Sébastien Sigüenza, Web Developer

Freelancer profile translated to English.

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Description

✨ Freelance Web Developer | React • JavaScript • HTML/CSS • Supabase • Modern Websites & Applications

💻 I design and develop high-performance, responsive websites tailored to your needs.

👉 Whether you're a startup, an SME, or a freelancer, I'll guide you from conception to launch.

✅ Key Skills:

Front-End Development (React, HTML, CSS, JavaScript)

Creation of responsive and SEO-optimized websites

Database connection and management (Supabase, Firebase, SQL)

API integration and custom web solutions

Performance and user experience optimization

🎯 My goal: to deliver a modern, clear, and effective website that enhances your business and attracts your customers.

Industry field of expertise

Languages

French
Native or bilingual
English
Conversational

Workplace preferences

Remote only

Primarily works remotely

Crédit Agricole
Webmaster Analyst / Project Manager
BANKING AND INSURANCE
October 2019 - Today (6 years and 10 months)
Toulouse, France
Digital project management, web integration and development, technical implementation of digital communications.
Project Management Web Integration Web Development Digital Communication
GALAXY SOFTWARE
Development Engineer
DIGITAL AND IT
September 2018 - October 2019 (1 year and 1 month)
Reims, France
IT services company, on assignment for Crédit Agricole de Nord Est. Design, development, and maintenance of internal tools for employees.
Web Development Database Management
QUADRA INFORMATIQUE
Programmer Analyst
DIGITAL AND IT
January 2016 - September 2018 (2 years and 8 months)
51100 Reims, France
IT services company, on assignment for Arcelor Mittal. Maintenance of an ERP system to implement necessary updates and fixes.
ERP Informix IT Maintenance

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MTC License
IAE (Institute of Business Administration).
2009
Licence MTC
BTS IG
2005
BTS IG

Check out Sébastien's education