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Jerome R.JR

Jerome R.

Senior Full Stack Developer - AI Dev

€650/day
Strasbourg, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Jerome

Full stack developer with 20 years of experience in designing and developing complex backend systems. I primarily work with Java Spring Boot architectures using a DDD/CQRS approach, robust REST APIs, and React interfaces.

My playground: demanding business domains — scheduling, e-commerce, customer service, flow management — where domain modeling truly makes a difference.

What I bring concretely:

- Design of event-driven architectures (CQRS, Outbox Pattern, Event Sourcing)
- Production-ready Spring Boot APIs with optimized PostgreSQL and JPA
- Maintainable React interfaces, focused on DX and performance
- Full autonomy, no need for constant guidance

I integrate AI tools into my development workflow — particularly Claude Code for accelerated delivery: code generation, architecture review, automation of repetitive tasks. Result: a quality/speed ratio significantly above classic development.

Available remotely for freelance missions. I work on both greenfield projects and legacy system modernization.
  • French

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • Skedme.app
    Skedme, online appointment booking tool
    HEALTH AND WELLNESS
    February 2026 - March 2026 (1 month)
    Strasbourg, France
    Design and complete development of a B2C online appointment booking SaaS, targeting independent practitioners (alternative health, coaches, consultants). A French alternative to Calendly, designed for the French-speaking market.

    WHAT I BUILT
    Architecture & Backend · Java Spring Boot

    DDD modeling with 4 bounded contexts: Identity, Scheduling, Notification, Billing
    Secure REST API (authentication, role management)
    Availability, slot, booking, and cancellation management
    Notification system (email, automatic reminders)
    Payment integration

    Frontend · React

    Practitioner interface: agenda configuration, appointment management
    Embeddable booking widget (embed mode on client site)
    Optimized public booking funnel for mobile

    Infrastructure & Hosting

    Scalable cloud architecture
    Automated CI/CD
    Domain name, SSL, monitoring
    Front-End Development Back-End Development Claude Code Google API Spring boot
  • NDI
    Technician scheduling application — DDD/CQRS Architecture · Java Spring Boot · React
    REAL ESTATE
    July 2025 - March 2026 (8 months)
    Strasbourg, France
    Service company (B2B sector, ~50 field technicians). Need to replace an obsolete planning tool with a modern, maintainable, and business-oriented solution.

    Complete design and development of the application, from backend architecture to React components, with full autonomy.

    RESULT

    Tool in production, immediate adoption by teams. Significantly reduced planning time. Extensible architecture reused for other business modules.
    React.js Back-End Development Front-End Development
  • NDI
    Full Stack Developer
    DIGITAL AND IT
    December 2024 - December 2025 (1 year)
    AI-augmented development workflow · Claude Code · Azure DevOps
    Implementation of a development pipeline integrating Claude Code CLI:

    AI-assisted code generation and review on Spring Boot / React bases
    Azure DevOps automation with Claude Code integration
    Significant reduction in development time for repetitive tasks (DDD boilerplate, tests, mappers)
    Claude Code Azure DevOps Spring boot React.js Postgres

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