Freelancer profile translated to English.
Back to original languageAbout François
+10 years of experience | Backend & Frontend Development | E-commerce & Startups | Ruby on Rails & Typescript | INSA Lyon Engineer
> Why trust me?
Senior web developer, I support startups and SMEs in the design, development, and optimization of their e-commerce platforms and web applications.
My profile covers backend (Ruby on Rails), frontend (Turbo, Stimulus, React, Next.js), and DevOps (deployment, CI/CD, monitoring), allowing me to manage projects from initial conception to the maintenance of mature applications, ensuring performance, scalability, and evolvability.
A graduate engineer from INSA Lyon, I combine technical rigor, product sense, and a pragmatic approach to deliver high-performing, scalable, and evolvable solutions aligned with business value.
> Key Expertise
E-commerce: custom e-commerce platforms, payment integration (Stripe, PayPal, ...), business automations, dashboards, and back-offices.
**Full-stack web development**: custom applications, API integration, performance, scalability, and maintainability.
**Architecture & DevOps**: CI/CD pipelines, server deployment (Ansible) or cloud (Google Cloud, AWS, Render, Heroku), monitoring, and optimization.
**Product & MVP Development**: rapid creation of robust and scalable products (Rails, Stimulus, REST/GraphQL APIs).
**Collaboration & Mentoring**: product team collaboration, code review, best practices, and knowledge transfer.
> They trusted me
I have collaborated with companies of various sizes such as startups Kelvin and Direct Market, jewelry stores Ordumonde, SMEs Visorando and Babasport, as well as the Carrefour group, on various web projects: SaaS tools, e-commerce platforms, and business applications.
đź“© Contact me now to discuss your project!
French
Native or bilingual
English
Fluent
Chinese
Fluent
German
Basic
Remote only
Primarily works remotely
Experience
- kelvin technologiesDevelopment of a Whatsapp chatbotREAL ESTATEFebruary 2024 - April 2024 (3 months)Paris, FranceDevelopment of a custom Whatsapp chatbot integrated with the Kelvin web application backend.The chatbot's objective is to collect information about the user's home: various details, photos, and videos, then upload this information to the Kelvin web application back-office to initiate a new energy renovation project.
- BabasportConsulting and DevelopmentENTERTAINMENT AND LEISUREApril 2020 - Today (6 years and 2 months)Paris, FranceTechnical lead on the Babasport web application based on the Ruby on Rails framework, consulting and development.I am responsible for Babasport:- Version upgrades from Rails 4 to Rails 8- Design and development of new features- Bug fixing- Backend and frontend performance optimizations- Integration with the Cloudflare service
- OR DU MONDEConsulting and DevelopmentE-COMMERCEJuly 2019 - Today (6 years and 11 months)Paris, FranceTechnical lead on the OR DU MONDE web application based on the open-source e-commerce framework Spree, consulting and development.I am responsible for OR DU MONDE:- Version upgrade from Spree 1.2 to Spree 4.4- Design and development of new features- Bug fixing- Design and development of a frontend decoupled from the backend with NextJS
Reviews
Guillaume
kelvin technologies
Reviewed on 2/7/2025
François is a freelance Ruby on Rails developer of exceptional skill, who played a crucial role in delivering high-quality features to our clients. Collaborating closely with our team of experts for several months, he integrated seamlessly. He demonstrated a remarkable ability to meet our team's quality requirements while maintaining the necessary speed of execution. He stands out for his expertise and his ability to propose tailor-made solutions, perfectly adapted to our needs. I recommend him warmly and with the utmost confidence.
A
Antoine
Babasport
Reviewed on 7/8/2020
Top-notch, deadlines met. Autonomy, responsibility. In short, to be recommended!
Recommendations
AP
AR
+5
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Education
- EngineerINSA Lyon2008