Nexza

Network Engineer · Developer · Cyber Security

Self-taught engineer building open-source tooling for networks, the web and security testing.

Self-taught engineer based in Greece, working at the intersection of networking, software development and security. I build open source tools with a focus on defensive auditing and practical automation, taking the time to understand systems at protocol and implementation level before shipping.

My core work is Nmap NSE scripts in Lua for network service auditing, complemented by web development with Next.js and React, Discord platform automation, and game scripting. Everything I publish is designed to be safe on production infrastructure, clearly documented, and straightforward to integrate into existing workflows.

I learn by reading the documentation, building a minimal implementation, and stress testing it myself. That loop has shaped most of what is on this profile.

• Location: Greece
• Role: Network Engineer / Developer / Cyber Security
• Focus: Network security auditing, NSE script engineering, Discord automation, web development
• Currently: Hardening Nmap-NSE-Script-Collection
• Portfolio: nexza.dev

Custom Nmap NSE scripts in Lua for defensive security auditing. Each script targets a specific real world misconfiguration across services such as HTTP, DNS, SMB, SSL/TLS, FTP and databases, and reports findings in a clear, actionable format. Built to run standalone or as part of larger infrastructure scans.

• Cybersecurity: Defensive, non destructive auditing informed by an attacker perspective. Identify weaknesses, document them precisely, and leave systems safer than found.
• Network Security: Nmap and NSE coverage for common services, surfacing issues such as open resolvers, weak ciphers and unauthenticated access. Every check is written for reliable use against live environments.
• Discord Automation: Production grade bots for moderation, role hierarchies, XP and leveling systems, and community workflows. Built for stability under real load, not just demos.
• Web Development: End to end web products with Next.js, React and Node.js, with focus on performance, type safety and clean architecture. Portfolio and related projects are statically exported and deployed on Cloudflare.
• Game Scripting: Gameplay logic and server side mechanics on Roblox and similar platforms, used as a disciplined environment for structured and secure code.

Grouped by where I use each one.

Technology	Use
Lua	NSE script development, protocol parsing and structured detection logic
Python	Tooling, data parsing and automation
JavaScript	Discord bots, command handling and event driven automation
TypeScript	Typed backend and bot logic for larger codebases
HTML	Web interfaces
CSS	Web interfaces
Bash	Automation, CI and scanning pipelines
MySQL	Persistence for bots and tools including configs, user data and logs

Technology	Use
React	Frontend UI for web projects
Next.js	Portfolio and web builds, static export on Cloudflare
Node.js	Backend logic for bots and web services
MongoDB	Data storage for web and bot projects
GraphQL	API querying for web projects

Technology	Use
Linux	Primary environment for development and security auditing
Git	Version control across all projects
VS Code	Primary editor
Figma	UI design and prototyping

Fully self-taught. My workflow is hands on: study the docs, ship a working implementation, test it against real conditions, and refine from there. The platforms below have been central to that process.

• HackTheBox: Labs and machines for practical security
• freeCodeCamp: Core curriculum for web development and programming
• roadmap.sh: Structured paths for development and security topics
• DataCode: Computer science community with tutorials and practice sets
• W3Schools: Quick reference for web technologies
• LeetCode: Algorithms and data structures
• DevDocs: Searchable API documentation
• Discord Developer Docs: Official docs for Discord apps and bots
• discord-api-docs: Open source repository behind the Discord API docs

Open to collaboration on security tooling, NSE scripts and web and Discord automation. For contributions, bug reports or technical discussion, reach out via any of the channels above.