Freelancer profile translated to English.
Back to original languageAbout Sylvio
Fullstack developer (Symfony, Node.js, React, Nuxt.js) and freelance cloud engineer, I help SMEs, startups, and agencies build their web applications, business software, and AI agents, from backend architecture to production deployment.
A reliable business tool, a backoffice, an API, processes to automate: that's what I deliver daily.
AI INTEGRATION & AUTOMATION
I designed and deployed a voice AI agent that takes phone orders for a pizzeria, currently in production: conversational architecture, LLM optimization, management dashboard, complete cloud infrastructure. I also developed a revenue forecasting module (weather, events, payroll cycles) and regularly automate data flows, scripts, and scheduled tasks.
WEB APPLICATIONS & BUSINESS SOFTWARE
Symfony or Node.js backend, REST API, administration backoffices (EasyAdmin, custom dashboards), React, Nuxt.js, Next.js or Vue.js frontend depending on the project. I also take over legacy PHP applications to evolve them without a brutal overhaul.
CLOUD & INFRASTRUCTURE
Architecture, deployment, and management: Docker, CI/CD, Scaleway, Cloudflare. Environment management (test, pre-prod, prod), backups, monitoring, Linux server security.
WHAT YOU CAN EXPECT FROM ME
My clients stay: annual maintenance contracts renewed, software still in production years after delivery. I work 100% remotely, I respond quickly (within 1 hour during the day), and I deliver documented and maintainable code. A single point of contact, from the specifications to maintenance.
Have a project or an automation need? Write to me.
French
Native or bilingual
English
Fluent
Remote only
Primarily works remotely
Experience
- Client revendeur de POSAI Revenue Forecasting Module & Kiosk SoftwareRESTAURANTS AND FOOD SERVICENovember 2025 - January 2026 (2 months)Saint-Pierre, RéunionTook over a legacy PHP dashboard to integrate two components: interactive order kiosk software and a revenue forecasting module.The module cross-references external factors (weather, local events, payroll periods, school holidays) to help the manager anticipate business activity and adjust staffing. All integrated into the existing system, without a complete overhaul: new features, legacy code respected, zero service interruption.
- Client restaurationDesign of a Voice AI Order-Taking AgentRESTAURANTS AND FOOD SERVICENovember 2025 - Today (7 months)Saint-Pierre, RéunionI designed and deployed an AI agent that takes phone orders for a pizzeria, currently in production.The project covered the entire chain: conversational architecture of the agent, system prompt optimization (60% fewer tokens, latency and costs reduced accordingly), benchmarking LLM models on the cost/latency/quality trifecta, development of the order management dashboard in Nuxt.js, and setting up the infrastructure from scratch (VPS, database, deployment, monitoring).The restaurateur no longer answers the phone during busy hours: the agent takes the order, and the dashboard displays it.
- Professeure indépendanteCourse Booking Platform with BackofficeEDUCATION AND E-LEARNINGOctober 2025 - November 2025 (1 month)Development of an appointment booking website for an independent teacher looking to save time: slot booking for students, and a complete management backoffice (rooms, slots, students, schedule).Developed in Nuxt.js and hosted on Cloudflare. The site is live and used daily.
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Education
- Professional Bachelor's Degree in Software EngineeringIUT de Metz, University of Lorraine2022Licence Professionnelle Génie Logiciel
- University Diploma in Technology (DUT)IUT de Metz, University of Lorraine2021DUT
Certifications
- Test of English for International Communication (TOEIC)Iut de Metz2022