Freelancer profile translated to English.
Back to original languageAbout Alexandre
Double expertise: Web Development & Cybersecurity
High-performance websites, secure architectures "by design"
Specialist in React, Next.js, Angular, Python, Three.js
Trusted technical partner to protect and grow your business
WHY HIRE ME?
I don't just code, I secure your business. I help my clients to:
Peace of mind: Robust web applications against current threats (OWASP, logical flaws).
Performance: Fluid interfaces (React/Next.js) and a solid back-end (Django/Python).
Secure innovation: Integration of AI (LLM) and complex APIs without compromising your data.
MY SERVICES
💻 FULL-STACK WEB DEVELOPMENT
- Creation of custom websites and platforms (React, Next.js, Vue.js)
- Back-end development and complex architectures (Django, MySQL, REST API)
- SEO optimization and responsive design (Mobile First)
🕵🏻♂️ CYBERSECURITY & AUDIT
- Security audit of your web applications and infrastructures
- Penetration testing (Pentest) & Vulnerability analysis
- AI security consulting (LLM Security, Prompt Injection defense)
⚙️ MAINTENANCE & DEPLOYMENT
- Implementation of secure administrator interfaces
- Cloud deployment and database management
Projects & Collaborations: RedSentinel (Audit & Pentest), Campus Cyber Nouvelle-Aquitaine, ECE Cup (Web Platform), Antoine COURCAUD (Freelance Website), and various large-scale academic projects.
WHO AM I?
👨🏻💻 Alexandre Tavares | Full-Stack Developer & Security Auditor
With an engineering background from ECE (Cybersecurity Major) and experience at RedSentinel, I combine the creativity of web development with the rigor of IT security.
I create CTF (Capture The Flag) challenges: I know the attackers' methods, which allows me to better defend your projects.
Need a website that can withstand attacks?
💬 Contact me for a quote!
French
Native or bilingual
English
Native or bilingual
Remote only
Primarily works remotely
Experience
- RedSentinelCyber Security ConsultantTECHOctober 2025 - Today (10 months)Bordeaux, FranceRedSentinel assists companies in securing their systems and data through comprehensive and actionable cybersecurity audits. We identify critical vulnerabilities, assess risks, and provide concrete recommendations to protect your business and strengthen your security.Specialties: infrastructure audits, web applications and APIs, prioritized remediation plan, clear reporting for management and technical teams.Our promise: precise, pragmatic, and results-oriented audits, enabling you to anticipate threats and secure your data today.
- ECE. Ecole d'ingénieurs. Engineering School.Full Stack DeveloperJanuary 2025 - February 2025 (1 month)Bordeaux, FranceMain missions:• Development of the Django/MySQL architecture for registration management• Integration of secure payment system (Stripe API)• Automation of communications (confirmation emails, reminders, notifications)• Administrator dashboard for real-time registration tracking• Responsive interface for optimal user experience• Development of a visual interface to display scores and timers during competition matches (node.js + vue.js)
- CTFFull-Stack & DesignerOctober 2024 - January 2025 (3 months)Bordeaux, FranceCo-creation and development of the Inside ECE platform, a complete Capture The Flag infrastructure dedicated to high school and post-baccalaureate students.Main missions:• Full-stack development of the main CTF platform by adapting the CTFd source code• Full-stack development of the other platform hosting the CTF web challenges (Django, MySQL)• Design and hosting of 15+ cybersecurity challenges (Web, Crypto, Reverse)• Architecture and deployment of the secure hosting infrastructure• Educational support for beginner participants
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Education
- Python Programming for Excel Users Final Exam - Data AnalysisTechAway niv2 (FR)Python Programming for Excel Users Examen Final - Data Analysis
- Quiz Excel to Python - Data AnalysisTechAway niv2 (FR)QCM Excel vers Python - Data Analysis