About Steven
Fullstack & Mobile Developer | React.js · Next.js · React Native · Node.js
🎯 What I offer
🛠️ Stack & Tools
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French
Native or bilingual
English
Fluent
Chinese
Conversational
Experience
- TestisiaFullstack Developer (Next.js | NestJS | Stripe)January 2026 - February 2026 (1 month)As aFullstack Developeron Testisia, I designed and developed aSaaS platformenabling merchants to collect Google reviews through a "fortune wheel" gamification system, accessible via QR code.**The concept**: The merchant creates a campaign, configures prizes, and generates a QR code. The customer scans it, plays the wheel, wins a prize, and is then redirected to Google My Business to leave a review.**My Missions**:Merchant Area:
- Full authentication, campaign management with prize configuration (name, image, quantity, probabilities), automatic QR code generation, and interface customization (logo, colors).
- Real-time analytics dashboard: scans, games played, reviews collected, conversion rates, charts, and CSV export.
Player Interface (Mobile-First):- Animated fortune wheel with probabilistic results and responsive design.
- Multi-language (FR/EN/ES), merchant customization (colors, logo).
- Post-game flow: GDPR form, automatic prize code sending, Google My Business redirection.
Integrations:- Stripe Billing: subscriptions, auto-renewals, webhooks, invoices.
- SMS/WhatsApp/Email campaigns via Twilio and Resend.
- Unique, non-reusable prize codes with usage tracking.
Admin Back-Office:- Global dashboard: MRR revenue, new sign-ups, merchant account management.
**Security**: encrypted passwords, JWT, HTTPS, GDPR compliance.Technical StackNext.js, NestJS, TypeScript, PostgreSQL, Prisma, TailwindCSS, Stripe, Twilio, Resend, Vercel**Key Results**:- Complete platform delivered in 3 weeks (auth, campaigns, wheel, dashboard, payments, marketing).
- Smooth gamified flow from QR scan to Google review — maximizing conversion rate.
- Fully automated subscription and billing system via Stripe.
- TIERZETAMobile Developer (React Native | AI)PUBLIC SECTORNovember 2025 - November 2025As aMobile Developeron TierZeta, I designed and developed a mobile application allowing citizens to vote on French laws and understand legislative texts through **artificial intelligence**.**The concept**: Make laws accessible to everyone through AI summaries and encourage citizen participation with an intuitive voting interface.**My missions**:Mobile Development:
- Complete React Native application with a fluid voting interface and a feed of laws under review.
- Clean and accessible design, smooth animations for voting interactions.
- Sharing of results and real-time community results.
AI Integration:- Automatic summaries of legislative texts via OpenAI API.
- Simplification of legal language for the general public.
- Conversational chatbot to explain the context and implications of each law.
**Architecture**:- Performant REST API (NestJS, PostgreSQL, Prisma) for legislative data.
- Cache system for optimal loading times.
**Results**:- Functional application delivered in 2 weeks.
- Complex legislative texts made accessible through AI summaries.
- Engaging voting interface with immediate visual feedback.
- MERITAIFullstack Developer (Next.js | AI)EDUCATION AND E-LEARNINGNovember 2025 - December 2025 (1 month)As aFullstack Developeron MeritAI, I designed and developed an AI-powered revisionSaaS platformfor students.**The concept**: Automatically generate personalized educational content (text, audio, PDF, Word) via OpenAI and Claude, with a complete learning journey.**My missions**:Frontend Development:
- Design of 22 pages with progress dashboard, training sessions, and fluid navigation (Next.js 14 App Router, TypeScript, TailwindCSS, Shadcn/UI).
- Development of 31 custom React hooks for a maintainable architecture.
Backend Development:- Architecture of 38 REST API routes with NestJS and Prisma (PostgreSQL).
- Integration of OpenAI and Claude APIs for educational content generation.
- 8 AI writing modules (rewriting, summarizing, explaining…).
- Automatic generation of PDF and Word documents.
Results:- Platform delivered at 87% in 3 weeks of development.
- 22 pages, 38 API routes, 31 hooks — scalable architecture.
- Fully automated multi-format generation by AI.
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Education
- Software Engineering ExpertEpitechCursus BAC +5 - Pédagogie par projet - Gestion de projet & projets de groupe - Méthode agile & TDD - Langages: - C - C++ - Python - Docker - Javascript - Node js - TypeScript - React - React Native - Jenkins - Postgres - Git
- Bachelor in Information Technology (Bac +3)Epitech2024Développement C - Développement C++ - Développement JS (React, Next, Node) et Typescript - Développement Python - Développement PHP
Certifications
- Bachelor in Information Technology (Bac +3)Epitech2024