Freelancer profile translated to English.

Description

I support my clients from A to Z in their mobile application and web platform projects.

In addition to ensuring the complete UI/UX design and development, I offer my advice to guide your project in the relevant directions and to make the optimal technical choices. Thanks to an effectively designed approach from the start, your essential features are highlighted in robust and intuitive mobile and/or web solutions.

I manage the product vision, project management, and UX/UI design from France. Development is carried out with Flutter technology and our team of developers located in India, to compress development time and costs. You benefit from rapid delivery and no wasted resources: you keep your budget for future evolutions!

And because efficiency must always go with quality, the final product is tailor-made to best suit your needs.

A classic idea? No problem! Want to go further? Marketplace / SaaS / Fintech / Payment system / API integration / AI integration (ChatGPT / Gemini / Claude)

My commitments:

A clear roadmap and measurable KPIs

Precise and pre-modeled budget control

User-centric UI/UX Design that converts and retains your customers

Efficient development at a highly competitive price

From idea to success: Complete support from MVP to scale-up

-> View our Portfolio

The best is still to talk about it, do not hesitate to contact me to discuss your project!

Industry field of expertise

Languages

French
Native or bilingual
English
Fluent

Workplace preferences

Can work on-site

Paris (up to 50km)

Cueillette (Marketplace Agroalimentaire)
Co-Founder & CEO
DIGITAL AND IT
February 2023 - Today (3 years and 6 months)
Quimper, France
Co-creation and full development of a B2B2C marketplace connecting local producers and consumers, from idea to commercial launch with several thousand orders processed.

Technical achievements:
Complete architecture: Development of a robust and scalable native Flutter application + Node.js backend
Reference UX/UI: Design of intuitive user interfaces, optimizing the buying and selling experience
Complex integrations: Implementation of Mangopay (PSP), Apple Pay, and multi-actor payment solutions
Advanced business tools: Creation of a complete back-office (dispute management, automated emailing, refunds, real-time monitoring)
Technical optimization: Complete resolution of technical debt, clean and maintainable architecture

Business achievements:
Market validation: Successful launch of the beta with rapid user adoption
Commercial growth: Development of a high-purchase recurrence ecosystem
Economic innovation: Creation of a revenue model adapted to the psychological motivations of buyers and sellers
Supply/demand balancing: Commercial strategy synchronizing producers and consumers

Demonstrated expertise:
Enterprise-level Flutter/Node.js development
Complex PSP and payment system integrations
Multi-actor marketplace architecture
Product vision and commercial execution
Flutter Mobile Application iOS Development Mobile Development Flutter Developer
Sipartech (Scale-up Télécom)
Finance Business Partner
TELECOMMUNICATIONS
June 2017 - February 2023 (5 years and 8 months)
Paris, France
Strategic management of large-scale international projects in the telecommunications sector, with financial responsibility for intercontinental and trans-European submarine cable deployments.

Key achievements:
Fundraising: Design and presentation of pitch decks that raised over €250 million from Blackstone, Natixis, and the EIF
Advanced financial modeling: Development of investment models for infrastructure deployment projects exceeding €100 million, including risk analysis and ROI projections
Major financial restructuring: Complete orchestration of a debt restructuring with a banking pool, negotiation and signing of a new partnership with Natixis
Operational management: Leadership of a team of 3 senior management controllers, optimization of Revenue/OPEX/CAPEX processes
Internal digital transformation: Implementation of steering tools (management accounting, forecast P&L, forecast CashFlow)

Transferable skills for your projects:
Complex project management with high budgets
Client presentation and negotiation
Financial analysis and business case modeling
Team management and international coordination

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Master in Audit and Expertise
ESSCA
2018
Web Development
Le Wagon
2022
Advanced Web Development Training Completed – 2022 Successfully completed an advanced-level training program focused on full-stack web development. Covered modern front-end technologies (HTML5, CSS3, JavaScript, React), back-end frameworks (Node.js, Express), RESTful APIs, database integration (MongoDB/MySQL), version control (Git/GitHub), and deployment practices. Built real-world projects to enhance problem-solving and coding efficiency.

Check out Christophe's education

Figma for UX/UI Design
Udemy
2022
Figma UI/UX Design Web Development Prototyping Mobile Application Development Wireframes
Meta Front-End Developer
Coursera
2023
Web API HTML/CSS GitHub JavaScript CSS3

Christophe's certifications are only visible to Malt Community members

Christophe De Cheffontaines

Mobile app developer | Flutter | ios | Android

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