Freelancer profile translated to English.
Back to original languageAbout Gianni
Product-oriented Full Stack Developer specializing in the design of B2B web and mobile SaaS platforms.
I am involved in the entire development cycle:
- Technical architecture
- Web frontend (React / Next.js)
- Mobile applications (React Native)
- Node.js backend
- APIs & AI integration
- Infrastructure and deployment
I design and evolve platforms used in production in demanding business environments, particularly in the automotive and real estate sectors:
- Inventory management
- Ad posting
- Business CRM
- Marketing automation
- Media tools and immersive experiences
I also work on infrastructure and operations topics:
- Docker & service orchestration
- Environment deployment and management
- Performance optimization
- Scalable backend architecture
- Business workflows and services management
My goal is to build systems that are:
- Performant
- Scalable
- Maintainable
- Aligned with users' operational challenges
With a product-centric, user experience, and long-term vision approach.
⸻
📩 Available for B2B Web & Mobile missions, as technical support or full product ownership.
I can be involved in:
- Developing a new platform
- Evolving an existing product
- Structuring a project technically
- Backend & infrastructure architecture
- Integrating AI tools and business automations
Feel free to contact me to discuss your project.
French
Native or bilingual
English
Fluent
Italian
Conversational
Can work on-site
Paris (up to 10km), Rouen (up to 20km)
Experience
- WEESPOTSSenior Full Stack & Mobile Developer – B2B Automotive SaaS EcosystemAUTOMOBILENovember 2019 - April 2026 (6 years and 5 months)Paris, FranceDesign and development of a complete B2B SaaS ecosystem for automotive professionals, including a centralized web administration platform and the Weespots mobile application.The Weespots ecosystem centralizes all business needs related to vehicle management and distribution:
- Automotive inventory management
- Multi-source imports and partner gateways
- Automatic generation of marketing content
- Creation of 360° vehicle views
- Automated posting on social networks
- Creation of custom storefronts connected to client domains
- Automotive marketplace-type ad portal
- AI tools for image processing and segmentation
- Chat widget connected to LLM APIs
- Weespots mobile application dedicated to automotive professionals
The whole system is managed from a centralized administration platform allowing professionals to manage their commercial and marketing activities from a single interface.🎯 Main Responsibilities- Full Stack platform architecture
- Web and mobile frontend development
- Business API design
- Automation of media and marketing workflows
- Performance and scalability management
- AI and image processing integration
- Development of automotive distribution tools
- Implementation of multi-tenant / multi-client systems
- Development of the Weespots mobile application with React Native / Expo
- Design of a mobile experience tailored to the field usage of automotive professionals
🛠️ Technical Environment- React.js / Next.js
- React Native (Expo)
- Node.js / Express
- MongoDB
- Docker
- AI / LLM APIs
- Python (media & AI processing)
💡 Value Delivered- Complete centralization of automotive business tools
- Automation of numerous operational and marketing tasks
- Improved vehicle distribution and valuation
- Development of a scalable SaaS ecosystem focused on performance and productivity
- SPIDERVOMobile Developer – B2B Application for Automotive ProfessionalsAUTOMOBILEJanuary 2024 - April 2026 (2 years and 3 months)Paris, FranceDevelopment of a B2B mobile application for automotive professionals, designed to centralize commercial and operational management directly in the field.The SpiderVO application allows users to manage their business on the go with a business-optimized mobile interface:
- Real-time vehicle inventory management
- Creation and publication of automotive ads
- Photo taking directly from the application
- Lead and client tracking
- Reminders and notifications for important sales actions
- Synchronization with existing APIs and business tools
The application was designed with a strong focus on execution speed, ease of use, and reliability in field usage contexts.🎯 Main Responsibilities- Mobile application architecture and development
- Integration of backend business APIs
- Performance and user experience optimization
- Development of workflows related to ads and media
- Management of real-time features and notifications
- Evolutionary maintenance and continuous product improvement
🛠️ Technical Environment- React Native
- Expo / EAS
- REST APIs
- Push notifications
- Image capture and processing
- Business-oriented mobile architecture
💡 Value Delivered- Centralization of business operations on mobile
- Time savings in daily vehicle management
- Improved commercial responsiveness of users
- Application designed for intensive and field professional use
- Vitrinemedia
On Malt
Full Stack Developer – B2B Web Platform (Real Estate)REAL ESTATENovember 2020 - December 2023 (3 years)Nogent-sur-Marne, FranceDevelopment of a B2B Web Platform for real estate professionals, designed to manage listings, publish ads, and offer immersive experiences to buyers.Long-term project with challenges in stability, performance, and scalability.⸻🎯 Main Responsibilities• Design and development of a business management interface• Development of a robust backend API for data management• Implementation of advertising and property showcasing tools• Work on immersive and interactive features⸻🚀 Key Features• Complete management of real estate listings• Publication of personalized ads• Generation of 360° virtual tours• Administrator interfaces adapted for professional use⸻🛠️ Technical Environment• Frontend: React.js, React-Admin• Backend: Node.js, FeathersJS• Database: MongoDB• 3D / Virtual Tour: Three.js• Deployment: Docker⸻💡 Value Delivered• Stable and maintainable business platform• Immersive experiences to enhance property showcasing• Strong autonomy throughout the development cycle
Reviews
Jimmy
Développeur Web mobile - SPIDERVO
Reviewed on 7/13/2026
Gianni has supported us on numerous projects. Rigorous, responsive, and proactive, he quickly understands business challenges and proposes reliable, efficient, and adapted technical solutions. His autonomy and ability to drive projects forward make him a developer we can count on whenever a new need arises.
Jimmy
Développeur Web - SPIDERVO
Reviewed on 7/13/2026
Gianni supports us on many projects. Very committed, autonomous, and always available, he has become a trusted contact whom we do not hesitate to call upon whenever a need arises.
Recommendations
EC
FU
+2
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Education
- Web DeveloperOpenClassrooms2020● Donnez Vie aux Maquettes : Assemblez les pages en HTML5 et CSS3 à partir de maquettes graphiques, créant une expérience utilisateur fluide. ● Maîtrisez le Contenu : Intégrez des textes, images, sons et vidéos dans le code HTML5, faisant ressortir votre contenu. ● Accessibilité et Référencement : Assurez la conformité aux normes du W3C pour l'accessibilité et le référencement, atteignant un public plus large. ● Compatibilité Multi-Navigateurs : Garantissez une expérience en douceur sur différents navigateurs, quel que soit l'appareil. ● Interactions Dynamiques : Établissez une communication robuste entre le client et le serveur en utilisant JavaScript et PHP, permettant des interactions en temps réel. ● Gestion des Données : Organisez et gérez les bases de données avec facilité, stockant et récupérant les données de manière efficace
Certifications
- Web DeveloperOpenClassrooms2020