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https://github.com/xandersteyn/hyperiondev

Official HyperionDev software engineering projects by Xander Steyn
https://github.com/xandersteyn/hyperiondev

hyperiondev portfolio software-engineering

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Official HyperionDev software engineering projects by Xander Steyn

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README

          


Xander Steyn




Portfolio

  

LinkedIn

  

LeetCode

  

Email

  

Personal Website

About Me

- [**About Me**](#about-me)
- [**Why This Repository Exists**](#why-exists)
- [**Tech Stack**](#tech-stack)
- [**Task Scores**](#task-scores)
- [**What Reviewers Say**](#what-reviewers-say)


About Me

I'm **Xander Steyn**, a software developer with **5+ years** of hands-on coding experience built on a strong foundation in **cybersecurity**.

For five years, I immersed myself in **ethical hacking**, focusing on exposing vulnerabilities in real-world systems, flaws most developers never even see.

In 2025, I made a decisive shift, moving fully into **building software**.
Now, I apply everything I learned about breaking systems to engineer software that is **secure**, **scalable**, and **built to last**.

> *I don't just write code that works.*
> I write code that **holds up**, because I know exactly what it looks like when it doesn't.


Why This Repository Exists

These projects are my official HyperionDev software engineering submissions, reviewed by mentors and shared with partner companies. Beyond assignments, this repository demonstrates what I consistently deliver independently and professionally.

> Every file here is written, tested, and submitted by me with the same level of attention I bring to real-world software projects.


Tech Stack

*Click each section below to expand*

Languages

 • Python
 • C++
 • SQL
 • JavaScript
 • HTML
 • CSS
 • PowerShell
 • Bash

Frameworks & Libraries

 **Web & App Development:**
  • Django
  • Flask
  • Bootstrap
  • Qt
  • Electron

 **Data & Automation:**
  • pandas
  • numpy
  • matplotlib
  • requests
  • beautifulsoup4
  • selenium
  • opencv
  • smtplib
  • scapy
  • pyautogui

 **Machine Learning & AI:**
  • scipy
  • scikit-learn
  • transformers.js

Databases

 **Relational:**
  • MySQL
  • SQLite
  • MariaDB

 **NoSQL:**

  • MongoDB

Tools & Platforms

 **DevOps & Deployment:**
  • Docker
  • GitHub Actions
  • AWS
  • Google Cloud Platform (GCP)
  • Heroku
  • Netlify
  • Nginx

 **Development & Testing:**
  • Git
  • GitHub
  • VS Code
  • Visual Studio
  • VirtualBox
  • Linux
  • Windows
  • REST APIs
  • unittest
  • Postman

Security

> While I've listed a few common tools here, my experience in cybersecurity goes far beyond checklists.
> These tools are just the surface; I adapt to each situation using a mix of scripting, manual testing, and layered techniques.

 **Core Skills:**
  • Penetration Testing
  • Vulnerability Assessment
  • Secure Coding
  • Reverse Engineering
  • Cryptography
  • Malware Analysis

 **Tools & Techniques:**
  • Nmap
  • Wireshark
  • Burp Suite
  • Metasploit
  • John the Ripper
  • Hydra
  • Aircrack-ng
  • OWASP ZAP
  • Hashcat
  • IDS


Task Scores


Task
Level
Score


Capstone Project ~ Variables and Control Structures
Level 1
100%


OOP ~ Synthesis
Level 1
100%


Capstone Project ~ Task Manager
Level 1
100%


Capstone Project ~ Databases
Level 2
100%


Django ~ Sticky Notes Application
Level 2
100%


Django ~ eCommerce Application
Level 2
100%


Capstone Project ~ News Application
Level 2
In Progress


Capstone Project ~ Consolidation
Level 3
In Progress


What Reviewers Say

- **[Capstone Project ~ Variables and Control Structures](https://github.com/XanderSteyn/HyperionDev.Finance-Calculator)**
> Your function names follow Python conventions clearly and descriptively.
> Using a helper function for input validation keeps the code DRY and maintainable.
> Try-except blocks handle errors well, and the output formatting is clean and readable. Excellent work.
>
> — Mentor, HyperionDev

- **[Capstone Project ~ Task Manager](https://github.com/XanderSteyn/HyperionDev.Task-Manager)**
> Excellent work demonstrating a strong understanding of the level's topics.
> The task manager is user-friendly, robust, and handles input validation well.
> Thoughtful use of third-party modules and proper dependency management included. Well done!
>
> — Mentor, HyperionDev

- **[Capstone Project ~ Databases](https://github.com/XanderSteyn/HyperionDev.Bookstore)**
> Great submission demonstrating effective CRUD operations and secure database handling.
> The use of prepared statements prevents SQL injection, and error handling is thorough.
> Clear comments and docstrings enhance the project's documentation. Well done!
>
> — Mentor, HyperionDev

- **[Django ~ eCommerce Application](https://github.com/XanderSteyn/HyperionDev.Ecommerce)**
> Excellent work showing a clear understanding of RESTful API design.
> Extra endpoints and access control were well implemented, and the API documentation makes usage straightforward.
> The Twitter / X integration adds great functionality and rounds off the project nicely.
>
> — Mentor, HyperionDev

- **Capstone Project ~ News Application**
> Review pending: work in progress.

- **Capstone Project ~ Consolidation**
> Review pending: work in progress.



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License

This repository is protected by a custom license. See the [LICENSE](LICENSE) file for details.

Unauthorized copying or submission of this work for academic purposes is prohibited.