<?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0" xmlns:media="http://search.yahoo.com/mrss/"><channel><title><![CDATA[Cals]]></title><description><![CDATA[Data and Machine Learning content]]></description><link>https://www.otaviocals.com/</link><image><url>https://www.otaviocals.com/favicon.png</url><title>Cals</title><link>https://www.otaviocals.com/</link></image><generator>Ghost 4.41</generator><lastBuildDate>Sat, 09 May 2026 02:45:07 GMT</lastBuildDate><atom:link href="https://www.otaviocals.com/rss/" rel="self" type="application/rss+xml"/><ttl>60</ttl><item><title><![CDATA[Welcome!]]></title><description><![CDATA[<p>I&apos;d like to welcome everyone to my new blog, where I will be writing about data-related topics and careers. My goal is to share some of my thoughts related to the field through analysis of the latest trends and technologies, as well as my previous experiences acquired throughout</p>]]></description><link>https://www.otaviocals.com/welcome/</link><guid isPermaLink="false">6245f797f82acb20ed6d3ba7</guid><category><![CDATA[Blog]]></category><category><![CDATA[ENG]]></category><dc:creator><![CDATA[Otavio Cals]]></dc:creator><pubDate>Mon, 28 Mar 2022 17:41:25 GMT</pubDate><media:content url="https://www.otaviocals.com/content/images/2022/03/IMG_20200301_135901_1_o-2-1.jpg" medium="image"/><content:encoded><![CDATA[<img src="https://www.otaviocals.com/content/images/2022/03/IMG_20200301_135901_1_o-2-1.jpg" alt="Welcome!"><p>I&apos;d like to welcome everyone to my new blog, where I will be writing about data-related topics and careers. My goal is to share some of my thoughts related to the field through analysis of the latest trends and technologies, as well as my previous experiences acquired throughout my career. If you&apos;re a Data Scientist, Data Engineer, ML Engineer, BI Analyst or a management role leading data-driven teams, then I hope this blog will provide some insights and I will strive to do so.</p><p></p><!--kg-card-begin: markdown--><h3 id="ok-but-who-are-you">Ok, but who are you?</h3>
<!--kg-card-end: markdown--><figure class="kg-card kg-image-card"><img src="https://www.otaviocals.com/content/images/2022/03/olimpica_o-8.jpeg" class="kg-image" alt="Welcome!" loading="lazy" width="750" height="272" srcset="https://www.otaviocals.com/content/images/size/w600/2022/03/olimpica_o-8.jpeg 600w, https://www.otaviocals.com/content/images/2022/03/olimpica_o-8.jpeg 750w" sizes="(min-width: 720px) 720px"></figure><p>Hi, my name is Otavio Cals, nice to meet you! I&apos;ve been working with data since 2016, fulfilling roles such as data scientist, ML engineer and data engineer. I also have worked previously as tech lead of data teams where I sought to build bridges between technical-minded people and business managers, and helped on decision-making processes, driving the business impact of data products and building short and long term plans for data-driven strategies.</p><p>Before working in data-related fields, I also worked for 4 years in a quantum optics lab, where I built quantum-secure communication modules with the intent of driving innovation in the field and improving science communication in Brazil.</p><p>On a personal note, I&apos;m a huge musichead, specially jazz. I love to spend some of my free time playing saxophone. Also, I have a cat named Bowie!</p><p></p><!--kg-card-begin: markdown--><h3 id="what-can-i-expect-from-this-blog">What can I expect from this blog?</h3>
<!--kg-card-end: markdown--><p></p><p>In this blog, I will be presenting and analyzing some data products and technologies aimed toward data teams. You can expect posts about Airflow, Kubeflow, Kubernetes, AWS Sagemaker, GCP Vertex AI and many other topics.</p><p>I will also be sharing some of my previous experience and broader insights acquired throughout my career, like best practices when developing data products, how to deal with data and concept drifts, how to manage model lifecycles, and so on.</p><p>To kick-start this blog, I will be publishing a series of introductory posts about MLOps over the next upcoming weeks.</p><figure class="kg-card kg-image-card kg-card-hascaption"><img src="https://www.otaviocals.com/content/images/2022/03/MLOps-Neal-Analytics_o-1-1.png" class="kg-image" alt="Welcome!" loading="lazy" width="800" height="352" srcset="https://www.otaviocals.com/content/images/size/w600/2022/03/MLOps-Neal-Analytics_o-1-1.png 600w, https://www.otaviocals.com/content/images/2022/03/MLOps-Neal-Analytics_o-1-1.png 800w" sizes="(min-width: 720px) 720px"><figcaption>Source: Neal Analytics</figcaption></figure><!--kg-card-begin: markdown--><h3 id="with-wich-frequency-will-this-blog-be-updated">With wich frequency will this blog be updated?</h3>
<!--kg-card-end: markdown--><p></p><p>This blog is in a process of continuous transformation, specially during this initial period where many kinks are still being ironed out. Due to that, I won&apos;t settle for a schedule 100% set in stone, although after the initial period I will aim to post about once or twice a month.</p><p>Given the slower frequency of updates on this blog, I will try to configure over the next few days a Medium integration and create a Newsletter for those that would like to know about new posts as soon as they are up.</p><p></p><!--kg-card-begin: markdown--><h3 id="closing-thoughts">Closing thoughts</h3>
<!--kg-card-end: markdown--><p></p><p>I&apos;d like to thank everyone that has read up to this point! I hope that you find my content interesting and that it will be able to help in some shape or form on your journey across a data career.</p><p>Once again, thank you very much for your attention and stay tuned for the upcoming posts!</p>]]></content:encoded></item><item><title><![CDATA[Bem-vindos!]]></title><description><![CDATA[<p>Eu gostaria de dar as boas-vindas a todos ao meu novo blog, onde vou buscar escrever sobre o mercado de dados em todas as suas pluralidades. Meu objetivo &#xE9; compartilhar um pouco da minha vis&#xE3;o do mercado, analisando as &#xFA;ltimas tend&#xEA;ncias e tecnologias, e contribuir</p>]]></description><link>https://www.otaviocals.com/bem-vindos-2/</link><guid isPermaLink="false">6245f80bf82acb20ed6d3bc9</guid><category><![CDATA[Blog]]></category><category><![CDATA[PT-BR]]></category><dc:creator><![CDATA[Otavio Cals]]></dc:creator><pubDate>Mon, 28 Mar 2022 17:00:35 GMT</pubDate><media:content url="https://www.otaviocals.com/content/images/2022/03/IMG_20200301_135901_1_o-2.jpg" medium="image"/><content:encoded><![CDATA[<img src="https://www.otaviocals.com/content/images/2022/03/IMG_20200301_135901_1_o-2.jpg" alt="Bem-vindos!"><p>Eu gostaria de dar as boas-vindas a todos ao meu novo blog, onde vou buscar escrever sobre o mercado de dados em todas as suas pluralidades. Meu objetivo &#xE9; compartilhar um pouco da minha vis&#xE3;o do mercado, analisando as &#xFA;ltimas tend&#xEA;ncias e tecnologias, e contribuir com a comunidade compartilhando conhecimentos adquiridos ao longo da minha trajet&#xF3;ria. &#x200C;&#x200C;Se voc&#xEA; &#xE9; um Cientista de Dados, Engenheiro de Dados, Engenheiro de Machine Learning, Analista de BI ou exerce alguma fun&#xE7;&#xE3;o estrat&#xE9;gica de lideran&#xE7;a atrelada a equipes data-driven, ent&#xE3;o acredito que esse blog possa agregar algum conhecimento para voc&#xEA; e vou trabalhar continuamente para faz&#xEA;-lo.</p><p></p><h3 id="beleza-mas-quem-%C3%A9-voce%E2%80%8C">Beleza, mas quem &#xE9; voce?&#x200C;</h3><figure class="kg-card kg-image-card"><img src="https://www.otaviocals.com/content/images/2022/03/olimpica-8.jpeg" class="kg-image" alt="Bem-vindos!" loading="lazy" width="750" height="272" srcset="https://www.otaviocals.com/content/images/size/w600/2022/03/olimpica-8.jpeg 600w, https://www.otaviocals.com/content/images/2022/03/olimpica-8.jpeg 750w" sizes="(min-width: 720px) 720px"></figure><p>Prazer, meu nome &#xE9; Ot&#xE1;vio Cals! Atuo no mercado de dados desde 2016, exercendo fun&#xE7;&#xF5;es de cientista de dados, engenheiro de ML e engenheiro de dados. Tamb&#xE9;m j&#xE1; atuei como lead de equipes de dados, onde busquei construir pontes entre equipes t&#xE9;cnicas e gestores, auxiliando no processo de tomada de decis&#xE3;o, maximizando o impacto gerado por produtos de dados sob o business de companhias e ajudando estas a adotar vis&#xF5;es data-driven a curto e longo prazo.&#x200C;</p><p>&#x200C;Antes disso, trabalhei 4 anos em um laborat&#xF3;rio de &#xF3;ptica qu&#xE2;ntica, onde busquei construir m&#xF3;dulos de comunica&#xE7;&#xE3;o quanticamente segura com o intuito de gerar novos avan&#xE7;os na &#xE1;rea e contribuir com a divulga&#xE7;&#xE3;o cient&#xED;fica nacional.</p><p>Fora isso, sou um amante de m&#xFA;sica, particularmente jazz. Uma boa parte do meu tempo livre dedico a tocar saxofone. Ah! Tamb&#xE9;m tenho um gato chamado Bowie!</p><p></p><!--kg-card-begin: markdown--><h3 id="o-que-esperar-desse-blog">O que esperar desse blog?</h3>
<!--kg-card-end: markdown--><p></p><p>Nesse blog eu vou trazer apresenta&#xE7;&#xF5;es e an&#xE1;lises de alguns produtos e solu&#xE7;&#xF5;es voltados a atender as demandas de equipes de dados. Voc&#xEA; pode esperar artigos sobre Airflow, Kubeflow, Kubernetes, AWS Sagemaker, GCP Vertex AI, entre outros.</p><p>Tamb&#xE9;m vou compartilhar alguns conhecimentos mais gerais adquiridos ao longo do tempo, como boas pr&#xE1;ticas para o desenvolvimento de produtos de dados, como lidar com drifts de dados e de conceitos, como realizar a gest&#xE3;o de ciclo de vida de modelos, e por a&#xED; vai.</p><p>Para dar o pontap&#xE9; inicial do blog, estou preparando uma s&#xE9;rie de artigos introdut&#xF3;rios sobre MLOps que vou lan&#xE7;ar em partes ao longo das pr&#xF3;ximas semanas.</p><figure class="kg-card kg-image-card kg-card-hascaption"><img src="https://www.otaviocals.com/content/images/2022/03/MLOps-Neal-Analytics_o-1.png" class="kg-image" alt="Bem-vindos!" loading="lazy" width="800" height="352" srcset="https://www.otaviocals.com/content/images/size/w600/2022/03/MLOps-Neal-Analytics_o-1.png 600w, https://www.otaviocals.com/content/images/2022/03/MLOps-Neal-Analytics_o-1.png 800w" sizes="(min-width: 720px) 720px"><figcaption>Fonte: Neal Analytics</figcaption></figure><!--kg-card-begin: markdown--><h3 id="qual-vai-ser-a-frequ%C3%AAncia-de-novos-posts">Qual vai ser a frequ&#xEA;ncia de novos posts?</h3>
<!--kg-card-end: markdown--><p></p><p>Esse blog &#xE9; um processo em cont&#xED;nua transforma&#xE7;&#xE3;o, principalmente neste per&#xED;odo inicial onde muitos pontos ainda est&#xE3;o sendo estabelecidos. Sendo assim, n&#xE3;o vou definir uma frequ&#xEA;ncia 100% r&#xED;gida de atualiza&#xE7;&#xF5;es, mas ap&#xF3;s esse per&#xED;odo inicial, vou buscar escrever novas postagens cerca de 1 ou 2 vezes ao m&#xEA;s.</p><p>Dada a frequ&#xEA;ncia inconstante das postagens, vou buscar configurar nos pr&#xF3;ximos dias integra&#xE7;&#xF5;es com o Medium e a cria&#xE7;&#xE3;o de uma Newsletter por email para aqueles que se interessarem pelo meu conte&#xFA;do possam ser informados sempre que houver uma nova postagem.</p><p></p><!--kg-card-begin: markdown--><h3 id="finalizando">Finalizando</h3>
<!--kg-card-end: markdown--><p></p><p>Gostaria de agradecer pela aten&#xE7;&#xE3;o e por ler at&#xE9; aqui! Espero que voc&#xEA;s achem o conte&#xFA;do que vou trazer aqui interessante e que eu possa, de alguma forma, ajudar os membros de nossa comunidade em suas pr&#xF3;prias jornadas individuais de forma que todos n&#xF3;s possamos crescer juntos.</p><p>Mais uma vez, meus agradecimentos pela leitura e fiquem atentos &#xE0;s pr&#xF3;ximas postagens que est&#xE3;o pra vir!</p>]]></content:encoded></item></channel></rss>