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Sarah-Sophie T.ST

Sarah-Sophie T.

Product Designer expert AI & Webflow dev

€450/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Sarah-Sophie

Product Designer specialized in user experiences integrating generative AI, as well as in creating Webflow sites

🎨Product Design

- Discovery, User Research and data-driven strategy
- Design of complex workflows integrating AI (content generation, chatbots, recommendations, Human-in-the-loop)
- Prototyping: interface design, vibe-coding
- Design System and Handoff

💻 Webflow Websites

- Development, redesign or migration
- Journey optimization and Growth Design
- Custom code, tailor-made features and automations (Zapier, n8n, etc.)
- Creative design: advanced animations and interactions, 3D

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💡 My Approach :

➡️Specialized in Generative AI: I create intuitive experiences around generative AI through my understanding of technical and ethical issues. I make complexity accessible.

➡️Creative & Educational: Creativity allows us to overcome constraints and offer experiences that make a difference. My goal is to empower you to manage your product/website.

➡️Design & Code: Dual design/development skill (Front-End training) to lead projects without technical friction or creative barriers.

➡️Iterative & Data-driven: I design, I test, I optimize. I understand your ecosystem before creating solutions informed by user feedback and data.

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📈 Recent Results :

FAQQO(AI SaaS) : MVP deployed with branding in 2 weeks

Hymaïa(Data & AI Consulting) : Next-gen LMS presented at Vivatech

Outsight(Deeptech LiDAR) : Corporate Webflow site from scratch, team trained and autonomous

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🎯 Ideal For :

➡️Small teams or Startupsneeding expertise without internal hiring

➡️Innovative projectsintegrating generative AI

➡️Creatives**, freelancers with a need for **strong branding

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👉Portfolio & Contact: saso.design
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Paris (up to 10km)

Experience

  • FAQQO
    AI-generated FAQs Creator
    SOFTWARE PUBLISHING
    August 2025 - August 2025
    Paris, France
    👉 Challenge
    Create an AI-powered and developed FAQ generator

    👉 Product Design
    - Feature definition, stack, and user journey
    - Optimized management of technical constraints (tokens, formats)
    - Visual identity (logo + interface)

    👉 Full-Stack Development
    - AI-assisted development (V0 + Cursor)
    - Improvements to generated Front-End (React + TS + Tailwind)
    - Online deployment (Vercel)

    🔎 Specifics
    - Significant technical constraints (tokens + formats + generated response)
    - Very fast deployment (the mission lasted 2 weeks in total)
    AI Chatbot SAAS UI/UX Design Web Development Visual Identity
  • WikiBuddy
    Interactive AI Assistant for Wikipedia
    EDUCATION AND E-LEARNING
    July 2025 - July 2025
    Paris, France
    👉 Challenge
    Create an AI assistant that makes Wikipedia accessible and engaging through natural conversational interactions.

    👉 Product Design
    - Definition of the application's functional scope
    - Interface design and visual identity
    - Conversational design: AI agent personality, contextual adaptation, and memory management

    👉 AI Development
    - Stack: React + TypeScript (Lovable + Cursor)
    - Wikipedia + Claude API integration
    - Deployment and go-live

    🔎 Specifics
    - Technical challenges: managing long conversational context and parsing Wikipedia articles
    - UX balance between pedagogy, user engagement, and conversational fluidity.
    - MVP deployed in production in 2 weeks
    Claude Product design artificial intelligence User Experience Design User Interface Design
  • Hymaïa
    HymaLabs - Gamified Learning Platform for Vivatech 2025
    HUMAN RESOURCES
    June 2025 - June 2025
    Paris, France
    👉 Challenge:
    Design an innovative alternative to traditional LMS by integrating gamification features and long-term active learning.

    👉 Product Design
    - UX research focused on user engagement and gamification (badges, challenges, etc.)
    - Research and integration of social learning features: collective challenges, shared news, and team dynamics
    - Immersive desktop interface in a playful environment
    - Adaptive and personalized learning paths

    👉 KPI Dashboard for HR/Managers
    - Dashboard interface with engagement KPIs and training success by cohort
    - Advanced filter system: segmentation by teams, seniority, departments, and performance
    - Data export module for reporting and personalized HR assessments
    - Long-term analytics: group progress tracking and detailed engagement metrics

    🔎 Specifics
    - Very short delivery time (1 week)
    - Many stakeholders in project management
    - Absolute freedom in creativity
    User Interface Design User Experience Design Figma Learning Management System Interactive Prototype

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