Jean-Baptiste Renart
Web Developer • JBR Development
Your vision, my code, your growth lever.
Recent projects
Web applications designed to meet my clients' real needs.
REV Comptabilité
Business web application built for the accounting firm REV Comptabilité (Wambrechies). Microsoft Azure AD SSO authentication, client portal with online appointment booking, Outlook calendar sync via Microsoft Graph API, automated email notifications with Resend, and multi-role management (admin, accountant, associate, client) with Row-Level Security permissions on all Supabase tables.
Nicolas Steinberg
Portfolio website for a luxury hospitality consultant. Premium and refined design reflecting the luxury world. Smooth scroll animations, impeccable Lighthouse scores (97/100 performance, 100/100 SEO). Integration of custom strategic tools.
Jay
Jay is a conversational AI assistant accessible via WhatsApp that enables professionals to manage their CRMs and calendars through voice. Users send a voice note describing what they want to do, and Jay transcribes, analyzes, and automatically executes the corresponding actions in connected systems. Supports 6 major CRMs (HubSpot, Salesforce, Pipedrive, Zoho, Odoo, TeamLeader), calendar and email integrations.
RDP Glass
Complete web application for a B2B glass packaging distributor. Admin dashboard, product catalog management, integrated blog system, and client interface optimized for conversion.
What I offer
Web solutions tailored to your needs and budget.
Showcase websites
A professional online presence that reflects your identity and converts visitors into customers.
Web applications
Dashboards, content management, business tools — custom solutions that simplify your daily work.
Technical development
Internal applications, API integrations, automations — robust solutions for your complex needs.
Landing pages
Conversion-optimized pages for your campaigns, products, or events.
Website redesign
Modernizing your existing site: design, performance, user experience.
Maintenance
Updates, fixes, improvements — your website in good hands.
Rates: Custom quote
How does it work?
A structured approach for successful projects.
Discovery
Questionnaire + meeting (Lille area or video call) to understand your needs and goals.
Proposal
Detailed quote + timeline. 50% payment at signature to get started.
Development
Agile methodology with regular check-ins and demos. Unlimited revisions within scope.
Delivery
Final 50% payment + 30-day bug warranty. Optional maintenance available.
Dual expertise
Service + Technical
From hospitality to code
After several years in luxury hospitality — including as a concierge at a 5-star boutique hotel in Paris — I learned one essential thing: understand the client first.
Now a web developer, I bring that same standard to your digital projects. I listen, I understand, then I code exactly what you need.
Customer service mindset + technical expertise: that's my dual skill set, and your advantage.
5★
Google Reviews
100%
Satisfaction
24-48h
Response
What they say
“It's rare to find people who can translate a complex strategic vision into such a precise interface. The result exceeds the usual market standards. A valuable collaborator for those who tolerate no approximation. An expert to work with while he's still available, because this level of execution is a rare find.”
Nicolas Steinberg
Luxury hospitality consultant
“The development of our new website has just been completed and JB delivered work that exceeded our expectations. His understanding of the issues, his responsiveness, and his way of translating our requests was simply perfect.”
Thierry Dehon
CEO of RDP Glass
“JBR Development built my new website for my accounting firm. I am delighted with the result and the service, carried out with methodology and professionalism with regular progress updates to meet my expectations! Highly recommended!”
REV Comptabilité
Accounting firm
Frequently Asked Questions
Let's discuss your project
Got an idea, a need, or a question? Fill out the form or contact me directly by email. I'll get back to you within 24-48 hours.