{"id":9765,"date":"2023-08-02T16:18:03","date_gmt":"2023-08-02T19:18:03","guid":{"rendered":"https:\/\/eseg.edu.br\/blog\/o-que-e-sre\/"},"modified":"2026-05-12T00:24:21","modified_gmt":"2026-05-12T03:24:21","slug":"what-is-sre","status":"publish","type":"post","link":"https:\/\/eseg.edu.br\/en\/blog\/o-que-e-sre\/","title":{"rendered":"Have you ever heard of an SRE (Site Reliability Engineer)?"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"3893\" class=\"elementor elementor-3893\" data-elementor-post-type=\"post\">\n<div class=\"elementor-element elementor-element-4c3f2e1 e-flex e-con-boxed sticky-no is-skin bg-el bg-inherit bg-light nochange-no bg-no bg-no box-no e-con e-parent\" data-id=\"4c3f2e1\" data-element_type=\"container\">\n<div class=\"e-con-inner\">\n<div class=\"elementor-element elementor-element-7cd9705 elementor-widget elementor-widget-heading\" data-id=\"7cd9705\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n<div class=\"elementor-widget-container\">\n<h1 class=\"elementor-heading-title elementor-size-default\">Have you ever heard of an SRE (Site Reliability Engineer)?<\/h1>\n<\/p><\/div>\n<\/p><\/div>\n<div class=\"elementor-element elementor-element-377596ef elementor-widget elementor-widget-text-editor\" data-id=\"377596ef\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n<div class=\"elementor-widget-container\">\n<p>Nowadays, the reliability of websites and online services is of utmost importance for companies and organizations that rely on the internet to operate their businesses.\u00a0<\/p>\n<p>Significant downtime or unsatisfactory service performance can lead to financial losses and damage a company&#039;s valuation.\u00a0<\/p>\n<p>It is in this context that the role of the Site Reliability Engineer (SRE) emerges, whose main objective is to ensure that online systems and services operate reliably and efficiently.<\/p>\n<h2 class=\"wp-block-heading\"><strong>What is a Site Reliability Engineer (SRE)?<\/strong><\/h2>\n<p>A Site Reliability Engineer is a professional who combines skills of <span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/blog.eseg.edu.br\/desenvolvimento-de-software-e-melhores-praticas-de-codificacao\/\">software development<\/a><\/span> with experience in IT (Information Technology) operations.\u00a0<\/p>\n<p>The central idea is for these engineers to apply software engineering principles to improve the reliability, performance, scalability, and maintainability of online systems and services.<\/p>\n<p>Unlike traditional system administrators, whose focus may be on the day-to-day maintenance of systems, SRE adopts a more process-oriented and automated approach, aiming to eliminate error-prone manual tasks.<\/p>\n<h2 class=\"wp-block-heading\"><strong>Main responsibilities of an SRE<\/strong><\/h2>\n<h3 class=\"wp-block-heading\"><strong>Alert monitoring<\/strong><\/h3>\n<p>Site reliability engineers are responsible for setting up monitoring systems that track the health of services in real time. They create alerts that notify the team when something is about to go wrong or when a problem has already occurred.<\/p>\n<h3 class=\"wp-block-heading\"><strong>Incident resolution<\/strong><\/h3>\n<p>When problems occur, SRE acts quickly to diagnose and resolve the root causes. This approach aims to reduce downtime and restore service functionality as quickly as possible.<\/p>\n<h3 class=\"wp-block-heading\"><strong>Provisioning and Scalability<\/strong><\/h3>\n<p>In this area, reliability engineers collaborate with software engineers to ensure that systems have sufficient capacity to handle current and future demand. This includes applying horizontal scalability techniques to cope with increased traffic.<\/p>\n<h3 class=\"wp-block-heading\"><strong>Automation and tool development<\/strong><\/h3>\n<p>Automation is fundamental to the work of an SRE. They develop tools to automate routine tasks, allowing the team to focus on more strategic and complex activities.<\/p>\n<h2 class=\"wp-block-heading\"><strong>Areas of expertise for those specializing in SRE.<\/strong><\/h2>\n<p>A Site Reliability Engineer can work in various areas within a company or organization:<\/p>\n<h3 class=\"wp-block-heading\"><strong>Technology companies<\/strong><\/h3>\n<p>Large technology companies, such as Google, Facebook, Amazon, and Netflix, are known for pioneering the concept of SRE (Service-Related Expertise) and therefore offer many opportunities for specialized professionals.<\/p>\n<h3 class=\"wp-block-heading\"><strong>Startups<\/strong><\/h3>\n<p>Startups that offer online services also recognize the importance of reliability and, therefore, seek SREs to ensure that their products have a high level of quality and performance.<\/p>\n<h3 class=\"wp-block-heading\"><strong>Internet service providers<\/strong><\/h3>\n<p>Internet and web hosting providers also have a growing demand for SRE professionals to maintain the availability and performance of their services.<\/p>\n<h3 class=\"wp-block-heading\"><strong>Financial institutions<\/strong><\/h3>\n<p>The financial sector handles a significant amount of sensitive data and online transactions, which requires a specialized approach to ensure the reliability and security of the systems.<\/p>\n<h3 class=\"wp-block-heading\"><strong>Government and public sector<\/strong><\/h3>\n<p>Government agencies that provide online services, such as information portals and citizen service systems, can also benefit from the expertise of these engineers.<\/p>\n<h2 class=\"wp-block-heading\"><strong>What does it take to become a Site Reliability Engineer?<\/strong><\/h2>\n<p>To become a Site Reliability Engineer (SRE), it is necessary to acquire a skill set that encompasses both software development and systems operation.\u00a0<\/p>\n<p>Here are the main areas of study and knowledge needed to pursue this career:<\/p>\n<h3 class=\"wp-block-heading\"><strong>Programming Fundamentals<\/strong><\/h3>\n<p>Start by learning one or more popular programming languages, such as <span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/cursos.eseg.edu.br\/extensao\/python\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\" (opens in a new tab)\">Python<\/a><\/span>, Java, Go, or others. It is essential to be able to write efficient code and understand the basic principles of program structuring.<\/p>\n<p>At ESEG, we offer <span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/cursos.eseg.edu.br\/extensao\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\" (opens in a new tab)\">Professional Development courses<\/a><\/span> For those who want to learn Python, VBA, and other related topics.\u00a0<\/p>\n<p><a href=\"https:\/\/cursos.eseg.edu.br\/extensao\/python\/\"><strong>Python: Everything you need to know about the course<\/strong><\/a><\/p>\n<h3 class=\"wp-block-heading\"><strong>Operating systems<\/strong><\/h3>\n<p>Become familiar with the main operating systems, such as Linux and Windows. Deepen your knowledge of command-line tools, process management, file manipulation, and basic system administration.<\/p>\n<h3 class=\"wp-block-heading\"><strong>Networks and protocols<\/strong><\/h3>\n<p>Understand the fundamental concepts of computer networks, including TCP\/IP, DNS, HTTP, and other protocols used in communication between systems.<\/p>\n<h3 class=\"wp-block-heading\"><strong>Infrastructure as Code (IaC)<\/strong><\/h3>\n<p>Study the IaC approach, which consists of managing and provisioning infrastructure using code (for example, with tools like Terraform or Ansible).<\/p>\n<p>Check out our courses related to [topic] at ESEG College, part of the Etapa Group. <span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/eseg.edu.br\/en\/home\/course\/computing\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\" (opens in a new tab)\">technology areas<\/a><\/span> and sign up.\u00a0<\/p>\n<p><a href=\"https:\/\/eseg.edu.br\/en\/home\/course\/computing\/\"><strong>Computer Engineering: Everything you need to know about the course<\/strong><\/a><\/p>\n<p style=\"text-align: center;\">\n<\/p><\/div>\n<\/p><\/div>\n<div class=\"elementor-element elementor-element-9abc6bf elementor-widget elementor-widget-global elementor-global-6176 elementor-widget-text-editor\" data-id=\"9abc6bf\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n<div class=\"elementor-widget-container\">\n<h5><b>Follow ESEG College, part of the Etapa Group, on social media:\u00a0<\/b><\/h5>\n<\/p><\/div>\n<\/p><\/div>\n<div class=\"elementor-element elementor-element-0ef1f32 elementor-shape-circle elementor-grid-0 e-grid-align-center elementor-widget elementor-widget-global elementor-global-6173 elementor-widget-social-icons\" data-id=\"0ef1f32\" data-element_type=\"widget\" data-widget_type=\"social-icons.default\">\n<div class=\"elementor-widget-container\">\n<div 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359.2l-4.4-7c-18.5-29.4-28.2-63.3-28.2-98.2 0-101.7 82.8-184.5 184.6-184.5 49.3 0 95.6 19.2 130.4 54.1 34.8 34.9 56.2 81.2 56.1 130.5 0 101.8-84.9 184.6-186.6 184.6zm101.2-138.2c-5.5-2.8-32.8-16.2-37.9-18-5.1-1.9-8.8-2.8-12.5 2.8-3.7 5.6-14.3 18-17.6 21.8-3.2 3.7-6.5 4.2-12 1.4-32.6-16.3-54-29.1-75.5-66-5.7-9.8 5.7-9.1 16.3-30.3 1.8-3.7.9-6.9-.5-9.7-1.4-2.8-12.5-30.1-17.1-41.2-4.5-10.8-9.1-9.3-12.5-9.5-3.2-.2-6.9-.2-10.6-.2-3.7 0-9.7 1.4-14.8 6.9-5.1 5.6-19.4 19-19.4 46.3 0 27.3 19.9 53.7 22.6 57.4 2.8 3.7 39.1 59.7 94.8 83.8 35.2 15.2 49 16.5 66.6 13.9 10.7-1.6 32.8-13.4 37.4-26.4 4.6-13 4.6-24.1 3.2-26.4-1.3-2.5-5-3.9-10.5-6.6z\"><\/path><\/svg>\t\t\t\t\t<\/a><br \/>\n\t\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>","protected":false},"excerpt":{"rendered":"<p>Voc\u00ea j\u00e1 ouviu falar em SRE (Site Reliability Engineer)? Nos dias de hoje, a confiabilidade de sites e servi\u00e7os on-line \u00e9 de extrema import\u00e2ncia para as empresas e organiza\u00e7\u00f5es que dependem da internet para operar seus neg\u00f3cios.\u00a0 Um tempo de inatividade significativo ou um desempenho insatisfat\u00f3rio de um servi\u00e7o pode levar a perdas financeiras e prejudicar a avalia\u00e7\u00e3o da empresa.\u00a0 \u00c9 nesse contexto que surge o papel do Engenheiro de Confiabilidade de Sites (Site Reliability Engineer &#8211; SRE), cujo principal objetivo \u00e9 garantir que sistemas e servi\u00e7os on-line operem de forma confi\u00e1vel e eficiente. O que \u00e9 um Engenheiro de Confiabilidade de Sites (SRE)? Um Engenheiro de Confiabilidade de Sites \u00e9 um profissional que combina habilidades de desenvolvimento de software com experi\u00eancia em opera\u00e7\u00f5es de TI (Tecnologia da Informa\u00e7\u00e3o).\u00a0 A ideia central \u00e9 que estes engenheiros apliquem princ\u00edpios da engenharia de software para melhorar a confiabilidade, o desempenho, a escalabilidade e a manuten\u00e7\u00e3o de sistemas e servi\u00e7os on-line. Diferentemente dos administradores de sistemas tradicionais, cujo foco pode estar na manuten\u00e7\u00e3o di\u00e1ria dos sistemas, o SRE adota uma abordagem mais orientada a processos e automa\u00e7\u00e3o, visando a elimina\u00e7\u00e3o de tarefas manuais propensas a erros. Principais responsabilidades de um SRE Monitoramento de &hellip;<\/p>","protected":false},"author":4,"featured_media":9764,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[50,46,60],"tags":[],"class_list":["post-9765","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-engenharia-computacao","category-ensino-superior","category-tecnologia"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Voc\u00ea j\u00e1 ouviu falar em SRE (Site Reliability Engineer)?<\/title>\n<meta name=\"description\" content=\"Voc\u00ea j\u00e1 ouviu falar em SRE (Site Reliability Engineer)? | Faculdade ESEG\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/eseg.edu.br\/en\/blog\/what-is-sre\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Voc\u00ea j\u00e1 ouviu falar em SRE (Site Reliability Engineer)?\" \/>\n<meta property=\"og:description\" content=\"Voc\u00ea j\u00e1 ouviu falar em SRE (Site Reliability Engineer)? | Faculdade ESEG\" \/>\n<meta property=\"og:url\" content=\"https:\/\/eseg.edu.br\/en\/blog\/what-is-sre\/\" \/>\n<meta property=\"og:site_name\" content=\"Faculdade ESEG\" \/>\n<meta property=\"article:published_time\" content=\"2023-08-02T19:18:03+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-05-12T03:24:21+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/eseg.edu.br\/wp-content\/uploads\/2026\/05\/Blog-SRE.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"800\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Equipe ESEG\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/eseg.edu.br\\\/blog\\\/o-que-e-sre\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/eseg.edu.br\\\/blog\\\/o-que-e-sre\\\/\"},\"author\":{\"name\":\"Equipe ESEG\",\"@id\":\"https:\\\/\\\/eseg.edu.br\\\/#\\\/schema\\\/person\\\/bde8393e8d7a94b4e74dc3818d07f366\"},\"headline\":\"Voc\u00ea j\u00e1 ouviu falar em SRE (Site Reliability Engineer)?\",\"datePublished\":\"2023-08-02T19:18:03+00:00\",\"dateModified\":\"2026-05-12T03:24:21+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/eseg.edu.br\\\/blog\\\/o-que-e-sre\\\/\"},\"wordCount\":854,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/eseg.edu.br\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/eseg.edu.br\\\/blog\\\/o-que-e-sre\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/eseg.edu.br\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/Blog-SRE.png\",\"articleSection\":[\"Engenharia de Computa\u00e7\u00e3o\",\"Ensino Superior\",\"Tecnologia\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/eseg.edu.br\\\/blog\\\/o-que-e-sre\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/eseg.edu.br\\\/blog\\\/o-que-e-sre\\\/\",\"url\":\"https:\\\/\\\/eseg.edu.br\\\/blog\\\/o-que-e-sre\\\/\",\"name\":\"Voc\u00ea j\u00e1 ouviu falar em SRE (Site Reliability Engineer)?\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/eseg.edu.br\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/eseg.edu.br\\\/blog\\\/o-que-e-sre\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/eseg.edu.br\\\/blog\\\/o-que-e-sre\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/eseg.edu.br\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/Blog-SRE.png\",\"datePublished\":\"2023-08-02T19:18:03+00:00\",\"dateModified\":\"2026-05-12T03:24:21+00:00\",\"description\":\"Voc\u00ea j\u00e1 ouviu falar em SRE (Site Reliability Engineer)? | Faculdade ESEG\",\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/eseg.edu.br\\\/blog\\\/o-que-e-sre\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/eseg.edu.br\\\/blog\\\/o-que-e-sre\\\/#primaryimage\",\"url\":\"https:\\\/\\\/eseg.edu.br\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/Blog-SRE.png\",\"contentUrl\":\"https:\\\/\\\/eseg.edu.br\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/Blog-SRE.png\",\"width\":1200,\"height\":800,\"caption\":\"Blog-SRE\"},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/eseg.edu.br\\\/#website\",\"url\":\"https:\\\/\\\/eseg.edu.br\\\/\",\"name\":\"Faculdade ESEG\",\"description\":\"Faculdade presencial em S\u00e3o Paulo. 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