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Alex PrevotAP

Alex Prevot

React Developer | TypeScript, Design Systems

€500/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Alex

Full Stack Developer, I design and develop performant and scalable web applications.
Specialized in JavaScript / TypeScript, I work on both the front-end (React, Next.js, Vite, Chakra UI) and the back-end (Node.js, NestJS, Express, Prisma, TypeORM).

My expertise also covers the integration of third-party services (APIs, databases, AWS cloud, CI/CD) as well as the implementation of good software architecture practices (Clean Architecture, TDD, microservices).

What I offer:
• Custom front & back development
• API design and database integration (Prisma & TypeORM)
• Performance and code optimization
• Implementation of simple and effective DevOps workflows
• Technical support and advice on technological choices

Serious, autonomous, and proactive, I support my clients in transforming their ideas into reliable and scalable products.
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Paris (up to 50km)

Experience

  • Ramify
    Full Stack Developer (ReactJS, NestJS, Prisma)
    BANKING AND INSURANCE
    March 2025 - September 2025 (6 months)
    Paris, France
    • Creation and launch of Valhyr Capital, the Asset Management branch of Ramify (June 2025), including the deployment of the first fund “X Fund” for wealth management advisors (CGP)
    • Technical lead on the design and development of the Ramify platform (web & mobile), a high-end wealth management solution integrating portfolio tracking, asset allocation, and diversified financial products (life insurance, PER, SCPI, private equity, art, crypto, etc.)
    • Microservices backend architecture in NestJS + Prisma + PostgreSQL, designed for scalability, resilience, and cross-platform synchronization
    • Adoption of a PNPM monorepo to centralize shared libraries (types, UI, configs), with a tool-equipped environment (ESLint, Prettier, SWC) for homogeneous development
    • Advanced API security via JWT, custom guards, and refresh tokens, ensuring the confidentiality and reliability of sensitive operations
    • Integration of AWS infrastructures (S3) for process automation and secure user document management
    • Backend optimization: application cache, Prisma indexing, parallel execution of asynchronous processes for maximum performance
    • Modern and responsive React frontend, developed with Vite + Chakra UI v3 + Framer Motion for a fluid, performant, and elegant experience
    • Implementation of CI/CD pipelines and staging/production environment management for continuous and controlled deployments
    NestJs React.js Node.js PostgreSQL
  • Moove
    Full-Stack Developer
    AVIATION AND AEROSPACE
    October 2023 - September 2024 (11 months)
    Paris, France
    • Development of a scalable and secure flight booking system for Moove, with a full-stack NestJS (backend) and ReactJS (frontend) architecture
    • Design of an internal GDS automating ticket updates, cancellations, and data synchronization between systems
    • Centralization of flight management to ensure real-time consistency across different airline platforms
    • Integration of OPS solutions such as FL3XX, Leon, and Skylegs to optimize planning and operational management
    • Implementation of fluid inter-system communication via webhooks and APIs, ensuring real-time flight tracking and better resource allocation
    • Complete overhaul of the ReactJS frontend, improving user experience and overall site performance
    • Development of an identity scanning module with Google Cloud Vision API, enabling automatic extraction and verification of passenger information
    • Automation of flight data synchronization using GCP Cloud Scheduler / Cron Jobs, ensuring continuously updated information
    • Stack: NestJS, ReactJS, TypeScript, PostgreSQL, GCP (Vision API, Cloud Scheduler), Docker, GitHub
    React.js Node.js Typescript NestJs PostgreSQL

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Education

  • Expert in Information Technology
    Epitech
    Expert en Technologies de l'Information
  • Courses in software development, cloud computing, and marketing
    California State University
    Développement logiciel, cloud computing et marketing

Skill set

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