--- title: "Hamza Saidu (@Cyb3rguru) | Hashnode" description: "SE | Cybersecurity | CTF Player ......... Read the latest articles by Hamza Saidu on Hashnode." url: "https://hashnode.com/@Cyb3rguru" --- @Cyb3rguru # Hamza Saidu @Cyb3rguru · Joined June 2023 SE | Cybersecurity | CTF Player ......... [Website](https://vlog.cyb3rguru.tech/) ### [Exploring Basic Data Structures and Their Applications in LeetCode Problems](https://cyb3rguru.hashnode.dev/exploring-basic-data-structures-and-their-applications-in-leetcode-problems?utm_source=hashnode&utm_medium=feed) Data structures are the foundation of computer science, providing efficient ways to manage and organize data. This blog post delves into three fundamental data structures: Arrays, Linked Lists, and Stacks. We'll explore their characteristics, operati... 3 min read · [cyb3rguru.hashnode.dev](https://cyb3rguru.hashnode.dev/exploring-basic-data-structures-and-their-applications-in-leetcode-problems?utm_source=hashnode&utm_medium=feed) [Aug 7, 2024](https://hashnode.com/posts/exploring-basic-data-structures-and-their-applications-in-leetcode-problems/66b3cf390d77630518dff486) ### [System Design: Tips For Building User Scalable Systems](https://cyb3rguru.hashnode.dev/system-design-tips-for-building-user-scalable-systems?utm_source=hashnode&utm_medium=feed) My Journey in Solving a Complex Backend Challenge Hello, my name is Hamza Saidu, a recent graduate of the ALX Software Engineering program, where I specialized in the backend track. As I embark on the HNG Internship journey, I want to share a recent ... 3 min read · [cyb3rguru.hashnode.dev](https://cyb3rguru.hashnode.dev/system-design-tips-for-building-user-scalable-systems?utm_source=hashnode&utm_medium=feed) [Jun 29, 2024](https://hashnode.com/posts/system-design-tips-for-building-user-scalable-systems/667fe9b1fd29161f499a30e8) ### [How to solve Import Error: version \`Qt\_5.15' not found when using QT-PyQt-PySide-Custom-Widgets](https://cyb3rguru.hashnode.dev/how-to-solve-import-error-version-qt515-not-found-when-using-qt-pyqt-pyside-custom-widgets?utm_source=hashnode&utm_medium=feed) I encountered this error while I was using PySIde2 and Custom-Widgets to build a school project when following this tutorial on YouTube. After installing the Custom Widgets using pip and creating a new project space using Python I got the following e... 1 min read · [cyb3rguru.hashnode.dev](https://cyb3rguru.hashnode.dev/how-to-solve-import-error-version-qt515-not-found-when-using-qt-pyqt-pyside-custom-widgets?utm_source=hashnode&utm_medium=feed) [Aug 27, 2023](https://hashnode.com/posts/how-to-solve-import-error-version-qt515-not-found-when-using-qt-pyqt-pyside-custom-widgets/64eb3dbbf9e95f8700354427) ### [Building a Slack Bot with Go: Calculate User Age with Elegance and Efficiency](https://cyb3rguru.hashnode.dev/building-a-slack-bot-with-go-calculate-user-age-with-elegance-and-efficiency?utm_source=hashnode&utm_medium=feed) imagine a world where your Slack workspace becomes more than just a hub for collaboration, but also a playground for intelligent bots that simplify your team's daily tasks. in this article, We delve into the powerful realm of the Go programming langu... 8 min read · [cyb3rguru.hashnode.dev](https://cyb3rguru.hashnode.dev/building-a-slack-bot-with-go-calculate-user-age-with-elegance-and-efficiency?utm_source=hashnode&utm_medium=feed) [Jul 8, 2023](https://hashnode.com/posts/building-a-slack-bot-with-go-calculate-user-age-with-elegance-and-efficiency/64a8c12ab8883b6239e0384b)