Learn How to Design Software Systems Like a Senior Engineer in Our New Course

<p>System design is one of the most important skills for software engineers today. Whether you're applying for senior or staff-level positions or just looking to level up your architectural knowledge, understanding how to design systems at scale is a deciding factor for top tech companies.</p> <p>To help you master these concepts and pass your interviews, we just published a comprehensive, 3-hour course on the freeCodeCamp.org YouTube channel: Design Software Systems Like a Senior Engineer.</p> <p>This complete course provides a practical, five-step framework for structuring your thinking, asking the right clarifying questions, and tackling vague requirements under pressure.</p> <p>This course grounds your learning in real-world production system examples that show up most often in interviews. You will learn how to apply the framework to build high-level architectures for massive platforms, including:</p> <ul> <li><p>Spotify</p> </li> <li><p>Booking.com</p> </li> <li><p>WhatsApp</p> </li> </ul> <p>You'll also learn the five dimensions you are actually evaluated on during system design interviews. You'll learn how to start with a simple architecture and naturally build upon it by identifying bottlenecks, managing your time, calculating storage and traffic estimates, and deeply discussing the trade-offs of different technical decisions (like choosing WebSockets over HTTP or adding load balancers).</p> <p>Watch the full course now on <a href="https://youtu.be/soTfFFIQQ8U">the freeCodeCamp.org YouTube channel</a> (3-hour watch).</p> <div class="embed-wrapper"><iframe width="560" height="315" src="https://www.youtube.com/embed/soTfFFIQQ8U" style="aspect-ratio: 16 / 9; width: 100%; height: auto;" title="YouTube video player" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen="" loading="lazy"></iframe></div>