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Chris CeraireCC

Chris Ceraire

FullStack Developer React | Next.js | .NET C#

€500/day
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Chris

FullStack Developer, I have over 8 years of experience in development and project management.

🚀 My expertise :
- FullStack Development: React, Next.js, TypeScript, Tailwind, Node.js, C#, .NET, ASP, SQL
- Artificial Intelligence: Integration of conversational and generative AI (OpenAI, Anthropic, Grok, Gemini etc.)
- Technical Project Management: From initial R&D to finished product, with agile methodology
- Architecture & Infrastructure: Implementation of robust environments, CI/CD, hosting (Vercel, Supabase, Webaxys)

💼 My recent achievements :
- Development of a B2BAI platformfrom conception to launch (Machina IA)
- Complete overhaul of aprediction game solutionwith over 50k users (Pronostic Games)
- Development of aGDPR compliance management solution(Colibri DPO)
-Supportfor professionals in beta testing and presentations at networking events
- Creation ofabout ten business applicationsfrom scratch with complete infrastructure and automated testing

What I bring to your projects :
- Technical AND business vision: I understand yourbusiness challenges
- Complete autonomy: fromneeds analysistoproduction deployment
- Quality & compliance: clean code, rigorous testing, GDPR compliance, responsible digital
- Client communication: relationship and feedback management

📍 Based in Rouen, remote or hybrid interventions
💼 Available for long-term assignments or one-off projects
  • French

    Native or bilingual

  • English

    Fluent

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

Experience

  • Machina IA
    CTO & Co-founder of Machina-IA
    SOFTWARE PUBLISHING
    September 2024 - December 2025 (1 year and 3 months)
    Rouen, France
    Development of a B2B AI platform compliant with GDPR and European AI legislation.

    MY ACHIEVEMENTS:
    – Creation of the application, from technical choices to production deployment
    – Implementation of a GDPR-compliant infrastructure hosted in a Norman data center (data sovereignty)

    DEVELOPMENT & ARCHITECTURE:
    – Full-stack design and development (React, Next.js, TypeScript, Tailwind, Chakra UI)
    – AI integration via AI SDK with fine-grained management of prompts, contexts, and tokens
    – Robust backend with Supabase (authentication, real-time DB, storage)
    – Administrator dashboard with detailed logs and analytics
    – Implementation of the payment stack (Stripe)
    – Unit and integration tests to ensure reliability

    DEVOPS & QUALITY:
    – Multi-environment management (production, pre-prod, QA) via Vercel then Webaxys
    – CI/CD pipeline with automated deployments
    – Monitoring and user support with continuous bug resolution

    PRODUCT & BUSINESS:
    – Analysis of field needs with liberal professions
    – Technical feasibility study and R&D on AI integration
    – Leading beta test sessions with iterative feedback
    – Presentation of the solution at networking events
    – Close collaboration with the co-founder on the product roadmap
    Next.js React.js Supabase Artificial Intelligence Typescript
  • ARAPL Normandie Seine
    Fullstack Developer
    SOFTWARE PUBLISHING
    December 2024 - November 2025 (11 months)
    Rouen, France
    Complete overhaul of ARAPL's digital ecosystem: modernization of the extranet, rewriting of the API SDK, and creation of an onboarding application.

    MY ACHIEVEMENTS:
    - Migration of the legacy .NET Framework extranet to a modern React / Next.js stack
    - Complete rewrite of the C2J API SDK from PHP to TypeScript with strict typing
    - Development from scratch of an onboarding application for new ARAPL members

    DEVELOPMENT & MIGRATION:
    - Full-stack design and development (React, Next.js, TypeScript, Tailwind, Chakra UI)
    - Implementation of an email sending solution (Resend)
    - SDK rewrite preserving security features (htpasswd authentication, HMAC-SHA512 signature)
    - Full coverage of API endpoints with robust error handling
    - Development of the onboarding application: smooth user journey for new members
    - Unit and integration tests to ensure reliability

    DEVOPS & QUALITY:
    - Maintenance of existing security standards during migration
    - Testing and validation of SDK compatibility with existing systems
    - Multi-environment management (production, pre-prod, QA) via Vercel
    - CI/CD pipeline with automated deployments
    - User support with continuous bug resolution

    PRODUCT & BUSINESS:
    - Analysis of field needs with liberal professions
    - Close collaboration with ARAPL on project progress
    - Solution presentation
    Next.js Typescript React.js TailwindCSS .NET
  • FTEL EDITION
    Project Manager
    SOFTWARE PUBLISHING
    November 2020 - January 2024 (3 years and 2 months)
    Rouen, Normandie, France
    - Technical lead for a project used by over 50,000 users.
    - Project management, development sprints, and liaison with support and product functions.
    - Team management, planning, and code review to ensure solution quality.
    - Development and maintenance of agency projects.
    Project Management Agile methodology Team Management Kanban Server Administration

Recommendations

GA
Kevin CauchoisKC
Andréa MeyerAM
+3
Guillaume Agdag and 5 other people have recommended Chris

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Education

  • Manager in Information Systems (M2)
    CESI Graduate School of Apprenticeship
    2020
  • Software Engineering Manager (M1)
    CESI Graduate School of Apprenticeship
    2019

Certifications

  • Certificate of Knowledge in Responsible Digital
    Institute of Responsible Digital and University of La Rochelle
    2023
    Master the lifecycle and levers of responsible digital (global challenges and observations) Knowledge of ICT impacts and associated legislation Knowledge of solutions to reduce the impact of IT Knowledge of work methodologies for implementing responsible digital Identify specific challenges in each major digital domain

Skill set

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