Freelancer profile translated to English.
Back to original languageAbout Romain
Full-Stack Developer | 11 years of experience | Creation & optimization of web solutions
Passionate about computers since I was a child, I designed my first website at 11 years old. Today, with more than 11 years of experience, I help companies realize their digital projects by developing high-performance, scalable, and maintainable applications.
💡 I rely on artificial intelligence as a development co-pilot to increase productivity, improve code quality, and accelerate deliveries.
🔹 What I can do for you:
✅Custom development:showcase sites, e-commerce, web applications (internal tools, SaaS…).
✅Maintenance & evolution:new features, bug fixes, technical redesigns.
✅Team reinforcement:freelance intervention in agile mode to strengthen your teams.
✅Consulting & digital strategy:SEO, performance, security, scalable architecture.
🛠 Technical skills:
💼 Experiences:Canva, CNRS, La Maison De L’Éleveur, Coface, Champagne Carole Haudot
📌 My objective: to make digital tools simple, effective, and adapted to your needs.
Need a reliable, responsive developer at the cutting edge of modern tools? Contact me, I would be delighted to discuss your project.
🔗 More info on Giovanetti.fr
English
Fluent
French
Native or bilingual
German
Conversational
Can work on-site
Saint-Memmie (up to 50km), Reims (up to 10km)
Experience
- Romain GiovanettiFull Stack EngineerNovember 2023 - Today (2 years and 7 months)Saint-Memmie, France
E-commerce development & optimization – La Maison De L’Éleveur
Long-term mission on a complex e-commerce site for a reseller of agricultural equipment:- **Front-end performance & UX**: interface optimization, increase in conversion rate, Lighthouse score increased from 83 to 94.
- **Back-end upgrade**: migration from Symfony 4 to Symfony 5 with extensive refactoring, reduction of loading time from 1200 ms to 300 ms.
- **Email system redesign**: securing via SPF, DKIM, DMARC, reducing email rejections by 80%.
- **Decoupled email processing**: partial asynchronous management with retry queue and custom handlers, adapted to the constraints of shared hosting (Apache + PHP).
⸻Showcase site & product configuration – Champagne Carole Haudot
*React/Redux e-commerce sitefor a champagne house.- **Addition of a custom product configurator**, making the site more dynamic and manageable.
⸻Redesign of grade management application – Saint Joseph College, Philippines
- Taking over an incomplete and unstable application developed by a student.
- CanvaSoftware Engineer (Frontend)SOFTWARE PUBLISHINGMay 2023 - October 2023 (5 months)Melbourne, Australia
Improvement of a high-traffic business application – Tech sector / SaaS product
Intervention on a complex web application used by business specialists, with scalability, maintainability, and UX challenges:- **Infinite scroll on activity logs**: implementation of a smooth access system to user history with advanced management of microservices calls (with or without pagination) via React and MobX.
*Refactoring & technical migration:replacement of obsolete components, migration of internal API calls to the latest versions, improving stability and performance.*Extended test coverage:addition of unit tests for components that were previously untested, making the existing code more reliable.*Contribution to the product roadmap:participation in the development of an 18-month strategy to contain costs related to user growth, via machine learning, integration of OpenAI models, and improvement of internal tools.✅Result:a smoother, more robust, and scalable application, with better control of operational costs. - AutoEntrepreneurFull-Stack DesignerTELECOMMUNICATIONSDecember 2019 - April 2023 (3 years and 5 months)Saint-Memmie, France
Development of advanced e-commerce tools – La Maison De L’Éleveur
Complete support on a custom e-commerce project for a major player in the distribution of agricultural equipment:*Automated quote generation:creation of a system managing 39 models via Dompdf, automating the sending of PDF quotes — estimated productivity gain of 2.5 FTE.*Personalized product assistants:development of 8 assistants in native JS to order complex products (custom-made sheets, door kits, gutters…), with a React/TypeScript redesign for one of them.*Dynamic pricing modules:price calculations based on dimensions, options, and quantities, integrated in the front-end.*Optimized mobile experience:responsive redesign, tactile improvements, and adaptation to tablets and smartphones.*Order management system:conversion of quotes into orders via a secure temporary token.*Intelligent shopping cart tracking:module for detecting abandoned orders with alerts to sales representatives for proactive follow-up.*Reliability and maintenance:addition of automated tests to prevent regressions, technical redesign from Symfony 3 to 4 for more performance and security.✅Result:significant time savings, improved conversion rate, and a more reliable, maintainable, and business-oriented site.⸻Showcase site and online store – Champagne Carole Haudot
Development of a modern site for a champagne producer:*Elegant and efficient UI/UX design*Development of the site with React and Reduxfor smooth navigation and simplified store management.✅Result:a professional, responsive, and easy-to-maintain online presence.
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Education
- Master informatique (E-services)Université Lille 1 - Sciences et Technologies2012