01/25/2026 updated
100 % available
Full-Stack Developer | Next.js, NestJS, SaaS, Marketplaces & Web3
Marseille, France
Worldwide
Titre Professionnel DĂŠveloppeur WebAbout me
Full-Stack Developer (5+ years) building production-ready SaaS, marketplaces and Web3 platforms. Next.js/React/TypeScript, NestJS/Node.js, PostgreSQL/Prisma, Stripe and wallet integrations. End-to-end delivery: UX, APIs, data, payments, performance and deployment. Remote CET / EU travel.
Cascading Style Sheets (CSS)Software as a ServiceWeb DevelopmentGitHubNode.jsNext.jsSEO CopywritingSoftware EngineeringWeb Performance OptimizationThree.jsSQL OptimizationTailwindBackendSyntactically Awesome Style Sheets (SASS)Full Stack Development
Full-Stack JavaScript/TypeScript developer with 5+ years of experience delivering SaaS products, marketplaces, dashboards, business websites and Web3 platforms from architecture to production.
FRONTEND
⢠Next.js (SSR/SSG/ISR), React, TypeScript, JavaScript
⢠Tailwind CSS, shadcn/ui, SASS, responsive design and reusable design systems
⢠Framer Motion, Three.js/WebGL, premium interactions and 3D experiences
⢠Core Web Vitals, bundle splitting, caching/CDN, image/font optimization and SEO
BACKEND & DATA
⢠Node.js, NestJS, REST APIs, authentication, RBAC and business logic
⢠PostgreSQL, Prisma, MongoDB, MySQL and Firebase/Firestore
⢠Real-time messaging with Socket IO, webhooks and third-party integrations
⢠Admin back offices, dashboards, analytics and audit logs
PAYMENTS & WEB3
⢠Stripe Checkout, subscriptions, marketplace payments and webhooks
⢠Wallet connections, crypto payments, dApps and smart-contract frontend integration
⢠Token dashboards, transaction tracking, crowdfunding and marketplace flows
⢠Ethereum/Base, wagmi, viem, RainbowKit, WalletConnect and MetaMask
DELIVERY
⢠Git/GitHub, Docker, Vercel, environment management and production monitoring
⢠Multilingual products, automated localization and maintainable content architecture
⢠Sprint-based delivery: clear milestones, demos, documentation and clean handover
SELECTED PROJECTS
⢠EclipseX: verified European marketplace with bookings, messaging, payments, moderation and admin analytics
⢠CryptoFunders: Web3 fundraising platform on Base with hybrid payments, milestone flows, KYC/AML features and audit logs
⢠Maestro Computer Group: multilingual multi-platform digital ecosystem
⢠TrueSwapMarket and Immolityx: Web3 marketplace architecture and real-estate SaaS dashboard
TYPICAL MISSIONS
⢠New SaaS, marketplace or Web3 product builds
⢠Full-stack feature delivery: auth, dashboards, billing, APIs and real-time features
⢠Next.js migrations, refactors and rescue projects
⢠Performance, SEO, Core Web Vitals and production hardening
Experience
Professional experience5 - 10 years
Freelancer since2020
Languages
EnglishGoodFrenchNative speaker
Project history
Designed and delivered the corporate website for Maestro Computer Corporation, including a multi-language experience and a clear platform showcase. The site presents the groupâs strategic pillars (Web3, tokenized real estate, AI) and dedicated platform sections, with strong CTA flow and partner onboarding.
Built a structured navigation and content architecture (home, group/domains, platforms, innovation, governance, legal)
Implemented multilingual UX (language selector and localized content structure)
Integrated conversion CTAs and scheduling workflow (Calendly booking + contact entry points)
Implemented responsive UI, accessibility-minded layout, and performance-focused front-end delivery
Set up SEO foundations (page structure, metadata consistency) and production readiness checks
Ensured maintainable content updates and clean handover (documentation + release checklist)
https://maestrocomputergroup.com/fr
I work as a freelance Full-Stack developer specialised in Next.js/React/TypeScript and Node.js, delivering production-ready web applications end-to-end.
⢠Build and ship Next.js applications (SSR/SSG/ISR), clean routing/data fetching, scalable React/TS architecture
⢠Performance & SEO optimisation: Core Web Vitals, bundle splitting, lazy loading, image/font optimisation, caching strategy
⢠UI implementation with high design accuracy + micro-interactions (Framer Motion)
⢠Back-end delivery with Node.js: REST APIs, auth flows, integrations and business logic
⢠Payments & integrations: Stripe Checkout/subscriptions/webhooks (test â production)
⢠Databases: MongoDB and SQL (MySQL) â data modelling, queries, CRUD workflows
⢠Deployment and release readiness (Vercel, env management), documentation + clean handover
⢠Sprint-based delivery (milestones, demos), collaboration via Git/PRs/tickets
Delivered a fast, mobile-first website for the restaurant âIl Diavolettoâ, focused on discoverability and conversions (calls/reservations). The website includes structured sections for the menu (âLa carteâ), contact, booking CTAs, and local discovery essentials.
Built a clear information architecture: Home, Menu sections, Contact, Legal pages
Implemented high-conversion CTAs (Call / Reserve table) and contact details prominently
Integrated location discovery (Google Maps itinerary link) and practical information (hours, takeaway)
Implemented responsive UI, performance-first assets and clean UX for mobile users
Added SEO basics for local search (structured content, consistent titles/sections)
Provided quick iteration cycle and maintainable content updates
https://diavoletto.fr/