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Valentin MercierVM

Valentin Mercier

No-Code Expert | Bubble.io | MVP ⚒️

€550/day
Genève, CH
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Valentin

Hello 👋,

I am a No-code/Low-code developer with over 4 years of experience, specializing in building robust and scalable web applications. I began my career in strategy for a successful startup (OuiHelp) before creating my own startup, Tastyn, developed on Bubble.io, which I sold in 2024.

🔹 My Expertise

• Development of complex applications (SaaS, Marketplaces, CRM, Internal Tools) on Bubble.io.
• Process automation and tool integration via Make, n8n, and Zapier.
• Optimized backend with Xano and Supabase for scalable solutions.
• Support for scaling your apps (from MVP to dedicated servers)

🌍 International Experience

I have worked on projects for clients in France, Germany, Switzerland, and England, adapting my solutions to the specificities of each market.

🚀 Why Work With Me?

• 30+ successfully completed projects, from MVP design to deployed production solutions.
• Expertise in performance optimization, security, and scalability.
• Coaching for startup incubators and training on best development practices.

📈 What I Can Bring You

I will guide you from A to Z, from gathering your needs to delivering your project, with an agile and iterative approach, always ensuring optimization of performance and user experience.

💼 Collaboration Model

I prefer a fixed-price approach, ensuring a clear and transparent budget, with no surprises.

🔗 Ready to turn your ideas into reality? Contact me to discuss your project! 😊

Stack:

• Bubble.io, Xano, Supabase, Make, n8n, Airtable, Notion.
  • French

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • Cardino
    Lead Developer
    AUTOMOBILE
    September 2023 - October 2024 (1 year and 1 month)
    Berlin, Germany
    Cardino is a C2B marketplace for electric vehicles. I joined the team as the first developer.

    My role:
    - Creation of solid processes for a large team (4 devs/+6 product/+2 automations)
    - Achieving performance using best low-code practices (from 0 to 500+ active users)
    - Complex API integration REST, SOAP, Websocket (12+ integrations)
    - Creation and management of a complex bidding algorithm and transaction system (from $0 to $10M volume per month)
    - Work on app performance (Improvement of Lighthouse score from 42 to 78)


    Stack: Bubble.io, n8n, Make, Airtable

    Cardino in numbers:
    - 45 employees
    - 6 countries
    - 15,000+ users
    - €4M raised in seed
  • Tastyn
    Founder
    RESTAURANTS AND FOOD SERVICE
    July 2021 - January 2024 (2 years and 6 months)
    Paris, France
    Tastyn is the food corner that allows companies, school campuses, and coworking spaces of all sizes to access fresh products from local caterers simply and easily! 🥗

    Contribution:
    App developed in bubble.io - exit January 2024

    On the technical side, I worked on:
    👉 the creation of our back office
    - delivery planning tool (custom calendar and automated synchronization with our suppliers)
    - product management (product creation/modification/deletion)
    - customer CRM (sending push notifications or SMS via TWILIO, creating promo codes, expense tracking, automation for various customer scenarios...)
    - metrics dashboard (real-time sales tracking, KPIs, reporting...)
    - custom customer support integrated with our connected corner (remote door opening via WebSocket API, instant customer refunds, sending email or SMS templates...)
    - Alerts and notifications in case of food corner/customer issues by integrating Slack

    👉 creation of the Tastyn mobile app in low code
    - account creation with geolocation
    - addition of payment methods (credit card and meal vouchers) via Stripe and Paygreen
    - real-time visual of products in stock in our corner (via API integration)
    - interaction with our IOT corner (door opening via QR code scan)
    - transaction tracking and sending of PDF invoices
    - Multi-language (French - English)

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Education

  • Master in Management
    Kedge Business School
    2021

Skill set

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