FFFFFF;background-color:#5202FF;border-color:#4202cc;border-radius:10px\" target=\"_self\"><span style=\"color:#FFFFFF;padding:7px 20px;font-size:16px;line-height:24px;border-color:#864eff;border-radius:10px;text-shadow:none\"><i class=\"sui sui-user\" style=\"font-size:16px;color:#FFFFFF\"><\/i> <strong>Data Science specialists<\/strong><\/span><\/a><\/div>\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=%22data+scientist%22+OR+%22data+science%22&#038;excludeDachProjects=0&#038;sort=1\" class=\"su-button su-button-style-default su-button-wide\" style=\"color:#FFFFFF;background-color:#5202FF;border-color:#4202cc;border-radius:10px\" target=\"_self\"><span style=\"color:#FFFFFF;padding:7px 20px;font-size:16px;line-height:24px;border-color:#864eff;border-radius:10px;text-shadow:none\"><i class=\"sui sui-search\" style=\"font-size:16px;color:#FFFFFF\"><\/i> <strong>Jobs in Data Science<\/strong><\/span><\/a><\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n<p><\/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<h3 class=\"wp-block-heading\">#6 Data Administrator<\/h3>\n\n\n\n<p><a href=\"https:\/\/www.freelancermap.com\/blog\/what-does-database-administrator-do\/\"><strong>Data administrators<\/strong><\/a> are responsible for the <strong>design of database software<\/strong> and the definition of <strong>data storage structures<\/strong>.<\/p>\n\n\n\n<p>They are responsible for <strong>ensuring system performance and functionality<\/strong>. They aim to reduce <strong>database downtime<\/strong> and ensure that<strong> data transactions are performed at high speed<\/strong>.<\/p>\n\n\n\n<p>The data administrator manages the different levels of access and ensures data security through regular testing.<\/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-columns is-layout-flex wp-container-core-columns-is-layout-6 wp-block-columns-is-layout-flex\">\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=%22data+administrator%22&#038;continents=&#038;countries=&#038;states=&#038;city=&#038;radius=&#038;query=&#038;excludeDachRegion=0&#038;sort=1\" class=\"su-button su-button-style-default su-button-wide\" style=\"color:#FFFFFF;background-color:#5202FF;border-color:#4202cc;border-radius:10px\" target=\"_self\"><span style=\"color:#FFFFFF;padding:7px 20px;font-size:16px;line-height:24px;border-color:#864eff;border-radius:10px;text-shadow:none\"><i class=\"sui sui-user\" style=\"font-size:16px;color:#FFFFFF\"><\/i> <strong>Data Administration experts<\/strong><\/span><\/a><\/div>\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=%22data+admin%22+or+%22data+administrator%22+or+%22data+administration%22&#038;continents=&#038;countries=&#038;states=&#038;city=&#038;radius=&#038;query=&#038;excludeDachProjects=0&#038;sort=1\" class=\"su-button su-button-style-default su-button-wide\" style=\"color:#FFFFFF;background-color:#5202FF;border-color:#4202cc;border-radius:10px\" target=\"_self\"><span style=\"color:#FFFFFF;padding:7px 20px;font-size:16px;line-height:24px;border-color:#864eff;border-radius:10px;text-shadow:none\"><i class=\"sui sui-search\" style=\"font-size:16px;color:#FFFFFF\"><\/i> Data admin jobs<\/span><\/a><\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\n<\/div><\/div>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"1024\" height=\"768\" data-src=\"https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2023\/03\/professional-profiles-big-data.png\" alt=\"List of roles for Big Data specialists\" class=\"wp-image-37834 lazyload\" data-srcset=\"https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2023\/03\/professional-profiles-big-data.png 1024w, https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2023\/03\/professional-profiles-big-data-300x225.png 300w, https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2023\/03\/professional-profiles-big-data-768x576.png 768w, https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2023\/03\/professional-profiles-big-data-720x540.png 720w, https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2023\/03\/professional-profiles-big-data-580x435.png 580w, https:\/\/www.freelancermap.com\/blog\/wp-content\/uploads\/2023\/03\/professional-profiles-big-data-320x240.png 320w\" data-sizes=\"(max-width: 1024px) 100vw, 1024px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1024px; --smush-placeholder-aspect-ratio: 1024\/768;\" \/><figcaption class=\"wp-element-caption\"><em>List of roles for<strong> <\/strong>Big Data specialists<\/em><\/figcaption><\/figure><\/div>\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<h3 class=\"wp-block-heading\">#7 Big Data Developer<\/h3>\n\n\n\n<p><strong><a href=\"https:\/\/www.freelancermap.com\/blog\/what-does-big-data-developer-do\/\">Big Data Developers<\/a><\/strong>, also known as <strong>Data Developers<\/strong>, use programming languages to develop <strong>business applications <\/strong>that enable data to be extracted into <strong>understandable formats<\/strong>.<\/p>\n\n\n\n<p>These professionals need to understand different data sources, data structures and how they relate to each other in order to <a href=\"https:\/\/www.freelancermap.com\/blog\/what-does-etl-developer-do\/\">develop ETL processes<\/a>.<\/p>\n\n\n\n<p>Data engineers need both programming and analytical skills.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7 wp-block-columns-is-layout-flex\">\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=%22data+developer%22&#038;continents=&#038;countries=&#038;states=&#038;city=&#038;radius=&#038;query=&#038;excludeDachRegion=0&#038;sort=1\" class=\"su-button su-button-style-default su-button-wide\" style=\"color:#FFFFFF;background-color:#5202FF;border-color:#4202cc;border-radius:10px\" target=\"_self\"><span style=\"color:#FFFFFF;padding:7px 20px;font-size:16px;line-height:24px;border-color:#864eff;border-radius:10px;text-shadow:none\"><i class=\"sui sui-user\" style=\"font-size:16px;color:#FFFFFF\"><\/i> <strong>Big Data Developers<\/strong><\/span><\/a><\/div>\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=%22data+developer%22+or+%22data+development%22&#038;continents=&#038;countries=&#038;states=&#038;city=&#038;radius=&#038;query=&#038;excludeDachProjects=0&#038;sort=1\" class=\"su-button su-button-style-default su-button-wide\" style=\"color:#FFFFFF;background-color:#5202FF;border-color:#4202cc;border-radius:10px\" target=\"_self\"><span style=\"color:#FFFFFF;padding:7px 20px;font-size:16px;line-height:24px;border-color:#864eff;border-radius:10px;text-shadow:none\"><i class=\"sui sui-search\" style=\"font-size:16px;color:#FFFFFF\"><\/i> <strong>Data development jobs<\/strong><\/span><\/a><\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n<p><\/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<h3 class=\"wp-block-heading\">#8 Data Steward<\/h3>\n\n\n\n<p><strong><a href=\"https:\/\/www.freelancermap.com\/blog\/what-does-data-steward-do\/\">Data Stewards<\/a><\/strong> &#8211; aka data protectors or data guardians &#8211; are responsible for defining <strong>policies, regulations, and audits around data<\/strong>.<\/p>\n\n\n\n<p>They are also responsible for ensuring that these <strong>policies are enforced<\/strong> and that data implementation and management is carried out correctly.<\/p>\n\n\n\n<p>They are generally a figure who guides workers on <strong>data management regulations<\/strong> and manages <strong>security and operational protocols around the data<\/strong> that the company handles.<\/p>\n\n\n\n<p>Data Stewards are essentially the <strong>guardians of data<\/strong>, ensuring that it is handled <strong>securely and responsibly<\/strong>.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8 wp-block-columns-is-layout-flex\">\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=%22data+steward%22&#038;continents=&#038;countries=&#038;states=&#038;city=&#038;radius=&#038;query=&#038;excludeDachRegion=0&#038;sort=1\" class=\"su-button su-button-style-default su-button-wide\" style=\"color:#FFFFFF;background-color:#5202FF;border-color:#4202cc;border-radius:10px\" target=\"_self\"><span style=\"color:#FFFFFF;padding:7px 20px;font-size:16px;line-height:24px;border-color:#864eff;border-radius:10px;text-shadow:none\"><i class=\"sui sui-user\" style=\"font-size:16px;color:#FFFFFF\"><\/i> <strong>Data Steward professionals<\/strong><\/span><\/a><\/div>\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=%22data+steward%22+OR+%22data+stewardship%22&#038;continents=&#038;countries=&#038;states=&#038;city=&#038;radius=&#038;query=&#038;excludeDachProjects=0&#038;sort=1\" class=\"su-button su-button-style-default su-button-wide\" style=\"color:#FFFFFF;background-color:#5202FF;border-color:#4202cc;border-radius:10px\" target=\"_self\"><span style=\"color:#FFFFFF;padding:7px 20px;font-size:16px;line-height:24px;border-color:#864eff;border-radius:10px;text-shadow:none\"><i class=\"sui sui-search\" style=\"font-size:16px;color:#FFFFFF\"><\/i> <strong>Jobs for Data Stewards<\/strong><\/span><\/a><\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n<p><\/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<h3 class=\"wp-block-heading\">#9 Machine Learning Engineer<\/h3>\n\n\n\n<p>The <strong><a href=\"https:\/\/www.freelancermap.com\/blog\/what-does-machine-learning-engineer-do\/\">Machine Learning Engineer<\/a><\/strong> is responsible for utilising <strong>data-driven techniques to create AI algorithms and models<\/strong> for a specific purpose. They analyse data sets, develop and optimise ML models, and monitor the performance of the solutions they create.&nbsp;<\/p>\n\n\n\n<p>They also work with other teams to design and implement ML systems and schemas, troubleshoot any issues, and evaluate the effectiveness of their models.&nbsp;<\/p>\n\n\n\n<p>Additionally, they stay up-to-date with the latest advancements in the field to continuously improve their algorithms and models.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9 wp-block-columns-is-layout-flex\">\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=%22machine+learning%22&#038;continents=&#038;countries=&#038;states=&#038;city=&#038;radius=&#038;query=&#038;excludeDachRegion=0&#038;sort=1\" class=\"su-button su-button-style-default su-button-wide\" style=\"color:#FFFFFF;background-color:#5202FF;border-color:#4202cc;border-radius:10px\" target=\"_self\"><span style=\"color:#FFFFFF;padding:7px 20px;font-size:16px;line-height:24px;border-color:#864eff;border-radius:10px;text-shadow:none\"><i class=\"sui sui-user\" style=\"font-size:16px;color:#FFFFFF\"><\/i> <strong>ML experts<\/strong><\/span><\/a><\/div>\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=%22machine+learning%22&#038;continents=&#038;countries=&#038;states=&#038;city=&#038;radius=&#038;query=&#038;excludeDachProjects=0&#038;sort=1\" class=\"su-button su-button-style-default su-button-wide\" style=\"color:#FFFFFF;background-color:#5202FF;border-color:#4202cc;border-radius:10px\" target=\"_self\"><span style=\"color:#FFFFFF;padding:7px 20px;font-size:16px;line-height:24px;border-color:#864eff;border-radius:10px;text-shadow:none\"><i class=\"sui sui-search\" style=\"font-size:16px;color:#FFFFFF\"><\/i> <strong>Machine Learning jobs<\/strong><\/span><\/a><\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\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\">\n<h3 class=\"wp-block-heading\">#10 Data Visualisation Developer&nbsp;<\/h3>\n\n\n\n<p>The data visualisation developer or visual analytics specialist has a <strong>good understanding of data structure and the flow of data between systems<\/strong>. They have knowledge of <strong>user experience, neural network management, application design <\/strong>and<strong> programming<\/strong>.<\/p>\n\n\n\n<p>They must be able to <strong>create visualisations and dashboards<\/strong> that <strong>present data in a simple and logical way<\/strong>. Thanks to that, the Business Intelligence team will be able to <strong>understand the data and use it to support decision-making<\/strong>.<\/p>\n\n\n\n<p>They help ensure that the data is accurate, consistent and has good quality and that it is available for analysis and operational or analytical reporting.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-10 wp-block-columns-is-layout-flex\">\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=%22data+visualisation%22&#038;excludeDachRegion=0&#038;sort=1\" class=\"su-button su-button-style-default su-button-wide\" style=\"color:#FFFFFF;background-color:#5202FF;border-color:#4202cc;border-radius:10px\" target=\"_self\"><span style=\"color:#FFFFFF;padding:7px 20px;font-size:16px;line-height:24px;border-color:#864eff;border-radius:10px;text-shadow:none\"><i class=\"sui sui-user\" style=\"font-size:16px;color:#FFFFFF\"><\/i> <strong>Data Visualisation experts<\/strong><\/span><\/a><\/div>\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=%22data+visualisation%22&#038;continents=&#038;countries=&#038;states=&#038;city=&#038;radius=&#038;query=&#038;excludeDachProjects=0&#038;sort=1\" class=\"su-button su-button-style-default su-button-wide\" style=\"color:#FFFFFF;background-color:#5202FF;border-color:#4202cc;border-radius:10px\" target=\"_self\"><span style=\"color:#FFFFFF;padding:7px 20px;font-size:16px;line-height:24px;border-color:#864eff;border-radius:10px;text-shadow:none\"><i class=\"sui sui-search\" style=\"font-size:16px;color:#FFFFFF\"><\/i> <strong>Data visualization jobs<\/strong><\/span><\/a><\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">#11 Chief Data Officer (CDO)<\/h3>\n\n\n\n<p>The<strong> Chief Data Officer (CDO)<\/strong> is a C-level executive tasked with overseeing the data strategy of the company. They are responsible for defining the <strong>purpose of the data<\/strong>, determining which data is necessary, ensuring <strong>data availability, quality, and accuracy<\/strong>, and developing a <strong>data-driven business strategy<\/strong>.&nbsp;<\/p>\n\n\n\n<p>The CDO works to ensure that <strong>data is used optimally and effectively<\/strong> to support decision making within the company.<\/p>\n\n\n<div class=\"su-button-center\"><a href=\"https:\/\/www.freelancermap.com\/freelancers-directory.html?filter=&#038;newQuery=%22Chief+Data+Officer%22&#038;continents=&#038;countries=&#038;states=&#038;city=&#038;radius=&#038;query=&#038;excludeDachRegion=0&#038;sort=1\" class=\"su-button su-button-style-default\" style=\"color:#FFFFFF;background-color:#5202FF;border-color:#4202cc;border-radius:10px\" target=\"_self\"><span style=\"color:#FFFFFF;padding:7px 20px;font-size:16px;line-height:24px;border-color:#864eff;border-radius:10px;text-shadow:none\"><i class=\"sui sui-user\" style=\"font-size:16px;color:#FFFFFF\"><\/i> <strong>Hire a Fractional CDO<\/strong><\/span><\/a><\/div>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"Education\">How do I become a Big Data Specialist?<\/h2>\n\n\n\n<p>After examining the distinct roles in Big Data, it becomes evident that if one wants to specialise in a <strong>particular Big Data<\/strong> role, a deeper understanding of <strong>certain topic<\/strong>s is necessary.<\/p>\n\n\n\n<p>To become an <strong>expert in Big Data<\/strong>, it is essential to have a<strong> bachelor&#8217;s degree <\/strong>in a relevant field such as <strong>computer science, information technology, or mathematics<\/strong>. Companies will also look for experience in areas such as <strong>database management, data warehousing, or data analysis<\/strong>.<\/p>\n\n\n\n<p>To further hone your skills, you can take <strong>online courses<\/strong> in <a href=\"https:\/\/www.udemy.com\/topic\/hadoop\/\">Hadoop<\/a>, Apache Stark, Data Analysis, and other topics, as well as pursue <strong>certifications<\/strong>.&nbsp;<\/p>\n\n\n\n<p><strong>Interesting certification in the area of Big Data include:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/aws.amazon.com\/de\/certification\/certified-big-data-specialty\/\" target=\"_blank\" rel=\"noreferrer noopener\">Amazon AWS Certified Big Data<\/a>&nbsp;<\/li>\n\n\n\n<li><a href=\"https:\/\/cloud.google.com\/certification\/data-engineer\" target=\"_blank\" rel=\"noreferrer noopener\">Professional Data Engineer &#8211; Google<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/learn.microsoft.com\/en-us\/certifications\/power-bi-data-analyst-associate\/\" target=\"_blank\" rel=\"noreferrer noopener\">Microsoft Certified: Power BI Data Analyst Associate<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/learning.dell.com\/content\/dam\/dell-emc\/documents\/en-english\/D-AA-OP-23-Optimize_Data_Scientist_Advanced_Analytics_Exam.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Data Science Certification &#8211; Dell<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/education.oracle.com\/engineered-systems\/big-data-appliance\/product_210\" target=\"_blank\" rel=\"noreferrer noopener\">Oracle Big Data Appliance Training and Certification<\/a><\/li>\n<\/ul>\n\n\n\n<p><strong>Attending conferences <\/strong>and <strong>meetups related to Big Data<\/strong> can also be beneficial, as they provide an opportunity to stay up-to-date on the latest developments and build a network of contacts.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"Salary\">How much does a Big Data specialist make?<\/h2>\n\n\n\n<p>With the <strong>ever-growing demand for Big Data specialists<\/strong>, those who possess the necessary skills and experience can expect to be <strong>rewarded with a very attractive salary<\/strong>.&nbsp;<\/p>\n\n\n\n<p>The <strong>exact number varies<\/strong> a lot depending on country, region, employer size, level of seniority, specialization, and whether benefits\/bonuses\/equity are included.<\/p>\n\n\n\n<p>Examining the <strong>salaries of Big Data professionals in the United States<\/strong>, <strong>Big Data roles<\/strong> often have salaries above <strong>$150,000 per year<\/strong>. Furthermore, the salaries seem to be keeping up with the rising demand for <strong>competent Big Data specialists<\/strong>.<\/p>\n\n\n\n<p>According to <a href=\"https:\/\/www.northeastern.edu\/graduate\/blog\/highest-paying-big-data-careers\/\" target=\"_blank\" rel=\"noreferrer noopener\">Lightcast Analyst 2022 data<\/a>, the <strong>highest-paying Big Data positions <\/strong>are <strong>Big Data Engineers, Data Architects, and Data Modelers<\/strong>. <\/p>\n\n\n\n<p>Salaries in senior architectural roles often exceed <strong>$170,000 &#8211; $200,000+<\/strong> in 2025.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Big Data Rates for Freelancers<\/h3>\n\n\n\n<!--\n    Use the <style> below to style the box.\n\n    This <style> should ideally be placed inside <head><\/head>.\n      If that is not possible, keep it above the box itself.\n\n    If you use the box inside a container, that already limits the width,\n      set \"width: 100%\" inside #fm-hourly-rate-box.\n      This is necessary, if you like the box to be responsive.\n-->\n<style>\n    #fm-hourly-rate-box {\n        margin: auto;\n        width: 100%;\n        padding: 24px;\n        background: white;\n        border-radius: 10px;\n        box-shadow: 2px 4px 20px 0 rgb(90 90 90 \/ 16%);\n        text-align: center;\n        line-hight: 1.5\n    }\n\t   \n\t#fm-hourly-rate-box .fm-hourly-rate-rate {\n        font-size: 30px;\n        font-weight: bold;\n    }\n\n\n    #fm-hourly-rate-box .fm-hourly-rate-explain {\n\t\tmargin: 30px 0 0 0;\n}\n\n    #fm-hourly-rate-box .fm-hourly-rate-percentiles-text {\n\t\tmargin: 0;\n    }\n\t\n    #fm-hourly-rate-box .fm-daily-rate-rate {\n        font-size: 30px;\n        font-weight: bold;\n    }\n \n\n    #fm-hourly-rate-box .fm-date {\n\t    font-size: 12px;\n\t\tpadding-top: 25px;\n        \n    }\n\n<\/style>\n\n<div id=\"fm-hourly-rate-box\">\n\n    <p class=\"fm-hourly-rate-explain\"><b>Freelancers with Big Data knowledge<\/b> on <a href=\"\/freelancers-directory.html\">freelancermap<\/a> charge on average:<\/p>\n\t\n\t<div class=\"fm-hourly-rate-rate\">\n        $<span id=\"fm-hourly-rate-number\"><\/span>\/hour\n    <\/div>\n\n<p class=\"fm-hourly-rate-percentiles-text\">Rates in the field of Big Data range between  <b>$<span id=\"fm-hourly-rate-percentile25\">40<\/span> and $<span id=\"fm-hourly-rate-percentile75\">96<\/span>\/hour<\/b> for most freelancers.<\/p>\n\n<p class=\"fm-hourly-rate-explain\">The <b>daily rate for Big Data Freelancers<\/b> (8 working hours) would be around:<\/p>\n\n\t<div class=\"fm-daily-rate-rate\">\n            $<span id=\"fm-daily-rate-number\">640\/day<\/span>\/day\n    <\/div>\n    \n    <div class=\"fm-date\">\n        Stand <span id=\"fm-date-date\">27\/01\/2023<\/span> \n    <\/div>\n<\/div>\n\n\n\n<!--\n    This <script> loads the hourly-rate, daily-rate and date from the server when the page is loaded.\n     It must be placed below the box, ideally at the end of the page (e.g. footer).\n     \n    The server will respond with a formatted number, rounded to full euros.\n-->\n<script>\n    (function(){\n        \/\/ change this\n        const searchPhrase = 'Big data';\n\n        \/\/ keep this in sync with the domain you are using\n        const domain = 'www.freelancermap.com';\n\n        \/\/ do not change anything below\n        fetch(`https:\/\/${domain}\/price-index\/webhook?q=${encodeURIComponent(searchPhrase)}`)\n                .then(r => r.json())\n                .then(d => {document.getElementById('fm-hourly-rate-number').innerHTML = d.hourly;\n                            document.getElementById('fm-daily-rate-number').innerHTML = d.hourly*8;\n                            document.getElementById('fm-hourly-rate-percentile25').innerHTML = d.percentiles[\"25.0\"].toFixed(0);\n                            document.getElementById('fm-hourly-rate-percentile75').innerHTML = d.percentiles[\"75.0\"].toFixed(0);\n                            document.getElementById('fm-date-date').innerHTML = (new Date()).toLocaleDateString()\n                            });\n                }())\n<\/script>\n\n\n\n<p><\/p>\n\n\n\n<p>Nevertheless, freelancer rates may differ depending on the individual&#8217;s experience or where the freelancer lives.&nbsp;<\/p>\n\n\n\n<p>Let&#8217;s take a look at the <strong>hourly rates of Big Data experts<\/strong> in different countries and regions:<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Country<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>Rates 2023<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>Rates 2025<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>Change<\/strong><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Germany<\/td><td class=\"has-text-align-center\" data-align=\"center\">$97\/hour<\/td><td class=\"has-text-align-center\" data-align=\"center\">$112\/hour<\/td><td class=\"has-text-align-center\" data-align=\"center\">+15%<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Spain<\/td><td class=\"has-text-align-center\" data-align=\"center\">$55\/hour<\/td><td class=\"has-text-align-center\" data-align=\"center\">$55\/hour<\/td><td class=\"has-text-align-center\" data-align=\"center\">0%<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">UK<\/td><td class=\"has-text-align-center\" data-align=\"center\">$68\/hour<\/td><td class=\"has-text-align-center\" data-align=\"center\">$82\/hour<\/td><td class=\"has-text-align-center\" data-align=\"center\">+21%<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">France<\/td><td class=\"has-text-align-center\" data-align=\"center\">$73\/hour<\/td><td class=\"has-text-align-center\" data-align=\"center\">$88\/hour<\/td><td class=\"has-text-align-center\" data-align=\"center\">+21%<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Austria<\/td><td class=\"has-text-align-center\" data-align=\"center\">$105\/hour<\/td><td class=\"has-text-align-center\" data-align=\"center\">$117\/hour<\/td><td class=\"has-text-align-center\" data-align=\"center\">+11%<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Europe<\/td><td class=\"has-text-align-center\" data-align=\"center\">$103\/hour<\/td><td class=\"has-text-align-center\" data-align=\"center\">$111\/hour<\/td><td class=\"has-text-align-center\" data-align=\"center\">+8%<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/www.freelancermap.com\/freelancers-directory.html?filter=&amp;newQuery=&amp;continents=&amp;countries%5B%5D=31&amp;countries%5B%5D=45&amp;countries%5B%5D=49&amp;countries%5B%5D=86&amp;countries%5B%5D=142&amp;countries%5B%5D=139&amp;countries%5B%5D=112&amp;countries%5B%5D=51&amp;countries%5B%5D=63&amp;countries%5B%5D=173&amp;countries%5B%5D=184&amp;countries%5B%5D=43&amp;countries%5B%5D=189&amp;countries%5B%5D=111&amp;countries%5B%5D=186&amp;countries%5B%5D=185&amp;countries%5B%5D=54&amp;countries%5B%5D=88&amp;countries%5B%5D=116&amp;countries%5B%5D=99&amp;states=&amp;city=&amp;radius=&amp;query=%22big+data%22&amp;excludeDachRegion=0&amp;sort=1\">LATAM<\/a><\/td><td class=\"has-text-align-center\" data-align=\"center\">$22\/hour<\/td><td class=\"has-text-align-center\" data-align=\"center\">$20\/hour<\/td><td class=\"has-text-align-center\" data-align=\"center\">-9%<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Asia<\/td><td class=\"has-text-align-center\" data-align=\"center\">$30\/hour<\/td><td class=\"has-text-align-center\" data-align=\"center\">$30\/hour<\/td><td class=\"has-text-align-center\" data-align=\"center\">0%<\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\"><em>Freelancer rates based on the <a href=\"https:\/\/www.freelancermap.com\/freelancers-directory.html\">freelancermap rate index<\/a> as of April 2023 &amp; September 2025<\/em><\/figcaption><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"has-text-align-center has-background\" style=\"background-color:#f3f3f3\"><strong>Explore over <a href=\"https:\/\/www.freelancermap.com\/blog\/freelance-job-profiles-it-roles\/\">200 roles in IT<\/a><br><\/strong>Learn about the required skills, tasks, and salaries for each role and find the best match for you in the IT industry.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Big data specialists lists of different roles in big data<\/p>\n","protected":false},"author":1,"featured_media":38000,"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-37823","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 Specialist do? | Data &amp; IT Roles<\/title>\n<meta name=\"description\" content=\"\u2713 Understanding Big Data &amp; Data Science \u2713 Most in-demand profiles in Big Data \u2713 Best-paid Big Data roles \u2713 Skills &amp; 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