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Ziyad BelaidiZB

Ziyad Belaidi

Systems, Networks, and Cybersecurity Developer

€125/day
Toulouse, FR
0-2 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Ziyad

Systems and networks developer with a focus on cybersecurity. I am involved in designing robust architectures, deploying dynamic web solutions, and securing IT environments. I assist my clients with high-stakes technical projects: setting up network infrastructures (pfSense, Zabbix, VLAN), developing web applications with real-time alerts (Flask, MQTT, PostgreSQL), and participating in security audits.

My added value: a versatile approach combining development, networking, and cybersecurity, validated by concrete results in CTFs, bug bounties, and coding battles.

I handle projects including:
– Full stack web development (HTML/CSS/JS, PHP, Flask)
– Network infrastructure and monitoring
– MQTT integration for IoT or alert systems
– Application security and code auditing
– Technical support for Linux environments

Available for targeted missions or complete projects, with clear reporting and documented deliverables.
  • French

    Native or bilingual

  • English

    Conversational

  • Spanish

    Basic

Remote only
Primarily works remotely

Experience

  • Mondoclowns
    Development of a dynamic website
    September 2022 - January 2023 (4 months)
    Creation of a website with an administrator interface, user management, and database. Technologies used: HTML, CSS, JavaScript, PHP, MySQL. Simplified MVC architecture, access security, server-client interaction via dynamic forms.
    JavaScript Database Creation Database Management MySQL PHP
  • ESIEA
    Design of a secure network infrastructure
    October 2024 - January 2025 (3 months)
    Implementation of a public/private network with pfSense firewall, monitoring via Zabbix, and centralized logging with Syslog-ng. VLAN configuration, routing, resource monitoring, and alerting. Simulation of a business environment.
    Zabbix pfsense Linux Syslog Firewall
  • LIS Distribution
    Flask Application – Real-time Alert System
    March 2025 - June 2025 (4 months)
    Development of a Flask web application interfaced with an MQTT broker (Mosquitto). Event detection via sensors or physical buttons. Upon activation (camera detected or button pressed), automatic alert sent to the web interface. Python backend, PostgreSQL database, real-time communication with connected clients.
    Python Python Flask PostgreSQL Mosquitto IoT

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Education

  • Systems Administrator Bachelor
    2023
    Bachelor Administrateur systèmes
  • Network
    ESIEA Infrastructure
    réseau

Skill set

Categories