Freelancer profile translated to English.
Back to original languageAbout David
Fullstack Symfony / React Developer — SaaS, CRM, ERP & Custom Business APIs
My goal: transform a business need into a robust, maintainable solution designed to evolve over time.
Fullstack Symfony / React Developer in Paris, I help SMEs, startups, and software publishers design, take over, or evolve business web applications: SaaS, CRM, ERP, back-office, REST APIs, intranets, and internal tools.
I mainly work on projects where speed, cleanliness, and sustainability are key: Symfony architecture, API Platform, React, API integration, performance optimization, application maintenance, and business process automation.
I particularly work on:
• Custom business applications
• SaaS platforms
• REST APIs & third-party integrations
• CRM / ERP / intranets
• Booking & Stripe payment systems
• Dashboards & management tools
• Redesign and evolution of existing projects
• Maintenance and technical optimization
Recent projects:
• Optiow — Project management portal with multi-user management
• ACI — Event booking platform with Stripe payment
• CSK Services — Business CRM & customer data centralization
• BCAuto Enchères — Development of internal tools for an automotive auction platform
Main stack:
Symfony, PHP, React, Next.js, TypeScript, API Platform, Node.js, MySQL, PostgreSQL, Docker, Linux.
Why work with me?
• Long-term product & architecture vision
• Clear communication and regular updates
• Robust and scalable solutions
• Strong technical autonomy
• Post-production support
I can quickly help you scope your project, identify key technical points, and propose an architecture tailored to your needs.
Available immediately — quick response.
French
Native or bilingual
English
Conversational
Can work on-site
Paris (up to 50km), Lyon (up to 50km), Bordeaux (up to 50km), Montpellier (up to 50km), Nantes (up to 50km)
Experience
- OptiowFull-Stack DeveloperSOFTWARE PUBLISHINGApril 2026 - April 2026Paris, FranceDevelopment of a comprehensive solution for tracking, historizing, and analyzing all actions performed within a business application.The goal is to provide teams with a clear view of each modification, who did what, when, on what element, and with what impact, while facilitating validation, quality control, and decision-making.Technical stack used:Node.js, Vue.js, PostgreSQL, Redis, and Docker.The project notably includes:
- Complete user action history
- Traceability of modifications on sensitive data
- Business event logging
- Advanced review system with statuses, comments, and validations
- Role-based access management
- Dashboards to monitor activity
- Performance indicators
- Performance optimization with Redis
- Robust database with PostgreSQL
- Containerized environment with Docker
The tool helps reduce errors, improve internal tracking, secure processes, and concretely measure the time or productivity gains generated.Benefits:Increased transparency, reduced disputes, faster validation, better team organization, and data-driven management. - ACIFull-Stack DeveloperSOFTWARE PUBLISHINGSeptember 2025 - February 2026 (5 months)Paris, France
ACI – Reservation Management System
Development of a custom reservation management application to automate organization and availability tracking.Robust Application Architecture:Development of a modular Full Stack application enabling centralized management of rooms, time slots, and users, with a simple and reliable interface for operational teams.Reservation Management & Conflict Prevention:Implementation of a reservation system ensuring slot uniqueness and automatic availability validation, reducing human errors and scheduling conflicts.Administration Interface & User Management:Creation of a dashboard for managing reservations, schedule changes, and access rights based on roles (administrators, managers, users).Performance & Reliability:Optimization of queries and implementation of backend validation mechanisms to ensure data consistency in production.Deployment & Maintenance:Configuration of the production environment and setup of an architecture facilitating updates and continuous maintenance.Result:Complete digitalization of the reservation process, improved visibility on room occupancy, and significant reduction in management errors. - CSK servicesFull-Stack DeveloperSOFTWARE PUBLISHINGJanuary 2025 - April 2025 (3 months)Paris, France
Business CRM & Customer Data Centralization
Design and development of a custom CRM to centralize customer data and optimize the tracking of commercial interactions.Modular Application Architecture:Development of a structured backend with clear business logic, enabling management of customer profiles, action histories, and internal workflows.Data Centralization & Traceability:Implementation of a relational database ensuring customer information consistency and complete traceability of operations (creation, modification, tracking).Business Interface & Team Productivity:Creation of a user-friendly interface allowing users to quickly consult essential information, manage customer files, and track action progress.Process Automation:Implementation of automation mechanisms to reduce repetitive manual tasks (notifications, status updates, action reminders).Security & Access Management:Implementation of a role and permission management system to secure access to sensitive data.Performance & Reliability:Optimization of queries and data structuring to ensure smooth usage even with a growing volume of information.Result:Significant improvement in customer management, reduction of manual tasks, and better visibility of operational activity.
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Education
- MBA II: Digital Architect ExpertDigital School Of Paris2022
- BTS SIO, option software solutions and business applications (SLAM)Lycée Ort Daniel Mayer de Montreuil2019