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    <title>Ha Thuc Quoc Hung | Backend Java Developer</title>
    <link>https://www.harryleon.id.vn</link>
    <description>Portfolio of Ha Thuc Quoc Hung, a Backend Java Developer focused on Java, Spring Boot, RESTful APIs, PostgreSQL, security, and microservices.</description>
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      <title>Why You Should Learn TypeScript</title>
      <link>https://www.harryleon.id.vn/blog/post6</link>
      <description>Understand the benefits of using TypeScript for writing safer, more maintainable JavaScript applications.</description>
      <pubDate>Sat, 22 Nov 2025 00:00:00 GMT</pubDate>
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      <title>Introduction to CSS Grid</title>
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      <description>Discover how CSS Grid can help you create powerful, responsive layouts with minimal effort.</description>
      <pubDate>Sun, 20 Apr 2025 00:00:00 GMT</pubDate>
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      <category>css</category>
      <category>web design</category>
      <category>frontend</category>
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      <title>Git Basics for Beginners</title>
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      <description>Learn what Git is, why it&apos;s important, and how to start version-controlling your projects.</description>
      <pubDate>Fri, 18 Apr 2025 00:00:00 GMT</pubDate>
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      <title>Styling at Scale: Tailwind CSS in Modern Frontend Development</title>
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      <description>Explore how Tailwind CSS simplifies styling in modern web apps, best practices for scalability, and real-world use cases.</description>
      <pubDate>Tue, 15 Apr 2025 00:00:00 GMT</pubDate>
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      <category>utility-first</category>
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      <title>Intro to React and How to Use It</title>
      <link>https://www.harryleon.id.vn/blog/post3</link>
      <description>Learn what React is, why it&apos;s popular, and how to create your first component.</description>
      <pubDate>Tue, 15 Apr 2025 00:00:00 GMT</pubDate>
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      <title>What is JavaScript? (+ Code Examples)</title>
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      <description>A beginner-friendly introduction to JavaScript, the language of the web.</description>
      <pubDate>Thu, 10 Apr 2025 00:00:00 GMT</pubDate>
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      <category>web development</category>
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      <title>Getting Started with Bash</title>
      <link>https://www.harryleon.id.vn/blog/post1</link>
      <description>Learn the basics of Bash scripting and how to automate tasks on Linux and Mac systems.</description>
      <pubDate>Tue, 01 Apr 2025 00:00:00 GMT</pubDate>
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      <category>bash</category>
      <category>shell</category>
      <category>scripting</category>
      <category>linux</category>
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      <title>Concurrency in Java</title>
      <link>https://www.harryleon.id.vn/blog/post9</link>
      <description>Learn the basics and advanced concepts of multithreading and concurrency in Java.</description>
      <pubDate>Tue, 12 Apr 2022 00:00:00 GMT</pubDate>
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      <category>concurrency</category>
      <category>threads</category>
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      <title>Introduction to Spring Boot</title>
      <link>https://www.harryleon.id.vn/blog/post8</link>
      <description>Learn what Spring Boot is and how it simplifies the development of Java-based web applications.</description>
      <pubDate>Fri, 01 Apr 2022 00:00:00 GMT</pubDate>
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      <category>web development</category>
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      <title>Caching in System Design: Redis, Memcached, and More</title>
      <link>https://www.harryleon.id.vn/blog/post14</link>
      <description>Learn about caching strategies, tools like Redis and Memcached, and their role in scalable system design.</description>
      <pubDate>Wed, 30 Mar 2022 00:00:00 GMT</pubDate>
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      <category>caching</category>
      <category>redis</category>
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      <category>performance</category>
      <category>system design</category>
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      <title>SQL vs NoSQL: Trade-offs and Applications</title>
      <link>https://www.harryleon.id.vn/blog/post13</link>
      <description>Explore the differences, trade-offs, and use cases for SQL and NoSQL databases.</description>
      <pubDate>Sun, 20 Mar 2022 00:00:00 GMT</pubDate>
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      <category>sql</category>
      <category>nosql</category>
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      <title>Load Balancers: Deep Dive</title>
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      <description>Understand load balancers, their types, drawbacks, implementation, and how they differ from reverse proxies.</description>
      <pubDate>Thu, 10 Mar 2022 00:00:00 GMT</pubDate>
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      <category>load balancer</category>
      <category>reverse proxy</category>
      <category>networking</category>
      <category>system design</category>
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      <title>System Design Fundamentals</title>
      <link>https://www.harryleon.id.vn/blog/post11</link>
      <description>Explore the core principles and patterns of system design for scalable, reliable applications.</description>
      <pubDate>Tue, 01 Mar 2022 00:00:00 GMT</pubDate>
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      <category>system design</category>
      <category>architecture</category>
      <category>scalability</category>
      <category>reliability</category>
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      <title>Understanding JVM Internals</title>
      <link>https://www.harryleon.id.vn/blog/post10</link>
      <description>Take a deep dive into the architecture and components of the Java Virtual Machine.</description>
      <pubDate>Sun, 20 Feb 2022 00:00:00 GMT</pubDate>
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      <category>internals</category>
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      <title>Getting Started with Java</title>
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      <description>A beginner-friendly introduction to Java, its syntax, features, and how to write your first Java program.</description>
      <pubDate>Sun, 30 Jan 2022 00:00:00 GMT</pubDate>
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