About David
Fullstack Developer | React.js | Next.js | Stripe
- **Concrete gains**: platform in production in less than 3 months, reduction in payment errors, user experience validated by early adopters.
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Experience
- initative demain
On Malt
Fullstack Developer | React.js | Next.js | StripeCIVIC AND SOCIAL ORGANIZATIONSJune 2026 - Today (1 month)Toulouse, France**CONTEXT**:Taking over, securing, and industrializing a web marketplace for events and ticketing for the associative sector (associations, local authorities, artisans), in preparation for its launch. React/Vite + Supabase + Stripe Connect application initially built in no-code, requiring stabilization and production deployment.**ACHIEVEMENT**:Full project delivery in batches, from audit to production deployment:- Technical audit across 7 pillars + business aspects: critical flaw identified, side effects of a past fix verified (~30 points), triple payment defense validated.
- Migration from managed infrastructure to proprietary infrastructure: Postgres (84 migrations, 35 tables, RLS, triggers, ~40 RPCs, pgmq/pg_cron/vault), 22 Deno Edge Functions, Google OAuth, Resend emails, Storage, Vercel hosting + domain + SSL.
- Server security hardening (RLS, Realtime channels, CORS) and compliance (legal notices, cookies, GDPR).
- Financial stabilization (unified pricing, Stripe fees passed on, variable commission) and Stripe Connect safeguards (delayed payout J+7, refunds/cancellations).
- Stripe production deployment (TEST to LIVE), acquisition (dynamic OG tags, social sharing, PWA).
**RESULTS**:- Application 100% migrated to proprietary infrastructure (Vercel + Supabase), zero no-code dependency, in production.
- Secured backend: 35 tables, RLS, triggers, RPC SECURITY DEFINER, 22 Edge Functions.
- Stripe Connect multi-party payment audited and stabilized.
- Project structured in batches, delivered iteratively with compliance guarantee.
**TECHNICAL STACK**:React, Vite, TypeScript, Tailwind, Supabase (PostgreSQL, RLS, Deno Edge Functions, Storage, Realtime, pgmq, pg_cron, Vault), Stripe Connect, Resend, Leaflet, Vercel. - factudevisFullstack Developer | React.js | Next.js | StripeSOFTWARE PUBLISHINGApril 2026 - April 2026Montpellier, France**CONTEXT**:Design and development of aninvoicing SaaSfor French **micro-entrepreneurs**, compliant with 2027 fiscal obligations.**ACHIEVEMENT**:End-to-end development of a complete application in a **Next.js monorepo**:*Stripeintegrated: subscriptions (Free/Pro), **Checkout, customer portal, webhooks**, and payment management.
- Generation of compliantPDF quotes and invoiceswithFactur-X(e-invoicing standard EN 16931).
- Secureelectronic signature(unique token, SHA hash, signer IP).
*Recurring invoices(monthly/quarterly), quote-to-invoice conversion.*Statisticsdashboard, purchase register,URSSAFdeclaration, threshold simulators.- **Push notifications**, global search, rate limiting (Upstash Redis).
**RESULTS**:- **Complete SaaS in production**, deployed on Vercel.
- **40+ Server Actions**, 9 Prisma models, full fiscal compliance.
- Monetization operational viaStripe(Free/Pro).
*Scalableandsecurearchitecture (NextAuth, rate limiting, HSTS).**TECHNICAL STACK**:Next.js 16(App Router),React19, TypeScript,Prisma, MongoDB, Stripe(Checkout, Webhooks, Portal), **Resend, TailwindCSS, shadcn/ui**, Vercel, Upstash Redis. - GardenStayFullstack Developer | React.js | Next.js | StripeE-COMMERCEFebruary 2026 - March 2026 (1 month)Montpellier, France**CONTEXT**:Marketplaceplatform connecting garden owners with individuals wishing to rent exceptional outdoor spaces for private events.**ACHIEVEMENT**:End-to-end design and development of a complete marketplace:*Multi-party payment systemvia **Stripe Connect**: dynamic platform commissions, automatic payouts to hosts, and automated **refunds**.*Time-slot booking systemwith availability calendar, 3-tier cancellation policy, and **iCal synchronization**.
- Real-timeinternal messaging**, **two-way reviewsystem, and comprehensiveadmin dashboardwith KPIs.
**RESULTS**:- Platform delivered and deployed inproduction(Vercel + Render).
- **9 functional modules**: auth, listings, booking, payment, messaging, reviews, admin, iCal, accounting.
- Admin dashboard with user, listing, and booking management, and real-time **KPIs**.
**TECHNICAL STACK**:Next.js(App Router),React.js, Express.js**/TypeScript, **Stripe(Connect, Webhooks),PostgreSQLvia Prisma ORM, Supabase, Vercel, Render.
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Education
- RNCP Level 6 TitleLa Capsule2024Développeur d'application web et mobile