Freelancer profile translated to English.
Back to original languageAbout Jérôme
Certified CII Freelancer, I handle projects from conception to production, ensuring clean architecture and maintainable code.
Full-stack developer since 1999 and mobile developer since 2012, I assist companies, startups, and SMEs in building SaaS platforms, high-performance and secure APIs, and robust, scalable digital solutions.
I am involved in the entire lifecycle: scoping, architecture, backend and frontend development, integration of third-party APIs and services, security, performance, scalability — for both greenfield projects and existing system overhauls or refactors.
My approach is quality and sustainability-oriented: clean code, best practices, maintainability, and a long-term vision. I am comfortable working with product, design, and business teams, communicating clearly with both technical and non-technical stakeholders. Available for team augmentation, independent work, or consulting.
Stack:
Backend — Symfony/PHP, Node.js, REST API
Mobile — React Native, iOS, Android, App Store / Google Play
SaaS — Multi-tenant architecture, subscriptions, scalability
Frontend — HTML, CSS, SCSS, JavaScript, React, Bootstrap
Infra — Relational DBs, third-party services, deployment, maintenance
French
Native or bilingual
Spanish
Conversational
English
Fluent
Can work on-site
Paris (up to 50km)
Experience
- Up N StartWeb & Mobile Developer - Full StackSOFTWARE PUBLISHINGOctober 2016 - Today (9 years and 10 months)Paris, FranceSince 2016, I have held a position as a full-stack and mobile developer, with a strong specialization in SaaS application development, native iOS and Android mobile application development, and the design and evolution of web and e-commerce solutions.I am responsible for the backend and frontend development of SaaS platforms, including the design of application architectures, secure API development, data management, user authentication, and the implementation of scalable solutions tailored to business needs.I also work on the development of native mobile applications for iOS and Android, from technical design to production release, ensuring performance, stability, and user experience.In parallel, I create WordPress websites, whether they are showcase sites or custom platforms, and I develop online stores using PrestaShop, including the integration of specific features, secure payment solutions, and e-commerce performance optimization.Finally, I manage web servers, including installation, configuration, security, and maintenance of hosting environments, to ensure the availability, security, and performance of deployed applications and services.
- PlusQueDuWebFull Stack DeveloperDIGITAL AND ITDecember 2014 - September 2016 (1 year and 9 months)Paris, FranceDevelopment of web and mobile applications using Symfony TWIG / HTML5/CSS3 - JavascriptDevelopment of websites using WordpressDevelopment of online stores using PrestashopWeb server administration
- DSIIGFull Stack DeveloperDIGITAL AND ITJune 2013 - November 2014 (1 year and 6 months)Villepinte, FranceDevelopment of web and mobile applications using Symfony TWIG / HTML5/CSS3 - JavascriptDevelopment of websites using WordpressDevelopment of online stores using PrestashopDevelopment using Symfony2Development of Web to Print solutions
Reviews
Philippe
INTERSPHERES
Reviewed on 2/9/2018
We are very satisfied with Jérôme's seriousness and professionalism.
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Education
- Certificate in Ergonomics and Development for iPhone / iPad / AndroidREGART.NET Paris2012Développement d'applications Natives IOS Développement d'applications Hybrides Plateforme : Xcode - Swift - Appcelarator Titanium - PhoneGap - Ionic
- WEB Integrator CertificationCNAM Reims2002Acquisition de HTML4 CSS Javascript