Freelancer profile translated to English.
Back to original languageAbout Jean Daniel
🏆 38 years of IT expertise — From code to infrastructure, I solve your technical problems.
Developer since I was 16, I have supported SMEs through all technological evolutions. Today, I put this experience to work for your projects.
🔧 What I do concretely:
→ Mail servers ending up in spam?
Complete configuration: iRedMail, Postfix, SPF/DKIM/DMARC. Results within 48 hours.
→ Unstable or aging infrastructure?
Audit, security, migration. Without breaking the existing system.
→ Need a custom business application?
React, Node.js, Python — from specifications to production.
→ Legacy system that no one dares to touch?
AS400, COBOL, complex migrations — it's been my specialty for 30 years.
🌴 Based in Reunion Island (UTC+4):
- Available when mainland France is asleep
- Emergency interventions possible
- 100% remote, 100% responsive
👨💼 +20 years supporting SMEs: infrastructure, hosting, development, support.
📞 First 30-min call offered to assess your needs.
French
Native or bilingual
English
Conversational
Remote only
Primarily works remotely
Experience
- RUNXPERTIT Expert 38 years XP | Legacy to Cloud | 24/7 Support from Reunion IslandTECHJanuary 1987 - Today (39 years and 6 months)Saint-Denis, RéunionDeveloper since I was 16, I have gone through all IT revolutions. I transform your legacy systems into modern solutions. Available in a different time zone for mainland France support.
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Education
- Self-Taught IT ExpertAutonomous Continuous Training198738 ans d'apprentissage continu, veille technologique permanente, certifications en ligne (MOOCs)