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title: Hola, I'm Cesar Aguirre
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<img src="/assets/800x300.png" alt="Hola, I'm Cesar">

<h1>Hola, I’m Cesar Aguirre!</h1>

<p class="lead">I help teams grow high-quality backend code. And by high-quality, I mean maintainable and performant.</p>

<p>I’m a software engineer, lifelong learner, language enthusiast, and avid reader. I work remotely from Colombia <em>(not Columbia)</em> as a C# backend engineer and technical writer.</p>

<p>These are some projects I've done for past employers and clients:</p>

<ul>
<li>I wrote a library to connect 4 clients with legacy software to an invoicing platform by parsing pdf and plain text files into input XML files.</li>
<li>I improved the response time of the room search functionality of a booking page by a factor of ~1.5X, removing bad practices and adding a caching layer.</li>
</ul>

<figure><a href="/UnitTesting" data-goatcounter-click="UnitTesting101eBook-HomePage"><img src="/assets/UnitTesting101HomePage.png" alt="Download UnitTesting101 for free"/></a></figure>

<p>I blog to share my journey as a software engineer. I write about <a href="/tags/books/">books I read</a>, <a href="/tags/showdev/">libraries I use</a>, <a href="/tags/bugoftheday/">bugs I find</a>, and <a href="/tags/todayilearned/">things I learn</a>.</p>

<p>These are some of my favorite posts:</p>

<ul>
  <li><a href="/2020/03/23/GuideToNetCore/">ASP.NET Core Guide for ASP.NET Framework Users</a></li>
  <li><a href="/2020/06/29/HowToAddACacheLayer/">How to add a caching layer with ASP.NET Core</a></li>
  <li><a href="/2019/03/08/ATaleOfAPdfParser/">Parsinator, a tale of a PDF parser</a></li>
  <li><a href="/2019/03/22/WhatTheFuncAction/">What the Func, Action?</a></li>
  <li><a href="/2018/11/17/TheC-DefinitiveGuide/">The C# Definitive Guide</a></li>
</ul>

<p>Read <a href="/blog">my blog</a>, learn <a href="/about">about me</a>, and check <a href="/projects">my projects</a>.</p>

<p>Check <a href="https://www.udemy.com/user/cesar-aguirre-37/" target="_blank" rel="noopener noreferrer" data-goatcounter-click="Courses-Homepage">my courses</a>, download <a href="https://imcsarag.gumroad.com/" target="_blank" rel="noopener noreferrer" data-goatcounter-click="Gumroad-Homepage">my ebooks</a>, and subscribe to <a href="https://imcsarag.gumroad.com/subscribe" target="_blank" rel="noopener noreferrer" data-goatcounter-click="EmailList-Homepage">my email list</a>.</p>

<p><em>Happy coding!</em></p>