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Nathan ChevalierNC

Nathan Chevalier

Full-Stack Developer | AI · Symfony · Next · Nuxt

€600/day
1 project
Caen, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Nathan

🎯 Full-stack developer — from Symfony back-end to Nuxt/Next front-end, with AI integration

Computer engineer with over 8 years of experience, I design end-to-end web applications: robust back-end with Symfony (up to 7.1) and API Platform, modern front-end in Nuxt/Next (Vue & React, TypeScript), and integration of generative AI into real products. I work on projects where reliability, performance, and inter-system communication are key challenges.

My core expertise lies in well-structured modular architectures, adherence to best practices (SOLID, Clean Code, DDD), and the development of robust APIs.

🔌 Custom API Integrations: HubSpot, ERP, CRM, Stripe, Mangopay, business tools, legacy gateways
📦 Symfony Back-end / API Platform: secure endpoints, DTOs, State Processors, EventListeners
⚡ Modern Front-end: Nuxt 3 / Next, Vue 3 & React, TypeScript, design systems, reusable components
🤖 Applied AI Integration: LLM API connections (Anthropic, OpenAI), RAG, content generation, business assistants, and automations
🏗️ Hexagonal Architecture / Domain Driven Design: isolated entities, clear business logic, automated tests
☁️ Cloud Deployment: Scaleway, CleverCloud, Docker, AWS, GCP

I have notably carried out CRM ⇄ ERP synchronizations, complete redesigns of business portals for body shops, custom web platforms in Nuxt/Next, and I integrate generative AI into concrete use cases: data extraction and normalization, writing assistants, and LLM-powered automations.

I work equally well independently or supporting existing teams on redesign, integration, or scaling projects.

📞 Contact me if you want a serious, structured, and solution-oriented developer.

Let's build something solid! 💪
  • English

    Fluent

  • French

    Native or bilingual

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

Experience

  • My Moojo
    Full-Stack Developer & Technical Lead
    EDUCATION AND E-LEARNING
    January 2025 - Today (1 year and 7 months)
    Caen, France
    👉 Complete redesign of the educational crowdfunding platform: migration from the old MVP (React/Express) to a modern and sustainable Symfony / Next.js architecture, with increased requirements for reliability, compliance, and scalability. I am involved in both the technical aspects and the platform's management responsibilities.

    ✅ Migration from the historical architecture to a structured Symfony back-end (API Platform, domain separation)
    ✅ Redesign of the contribution funnel and payment interfaces
    ✅ Integration of payments via Mangopay: management of multi-beneficiary flows, payment compliance
    ✅ Design of the management back-office and campaign monitoring
    ✅ Platform regulatory compliance: AML/KYC framework, due diligence, and associated procedures
    🤖 Exploration of AI use cases — campaign success scoring, pitch writing assistant, CSM task automation

    🛠️ Symfony · API Platform · Next.js · TypeScript · Mangopay · AML/KYC
    MangoPay Next.js Symfony AML TypeScript
  • ZeCarrossery
    V2 Development of the Business Application
    AUTOMOBILE
    October 2024 - Today (1 year and 10 months)
    Caen, France
    👉 Complete redesign of the internal body shop management application, with a modular architecture designed for scalability and maintainability.

    ✅ Back-end development in Symfony 7.1 with API Platform 4, structured into independent domains
    ✅ Implementation of a suitable hexagonal architecture: clear separation of entities, repositories, business logic, DTOs, states, event listeners...
    ✅ Front-end development in Nuxt 3 (Vue 3): SSR, Composition API, v-models, Storybook components
    ✅ Setup of reusable components with an internal design system
    ✅ Integration of complex business features: quote management, repair tracking, body shop portal
    ✅ PDF generation, transactional emails, third-party API interactions via dedicated infrastructure
    ✅ YouSign integration

    🛠️ Symfony 7.1 · API Platform 4 · Nuxt 3 · Vue 3 · Yousign
    Symfony API PHP Back-End Development Yousign
  • ZeCarrossery
    Synchronization between HubSpot and ZeCarrossery
    AUTOMOBILE
    July 2024 - July 2024
    Caen, France
    👉 Implementation of a gateway between the ZeCarrossery business ERP (legacy PHP) and the HubSpot CRM used by the support & sales team.

    ✅ Bidirectional synchronization of contacts, transactions, quotes, and invoices
    ✅ Development of a custom connector via HubSpot APIs
    ✅ Fine-grained management of duplicates and data conflicts
    ✅ Secure exchanges with OAuth authentication and synchronization logging
    ✅ Improved internal team productivity by automating data updates
    PHP Hubspot API Back-End Development Automation

Reviews

5.0

Out of 1 rating

P

Pierre

Schoolab

Reviewed on 2/4/2019

Recommendations

Damien HebertDH
Rémi FestouRF
Yann ChapuisYC
+2
Damien Hebert and 4 other people have recommended Nathan

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Education

  • Computer Engineering Degree
    ESIEA
    2021
    Majeur Cloud Computing Mineur Sécurité
  • Computer Science Bachelor's Degree
    University of Caen
    2018

Certifications

  • TOEIC
    TOEIC
    2021
    Total: 935

Skill set

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