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Hervé D.HD

Hervé D.

Fullstack Dev Next.js | Fintech

€400/day
Brest, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Hervé

🚀 JavaScript Fullstack Developer with 10+ years of experience
Specializing in rapid prototyping of business applications for startups, fintech, and SMEs

WHAT I DO BEST

I turn your ideas into functional applications in 7-14 days, not 3 months.

Modern Stack: Next.js, React, Node.js, PostgreSQL, REST APIs
Automated Testing: Playwright, Jest
Automation: AI, integrations, workflows

MY UNUSUAL PATH

After 3 years in a banking environment (Arkéa, Crédit Mutuel) as a Business Analyst, I returned to my primary passion: developing concrete solutions.

This dual role allows me to:
✅ Understand your business needs without 10 scoping meetings
✅ Translate directly into clean, maintainable code
✅ Deliver quickly with a pragmatic approach

2025 IN NUMBERS

- 5 applications delivered (HR, Restaurant, Volunteer Management)
- Stack: Next.js, React, Node.js, SQLite
- Test coverage > 85%
- 100% of projects delivered on time

SECTORS WHERE I EXCEL

🏦 Fintech & Banking (I know compliance constraints)
💼 B2B Business Apps (HR, planning, management)
🚀 MVP & Prototypes (from idea to deployment)

WHY WORK WITH ME

- Full autonomy: I manage from A to Z
- Fluid communication: regular updates
- Pragmatism: no over-architecture, code that works
- Speed: short iterations, continuous feedback

📩 Available for missions: remote (preferred) or Brest/Brittany
  • English

    Fluent

  • Spanish

    Basic

  • French

    Native or bilingual

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

Experience

  • Maitrea (Guyot)
    Fullstack Developer
    ENERGY AND UTILITIES
    October 2025 - October 2025
    Brest, France
    Comprehensive project management and invoicing platform

    Business management web application integrating time tracking, invoicing, and project management.

    Key Features:
    - Project management with schedules and team member assignment
    - Complete time tracking system with timesheets and control
    - Automated invoicing with scheduling and hourly rates
    - Annual summary and financial dashboards
    - Control of untracked days and alerts
    - Client and employee management
    - Multi-role administrator dashboard
    - Public holiday and leave management

    Technical Stack:
    - Frontend: React, modular components, interactive charts
    - Backend: Node.js, REST API
    - Architecture: SPA with authentication and protected routes

    Result: Complete business management solution enabling real-time tracking of time, attendance, and invoicing. Automation of administrative processes and significant productivity gains.

    Duration: 1 month (October 2025)
    Développeur ReactJS REST API Dashboard interactif Facturations Développement Node.js
  • Pay Addict - Alexia & Selene BURTET
    Independent Fullstack Developer
    HUMAN RESOURCES
    August 2025 - October 2025 (2 months)
    Brest, France
    Development of 2 applications for HR management:

    PayAddict HR - Complete HR management application (React)
    - Leave management with interactive calendar
    - Work time entry by project
    - Mobile-friendly expense reports
    - Stack: React, modern design system
    - Demo: http://162.19.230.13/
    - Duration: 2 weeks

    PayAddict Provisions - Automation of provision detection (Node.js)
    - Automatic detection of 19 payroll data points
    - Calculation of 13 provision columns
    - Playwright automated tests (coverage > 85%)
    - Stack: Node.js, Playwright
    - Duration: 2 weeks
    Développeur React.js Node js REST API Playwright Développement Node.js
  • Divaskell
    Volunteer Management Platform (Node.js)
    CIVIC AND SOCIAL ORGANIZATIONS
    August 2025 - September 2025 (1 month)
    Brest, France
    Web application for a Breton cultural association organizing events (Fest-Noz, kermesses).

    Features:
    - Multi-role management (volunteer/admin/super-admin)
    - Automatic assignment and optimal volunteer scheduling
    - QR codes for volunteer check-in
    - Real-time evening monitoring (attendance, assignments)
    - Management of groups, roles, and time slots
    - Mobile-friendly interface accessible on smartphones

    Technical Stack: Node.js, SQLite, Bootstrap, Nginx
    Hosting: Dedicated server with Nginx

    Result: 5 hours saved per event through automation of registration, assignment, and real-time monitoring. Better visibility of staffing needs before each event.

    Development duration: 10 days
    Node.js React Développement Node.js Playwright Responsive integration

Recommendations

Stiven GuillaumeSG
FU
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Stiven Guillaume and 2 other people have recommended Hervé

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Education

  • Google Data Analytics
    COURSERA
    2024
    Ask Questions to Make Data-Driven Decisions Prepare Data for Exploration Process Data from Dirty to Clean Analyze Data to Answer Questions Share Data Through the Art of Visualization Data Analysis with R Programming Google Data Analytics Capstone: Complete a Case Study

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