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Mialy R.MR

Mialy R.

Dev Frontend React Web3 | UX Blockchain & DeFi 🚀

€280/day
Paris, FR
0-2 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Mialy

In Web3, the best tech isn't enough. If your users don't understand your dApp, they'll leave.

I buildReact interfacesthat transformblockchaincomplexity into a **smooth experience**.

After 10 years in finance (MBA Trading & Asset Management) and a development career change in 2024 as a Fullstack Dev, I dove into Web3 in late 2024.
In 2025, I joined **XRPL Commons' Aquarium Residency**: award-winning app (Jury Prize, 20 active users) and top 80/400 selection at the 1inch hackathon for a Web3 terminal.

My finance + frontend expertise is my strength.

đź”§What I bring
✦ React/Next.js Frontend for dApps
✦ Wallet & smart contract integration
✦ Simplified blockchain UX
✦ Frictionless onboarding
✦ DeFi/NFT/DAO design systems
✦ Performant mobile & desktop interfaces

🎨My approach
I understand the financial logic behind your protocols (tokenomics, staking) and translate that complexity into intuitive interfaces. A good protocol that loses 80% of users at wallet connect has an interface problem, not a tech problem.

🚀For whom
✦ Web3 pre-seed/seed startups
✦ DeFi/NFT/DAO projects improving their UX
✦ Protocols boosting their adoption

đź’»Stack
React • Next.js • Tailwind • Web3.js • XRPL • Wallets integration • Git

✨My difference
Structured product vision. In a world of generative AI, I build interfaces that truly convert.

đź“‚Projects
✦ Award-winning app during Demo Day v0
✦ Award-winning app with v1 iteration (20 users)
✦ Web3 Terminal (Top 80/400)

🌍 Bilingual FR/EN
⏱️ 2-3 month minimum engagements, renewable

Let's talk about your project! 🚀
  • English

    Native or bilingual

  • French

    Native or bilingual

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

Experience

  • XRPL Commons
    Product & Frontend Developer | Aquarium Residency
    TECH
    January 2025 - April 2025 (3 months)
    Paris, France
    Selected among participants of the Aquarium Residency, an intensive 3-month program dedicated to building innovative products on the XRP Ledger.

    I designed and developed a gamified web application for budget management aimed at students, enabling them to track daily expenses and improve their financial habits through simple and engaging interactions.

    🏆 Result: Jury Prize + 20 initial users

    Key Features
    - Clear UX tailored for students
    - Daily budget tracking system
    - Gamification based on rewards and progression
    - Collectible NFT-based reward system to encourage consistency

    Technical Stack
    - Frontend: React.js, Tailwind CSS
    - Web3: Xaman SDK (wallet authentication)
    - Business Logic: Connecting user actions → rewards and progression

    Impact & Validation
    âś“ Presented at Demo Day and won the 1st Jury Prize
    âś“ Tested with 20 initial users to validate UX, engagement, and product hypotheses
    âś“ Concept and user onboarding validation

    Key Learnings
    This experience reinforced my product vision, particularly in:
    - Designing clear and intuitive interfaces
    - Frictionless user onboarding
    - Transforming complex systems into simple, usable experiences
    - Understanding adoption challenges in Web3
    React.js Responsive design TailwindCSS Vercel User Experience Design
  • Ada Tech School
    Fullstack Developer
    TECH
    January 2024 - October 2024 (9 months)
    Paris, France
    Intensive training (9 months) in fullstack web development with a project-based and agile methodology approach. The program provided me with a comprehensive understanding of web development, from design to deployment.

    Skills Developed

    Frontend (my current focus):
    - Frontend architecture and integration (HTML, CSS, JavaScript, React)
    - Responsive and mobile-first interfaces
    - UI/UX design and prototyping with Figma
    - User flows, information hierarchy, and interface clarity

    Fullstack & Methodologies:
    - Backend development (Node.js, databases)
    - Git collaboration and agile practices
    - Product approach and technical decisions
    - Learning by doing and autonomy

    Projects Completed

    Development of several complete web applications involving:
    - Frontend/backend design and architecture
    - API integration and data management
    - Design of clear and intuitive user interfaces
    - Collaborative teamwork using agile methods

    Teaching Approach
    Training based on learning by doing, autonomy, and clear communication around product and technical choices.
    HTML5 / CSS3 / JavaScript React.js Figma Git Responsive design
  • Selexium
    Wealth Management Advisor
    BANKING AND INSURANCE
    April 2022 - May 2023 (1 year and 1 month)
    Paris, France
    Wealth management and investment advice for private clients. Estate analysis, active prospecting, and client follow-up via Salesforce.

    **Results**: €292,000 in revenue generated (real estate + financial products)


    Link to my current activity:This experience in traditional finance allowed me to develop adeep understanding of financial productsand **client relationships**, skills I now apply in designing clear and accessible DeFi interfaces.
    Financial Analysis Client Relationship Salesforce CRM

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Education

  • Fullstack Web Developer General
    Ada Tech School
    2024
    Fullstack Web Developer General
  • Master of Business
    ESLSCA
    2016
    Master of Business Administration (M.B.A.), Trading and Asset Management

Skill set (50)

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