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Geneviève MasioniGM

Geneviève Masioni

Supermalter

🛍️ Web Developer | Shopify & Klaviyo Expert

€680/day
47 projects
Paris, FR
3-7 years

Average response time: 2 hours

Freelancer profile translated to English.
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About Geneviève

🎯Build customer loyalty with a personalized customer experience
👩🏾‍💻 Web Developer | Shopify and Klaviyo Flows Expert
🚀 Shopify website and email sequence creation and optimization
⚡️ 6 years of experience
⭐️ 4.95/5 by +20 satisfied brands

Why me?
- A complete personalization strategy
- Code that converts and retains your customers
- I understand your business challenges
- Respect for deadlines

💎My flagship services
Audit(Email, CRO, or Quiz) for a smooth purchasing journey
Quiz funnel: 2x more first orders in 90 dayswith a quiz that converts your visitors without discounts.
Email sequence delivered in 7 days(without compromising quality) to maximize your email sales. Choose from 9 essential Klaviyo flows.

> Strategic e-commerce solutions
Klaviyo Flows
Product recommendation quiz
Product customization module
Product bundles or wishlists
Personalized customer space ('for you' page)

> Shopify e-commerce website creation
Shopify store creation from scratch
Custom Shopify theme creation
Custom Shopify app creation
Shopify site or theme redesign
Web integration from Figma mockups
PrestaShop to Shopify migration

> Shopify store optimization
Shopify technical audit
Shopify landing page development
Shopify app installation and configuration
CRO optimizations (improve UX and customer experience)
Shopify maintenance

> Emailing
Klaviyo Flows
Custom Klaviyo template
Klaviyo migration

My process:
- Discovery call (free)
- Quote within 48 hours
- Weekly validation points
- Technical support and assistance

💻My technologies:
- Javascript (vanilla, React.js, Node.js)
- Databases: MySQL, PostgreSQL, Firebase

(*)My daily rate variesdepending on the missions, clients, and working conditions.

Take a look at my portfolio 👇🏾
  • English

    Fluent

  • French

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • Atelier Charlotte Auzou
    Malt logoOn Malt
    Web Developer | Shopify Expert
    E-COMMERCE
    September 2024 - October 2024
    Paris, France
    Graphic optimization and SEO audit to **improve customer experience, enhance international SEO, and attract an English-speaking clientele**.

    📝 Needs
    ↳ Improve customer experience
    ↳ Improve international search engine optimization (SEO)
    ↳ Grow clientele by attracting an English-speaking audience

    ✅ Solutions / What I did:
    ↳ Improve shopping experience: a custom product page template
    ↳ Improve international SEO: a technical audit and an SEO audit
    ↳ Grow clientele: a personalized SEO strategy

    🍒 The cherry on top:
    → Proactive in offering relevant recommendations
    → Resourceful in finding creative solutions to Shopify limitations
    Shopify Shopify Expert E-commerce strategy SEO Audit Shopify Developer
  • Société biblique française
    Malt logoOn Malt
    Web Developer | Shopify Expert
    E-COMMERCE
    June 2024 - October 2024 (5 months)
    Paris, France
    Optimization of a custom Shopify app tosave time on online store administration by automatingdata synchronization.

    📝 Needs
    ↳ Save time on Shopify store administration
    ↳ Automate data synchronization with the logistics system
    ↳ Maintain control in case of issues

    ✅ Solutions / What I did:
    ↳ Save time: custom Shopify app
    ↳ Easy synchronization: automated data synchronization
    ↳ Maintain control: automatic notifications to the administrator

    🍒 The cherry on top:
    → Proactive and flexible to adapt to changing directions
    Shopify Expert Shopify Developer E-commerce React.js Web development
  • HELSSY HAIR
    Malt logoOn Malt
    Web Developer | Shopify Expert
    E-COMMERCE
    June 2024 - July 2024 (2 months)
    Paris, France
    Product page optimization to **improve customer experience and store SEO**.

    📝 Needs
    ↳ Improve customer experience
    ↳ Improve product page SEO

    ✅ Solutions / What I did:
    ↳ Improve customer experience: custom product page template
    ↳ Improve product page SEO: added complementary product information
    Shopify Shopify Expert Front-End Development Customer experience E-commerce store

Reviews

5.0

Out of 33 ratings

CharlotteC

Charlotte

Une collaboration qui dure - Atelier Charlotte Auzou

Reviewed on 4/17/2026

Efficient work and attentive to my needs. I will continue to collaborate with Geneviève in the future for my Shopify store. Thank you!
CharlotteC

Charlotte

Une collaboration qui dure - Atelier Charlotte Auzou

Reviewed on 2/13/2026

I have full confidence in Geneviève for my Shopify store projects. She has perfect knowledge of the tool and is proactive in improving the store's performance as much as possible. Our collaboration has been ongoing for several years and will continue. Thank you!

Recommendations

Michelson N.MN
FU
Michelson N. and 1 other person have recommended Geneviève

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Education

  • Computer Science Engineer
    ENSICAEN
    2022
    Formantion d'ingénieur en informatique spécialité intelligence artificielle. Programmation logicielle, web et mobile et apprentissage des méthodologies Agiles de gestion de projets informatiques.
  • DUT in Computer Science
    IUT Paris Descartes
    2018
    Formation généraliste en informatique : programmation, développement web et mobile, bases de données. Apports complémentaires : management de projet, expression et aisance orale.

Certifications

  • Build Websites From Scratch (Certification)
    Codecademy
    2017
    Showcase site Front-End Development Back-End Development JavaScript HTML5 CSS3
  • Klaviyo product certificate
    Klaviyo
    https://credential.klaviyo.com/6d01ce47-021c-4a18-ae1a-c5c63aee5e72#acc.O8YmqWjh
    Email Strategy Customer Segmentation and Analysis Email Marketing Klaviyo Personalization Email Marketing Klaviyo Flows Klaviyo Automations Klaviyo Migration Email Sequence

Skill set

Categories