Freelancer profile translated to English.
Back to original languageAbout Evariste
Full Stack Developer specialized in React, Node.js and NestJS, I support startups, SMEs and entrepreneurs in creating modern, high-performance and scalable web applications.
I work on both frontend (React / Next.js) and backend (Node.js / NestJS) development with a strong focus on:
performance,
code maintainability,
user experience,
and business needs.
I have notably developed:
- online booking SaaS platforms
- secure REST APIs
- JWT authentication systems
- Stripe integrations
- e-commerce applications
- dashboards and business tools
Main stack:
React • Next.js • Node.js • NestJS • PostgreSQL • Prisma • MongoDB • TypeScript • Docker • Stripe
What my clients appreciate:
clear communication,
autonomy,
speed of execution,
respect for deadlines,
reliable and scalable solutions.
Available for:
- SaaS development
- API creation
- application redesign
- startup MVP
- bug fixing
- performance improvement
- technical support
Immediately available for remote or on-site freelance missions.
French
Native or bilingual
English
Fluent
Can work on-site
Paris (up to 50km)
Experience
- ReservaSaasCo-founder & Full Stack DeveloperJanuary 2025 - March 2026 (1 year and 2 months)Paris, France
Context:
Development of a SaaS platform allowing professionals to manage their bookings, payments and clients from a centralized interface.
What was done:
- Complete design and development of the application:
- frontend & backend architecture,
- administrator dashboard,
- secure authentication system,
- REST API documented with Swagger,
- Stripe integration,
- invoice generation,
- responsive design,
- performance optimization,
- endpoint security,
- Docker deployment.
Result:
Delivery of a modern, scalable and fluid SaaS application offering an excellent user experience and an architecture ready for scaling.Stack:
React • Next.js • NestJS • TypeScript • PostgreSQL • Prisma • Stripe • Swagger • Docker - LA CAPSULEFULL STACK DEVELOPEROctober 2024 - October 2024Paris, FranceE-commerce Project Web Complete development of an e-commerce application with React 18. Responsive UI integration with TailwindCSS. Connection to the backend via Express.js / MongoDB. Implementation of reusable components and state management (Redux Toolkit). Implementation of user authentication and session management. Mobile Application
- CGI FRANCEFULL STACK DEVELOPERJanuary 2023 - August 2023 (7 months)Paris, FranceQuality Assurance & CI/CD: Management of End-to-End (E2E) test automation critical for a public organization's website using the JAVA test framework: Selenium. Integration of E2E tests into the continuous integration (CI/CD) pipeline via GitHub Actions, ensuring stable and rapid delivery of new features. Contribution to the development and maintenance of REST APIs. Participation in code reviews and Agile rituals.
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Education
- Double degree EN MIAGE (COMPUTER METHODS APPLIED TO BUSINESS MANAGEMENT)SOPHIAANTIPOLIS DE NICE2019Double diplôme EN MIAGE (MÉTHODES INFORMATIQUES APPLIQUÉES À LA GESTION DES ENTREPRISES)