Freelancer profile translated to English.
Back to original languageAbout Romain
Symfony / API Backend Developer • React • NestJS
I design and develop high-performance, maintainable, and scalable SaaS applications, APIs, and web platforms.
Specializing in Symfony backend, REST APIs, and modern web architectures, I primarily focus on:
• Developing SaaS applications and business platforms
• Designing APIs and integrating third-party services
• High-performance and scalable backend architectures
• React / TypeScript applications
• Optimizing performance and maintainability
I have worked on several projects for companies like Canon Bretagne and Renault:
• Business ERP & Dynamics 365
• Data synchronization and integration
• Internal platforms and tools
• Connected industrial applications
• SAP integrations and external APIs
Main Stack:
Symfony • PHP • REST APIs • NestJS • React • TypeScript • PostgreSQL • Docker • AWS • GraphQL
What I bring:
✔ Clean, maintainable, and scalable code
✔ Long-term architecture vision
✔ Strong technical autonomy
✔ Good communication and product vision
✔ Performance and quality-oriented development
Available for backend, API, SaaS, web architecture, and business application missions.
French
Native or bilingual
English
Native or bilingual
Spanish
Conversational
Remote only
Primarily works remotely
Experience
- NebulaCodeFreelance Backend & Full Stack DeveloperJanuary 2025 - Today (1 year and 5 months)Angers, FranceDevelopment of web applications, APIs, and SaaS platforms for startups and SMEs.
- Backend development with Symfony, NestJS, and Node.js
- Creation of REST APIs and scalable architectures
- Development of React / TypeScript interfaces
- Integration of third-party services (Stripe, OAuth, external APIs)
- Docker deployment, CI/CD, and cloud infrastructure
- Performance and maintainability optimization
- Development of SaaS platforms and business tools
- Canon BretagneWeb Developer – Symfony & ReactSeptember 2020 - September 2023 (3 years)Liffré, FranceDevelopment of Symfony & React business applications connected to Dynamics 365 for internal data and process management.
- Development of REST APIs and back-end services
- Data synchronization with Dynamics 365
- Migration of Windev applications to React
- Performance optimization and application maintenance
- Development of X++ / Dynamics 365 FO modules
- Groupe RenaultFull Stack DeveloperAUTOMOBILEApril 2019 - September 2019 (5 months)Le Mans, FranceParticipation in several industrial projects related to maintenance, ERP, and access control.
- Development of business applications in PHP / JavaScript
- Integration of REST APIs and synchronization with SAP
- Development of an RFID system connected with ESP32
- Creation of responsive web interfaces
- Optimization of internal performance and processes
Reviews
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Education
- Master's degree in Computer Engineering and Information Systems, Web EngineeringESGI2023Expert en ingénierie informatique et des systèmes d'information , Ingénierie du web
- Professional Bachelor's degree in Web and Mobile DevelopmentUniversity of Orléans2021Licence professionnelle, Développement web et mobile