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Joupow/README.md

Hello, I'm Julien

Systems & Network Administrator · Career Transition · Security Focus

📍 Lyon, France · Open to apprenticeship and entry-level opportunities

Former copywriter turned 3D animator, I am now transitioning into systems and network administration, with a growing focus on cybersecurity. I'm building my path as a self-taught learner, levelling up my skills one layer at a time (OSI included).

My approach to learning is simple:

build → break → troubleshoot → document.

🔧 What I Build

An enterprise-style network homelab built with Packet Tracer, structured into six progressive modules: 3-tier LAN · HSRP/OSPF redundancy · DMZ & ASA firewall · spine-leaf datacenter · VoIP · Wi-Fi

Every feature is validated through actual state evidence : ACL counters, routing tables, logs and other operational data, rather than screenshots that merely show that something appears to be set up.

🔜 Windows Active Directory Lab (in progress)

Building and managing a Windows domain environment under Hyper-V, covering domain deployment, replication, Group Policy (GPO) and Windows administration.

🧩Tools & Accelerators

The Prompt turns an AI conversation into a prompt-driven educational game system, designed to transform learning Python, PowerShell, and Linux into an interactive adventure.

  • Decoupled Architecture: State management is fully decoupled from the LLM core using a lightweight, local SAVE.json state machine, ensuring persistence across LLM context windows.

  • Zero-Lock-in Portability: Designed with a "Bring Your Own AI" model, allowing seamless session context migration between Claude, ChatGPT, and Gemini without losing progress.

  • CLI & Gamified Engine: Implements a modular command interface (GO, DEBUG, STATS) to evaluate logic, track multi-axis skill progression, and simulate real-world troubleshooting scenarios.

📜 Certifications & path completed

  • 📚 Studying for CompTIA Security+

🧭 How I Work

  • Debugging is where I really learn. Routing loops and Router-ID conflicts are not fully understood by reading about them in a course, they are understood by diagnosing and fixing them.

  • I prove systems through state, not screenshots. A service is not "working" simply because the interface says so. I want to be able to verify it through counters, tables, logs or other measurable evidence.

  • I treat documentation as a deliverable, not an afterthought. My background in copywriting and 3D animation is useful here: clear structure, precise communication, and diagrams whenever they genuinely make a concept easier to understand.

📫 Get in Touch

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