<h2 id="technical-skills"><a aria-hidden="true" tabindex="-1" href="#technical-skills"><span class="icon icon-link"></span></a>Technical Skills</h2>
<ul>
<li><strong>Languages</strong>: Java, C/C++, JavaScript, Python, PHP, HTML/CSS, Node.js, SQL</li>
<li><strong>Frameworks/Libraries</strong>: React, Angular, Backbone, jQuery, Bootstrap, Spring, Android</li>
<li><strong>Other</strong>: AWS, Git, Intellij IDEA, Adobe Photoshop, Linux &#x26; Bash Scripting</li>
</ul>
<h2 id="work-experience"><a aria-hidden="true" tabindex="-1" href="#work-experience"><span class="icon icon-link"></span></a>Work Experience</h2>
<h3 id="apple--senior-software-development-engineer"><a aria-hidden="true" tabindex="-1" href="#apple--senior-software-development-engineer"><span class="icon icon-link"></span></a>Apple - Senior Software Development Engineer</h3>
<p><em>Vancouver, Canada | Sept '22-Present</em></p>
<ul>
<li>Building systems for AppStoreConnect In-App Purchases and Subscriptions</li>
</ul>
<h3 id="instacart--senior-software-development-engineer"><a aria-hidden="true" tabindex="-1" href="#instacart--senior-software-development-engineer"><span class="icon icon-link"></span></a>Instacart - Senior Software Development Engineer</h3>
<p><em>Vancouver, Canada | Feb ‘21-Sept '22</em></p>
<ul>
<li>Designed and built the new Display Ads offering and Ads Integrity review flow for AdsManager</li>
</ul>
<h3 id="amazon---senior-software-development-engineer"><a aria-hidden="true" tabindex="-1" href="#amazon---senior-software-development-engineer"><span class="icon icon-link"></span></a>Amazon - Senior Software Development Engineer</h3>
<p><em>Vancouver, Canada | Nov ‘16-Present</em></p>
<ul>
<li>Designed the transportation and logistics tools that drive the ultimate customer experience when they purchase from Amazon.</li>
<li>Developed complex distributed systems that help drive Amazon Freight business and utilize the transportation network.</li>
<li>Designed and developed the Amazon Freight portal, a multi-team owned Single-page application using React, Redux</li>
</ul>
<h3 id="mediahead-ag--software-engineer"><a aria-hidden="true" tabindex="-1" href="#mediahead-ag--software-engineer"><span class="icon icon-link"></span></a>Mediahead AG - Software Engineer</h3>
<p><em>Zurich, Switzerland | Oct ‘15-Aug’16</em></p>
<ul>
<li>Designed and implemented the new user interface of the Online Advertisement Management Tool and made it responsive, interactive and more robust with the help of AngularJS and Bootstrap.</li>
<li>Optimized and migrated the server-side legacy code from PHP and SQL to Node.js and MongoDB.</li>
</ul>
<h3 id="cern--scientific-computing-operations"><a aria-hidden="true" tabindex="-1" href="#cern--scientific-computing-operations"><span class="icon icon-link"></span></a>CERN - Scientific Computing Operations</h3>
<p><em>Geneva, Switzerland | Sept ‘13-Oct ‘15</em></p>
<ul>
<li>Operated a large and distributed computing infrastructure with 260.000 cores and 180 PB disk storage to handle experiment data.</li>
<li>Provided support for thousands of internationally distributed colleagues from 26 different countries.</li>
<li>Automatized the disk consistency checks to reduce human interactions and possible user faults using Python, Perl, Javascript.</li>
<li>Developed monitoring tools for time-critical activities to detect problems early which reduced the effort spent by our team on the regular tasks by 75%.</li>
</ul>
<h3 id="milsoft--software-engineer"><a aria-hidden="true" tabindex="-1" href="#milsoft--software-engineer"><span class="icon icon-link"></span></a>MilSOFT - Software Engineer</h3>
<p><em>Ankara, Turkey | Feb ‘13-Sept ‘13</em></p>
<ul>
<li>Implemented in C++ an avionics system for military air-crafts and ground forces to exchange individual tactical data such as radar information with other ally units in near-real-time.</li>
</ul>
<h3 id="srdc---software-engineer"><a aria-hidden="true" tabindex="-1" href="#srdc---software-engineer"><span class="icon icon-link"></span></a>SRDC - Software Engineer</h3>
<p><em>Ankara, Turkey | July ‘11-Feb ‘13</em></p>
<ul>
<li>Contributed to the open-source Apache Stanbol project which extends traditional content management systems with semantic services.</li>
<li>Implemented in Java, as part of a four-member team, one of the key components of the project, namely Contenthub, an Apache Solr based document repository.</li>
<li>Used a variety of Java technologies such as JDBC, JUnit, Hibernate and JAXB as well as Apache Projects such as Sling, Maven, Felix, Clerezza and Derby.</li>
</ul>
<h2 id="education"><a aria-hidden="true" tabindex="-1" href="#education"><span class="icon icon-link"></span></a>Education</h2>
<p><strong>Middle East Technical University - Computer Engineering, B.Sc.</strong><br>
<em>Ankara, Turkey | Sept ‘08-June ‘13</em><br>
GPA: 3.43/4.0, Honors Degree</p>
<h2 id="interests-and-activities"><a aria-hidden="true" tabindex="-1" href="#interests-and-activities"><span class="icon icon-link"></span></a>Interests and Activities</h2>
<ul>
<li>Committer at Apache Software Foundation</li>
<li>Playing guitar and chess</li>
</ul>

Maybe you’re just getting started with distributed systems and system design, or you just need a quick recap for your upcoming interview. In either case, in this post, you’ll find the most common concepts of system design and the most important aspects of them. Let’s get started.

Recap of System Design Interview Concepts

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What happens when you hit google.com using HTTPS

We are going to create a single component that supports text, textarea, select, radio, and checkbox. It will absorb all implementation differences for different inputs and will allow us using a unified component in our Formik forms.

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How to Succeed in Your System Design Interview

Attacks like CSRF or XSS are still not clear to many of us. It is not because they are super hard to understand, but it requires some basic understanding of concepts like SOP, CORS, CSP, HTTPS. Let's start with what's Same-origin Policy

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