Freelancer profile translated to English.
Back to original languageAbout Rabie
Fullstack Web Developer - Next.js, Supabase, Stripe - Developer of SaaS, MVP & Automations
Passionate about creating high-performing and intuitive web platforms, I design tailor-made applications by combining modern tools like Supabase, Next.js, Stripe, and low-code/no-code solutions.
Specializing in the development of SaaS, MVP, and workflow automation (payments, notifications, back-office...).
My key Fullstack skills:
- 🎨 **Front-End**: **Next.js**, React.js, **Tailwind CSS**, **ShadcnUI**, MaterialUI
- 🗄️Back-End/ DB: **Supabase**, **Node.js**, **PostgreSQL**, MySQL
- **🚢 Deployment**: Docker, Vercel, VPS hosting, CI/CD, monitoring, security (SSL, GDPR)
- AI/Low-code Tools: N8N, Make, Airtable (workflows, automations)
Services offered:
- Building and integrating moderndatabases(like Supabase): authentication, roles, permissions, storage, conditional queries
- Support forproduction deployment(hosting, security)
Why collaborate together?
- Proactivity, autonomy, and rigor
- Smooth communication & solution-oriented approach
đź“© Need a FullStack developer? Contact me today!
French
Native or bilingual
English
Native or bilingual
Arabic
Native or bilingual
Can work on-site
Paris (up to 50km), Nice (up to 50km), Marseille (up to 50km), Lyon (up to 50km), Strasbourg (up to 50km)
Experience
- FavikonFullstack & AI EngineerSOFTWARE PUBLISHINGAugust 2025 - December 2025 (4 months)Paris, France
Fullstack & AI Developer - B2B SaaS
As a **fullstack developer**, I designed, developed, and deployed critical features combining web development, generative AI, and scalable architecture, used daily by thousands of users.🔧 Main missions:- Design and deployment of anadvanced conversational agent(FavAI) in production, based onLangChainand **LangGraph**, integrating **RAG**, web search, and **tool orchestration**, within an AI SaaS automation logic.
- Implementation of a large-scalesemantic searchinfrastructure, with a vector database of over 10 million vectors, for intelligent creator discovery.
- Fullstack JavaScript / TypeScript development of the product: Node.js backend, REST APIs, LLM integration and optimization, within a robust SaaS fullstack architecture.
- Implementation of AI observability withLangSmithfor monitoring, cost analysis, response quality, and production performance optimization.
- Close collaboration between **frontend and backend**, with a frontend and backend developer approach, oriented towards business impact and user experience.
🛠️ Stack & Key Skills:**Fullstack Development / Web Development**: TypeScript, Fullstack JavaScript, Node.js, REST API, scalable backend**AI & Automation**: LangChain, LangGraph, RAG, LLM, AI automation, agent orchestration**Fullstack SaaS**: Product architecture, scaling, security, observability**Web & APIs**: REST API Developer, third-party service integration, backend performance**Monitoring & Quality**: LangSmith, AI optimization, production monitoring - WazperCo-Founder & CTO - FullStack Development | Growth | ProductSOFTWARE PUBLISHINGDecember 2024 - Today (1 year and 6 months)Paris, FranceAt **Wazper**, we identified a recurring problem: users of SaaS products rarely add their teammates during signup. This lack of invitations severely harms activation, retention, and acquisition ROI.So, we created a simple tool: a line of code to add to the onboarding, which automatically suggests teammates to invite. With one click, the user forms a complete team, boosting conversion, stickiness, and expansion.🔧 Main Responsibilities:*Design and development of the MVPin Next.js, TypeScript, React.js, and TailwindCSS, with a strong focus on performance and developer experience (DX).*Implementation of a secure REST APIin Node.js.
- Integration of a credit system based on **Stripe**, to charge only for successful team invitations.
- Development of anembeddable widget(one-liner JS) easily deployable for our SaaS clients.
- Design of an intelligent teammate matching system.
- Implementation of secure **authentication**, token management, and API security practices.
- Supervision of theCI/CDinfrastructure via GitHub Actions, automated tests, and regular code reviews.
- Collaboration with B2B SaaS founders to align the product with onboarding and growth use cases.
- Participation in go-to-market strategy, early user acquisition, feedback loop, and rapid product iterations.
🛠️ Stack & Keywords:Next.js, React.js, TypeScript, TailwindCSS,Node.js, REST API, Prisma, PostgreSQL, Supabase,Stripe API, Stripe Billing, FullStack Development,MVP Architecture, CI/CD, GitHub, API Security,Embeddable widget, SaaS Growth, B2B Product,Authentication, Security Audit, SaaS, Software as a Service,API Platform, Conversion, Product Activation, B2B Expansion. - PhotitFullstack DeveloperSOFTWARE PUBLISHINGMay 2024 - October 2024 (5 months)Paris, France
Fullstack Developer - B2B SaaS
As aFullstack developeron the Photit.io project, a SaaS platform for communication agencies allowing event guests to share their photos via QR code, I designed and deployed a robust MVP focused on user experience and performance.🔧 Main missions:*Web and mobile developmentin Next.js, React.js, TypeScript, and TailwindCSS.- Design and implementation of a scalableMVP architecture**, with a clear separation between **FrontEnd(React/Next.js) andBackEnd(NodeJS + REST API).
*Full integration of Stripe(Stripe API, Stripe Connect, Stripe Billing) for managing B2B payments and subscriptions.- Implementation ofsecure authentication(email, password, magic link).
- Automation of continuous deployment via aCI/CDpipeline (GitHub Actions).
- **Code audit**, regular reviews, and strengthening of API security with modern web security practices (validation, injection protection, etc.).
🛠️ Stack & Key Skills:Nextjs, Reactjs, TypeScript, TailwindCSS, NodeJS,PostgreSQL, Prisma, Supabase, Stripe API,CI/CD, REST API, Figma, GitHub,FullStack Development, MVP Architecture,Authentication, Security Audit, SaaS Development.
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Education
- Master in FinanceSKEMA Business School2025Master in Finance
- Prépa ECSLycée Saint Louis2022Prépa ECS
Certifications
- Fullstack Web Development MasterclassOnline2025
- The Complete FullStack Web Development BootcampOnline2025