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Mehdi Jack Dzenite KetrebMJ

Mehdi Jack Dzenite Ketreb

UX/UI Designer | Web Apps & Conversion Funnels

€350/day
3 projects
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Mehdi Jack

🎨 I am Mehdi Jack, a UX/UI Designer based in Paris, Figma expert, bilingual French & English.

Express UX Audit — 1 day
Landing page / Funnel Redesign — 2 to 5 days
SaaS Interface / Dashboard — short or long-term mission

🎯 My strengths:

Active monitoring of UX/UI best practices

UX Audit

UX research and product trends (NN Group, AppFollow, etc.)

Insurance subscription funnel

Precise and organized interactive prototyping

Clean, aesthetic, clear, and minimalist UI

Efficient structuring of insights and handoff for developers

Basic Google Ads campaign management

High multicultural adaptability (English B2, Japanese B1)


📚 Sectors covered: Real Estate, Fintech, Banking, Insurance, HR


🚀 Recent projects:

UX/UI design and optimization of a mobile subscription funnel for an insurance sector player

SaaS invoicing & accounting tool for freelancers + dashboard + email campaign → User journey UX + responsive UI (complete Figma prototype, developed with Firebase Studio Backend).

Real estate SaaS CRM + landing page → Customer journey UX + responsive UI (complete Figma prototype, ready for development)

Google Ads campaign management + KPI tracking for conversion-oriented landing page

Fintech banking app (UK) → Optimized landing page, high-converting CTAs, conversion and micro-interactions

UX/UI at SternPay (UK fintech) → complete design system + handoff for developers


🔧 Tools: Figma, Slack, Notion, Miro, Jira, Trello


📞 Looking forward to connecting
  • French

    Native or bilingual

  • English

    Fluent

  • Japanese

    Conversational

Can work on-site
Paris (up to 50km), Lille (up to 20km), Lyon (up to 20km), Nantes (up to 20km)

Experience

  • Login Digital Africa
    Malt logoOn Malt
    UX/UI Optimization of a Borrower Insurance Subscription Funnel
    BANKING AND INSURANCE
    January 2026 - April 2026 (3 months)
    Paris, France
    UX/UI design and optimization of a mobile subscription funnel.

    – Audit, UX analysis, and identification of friction points
    – Conversion-oriented thinking and funnel simplification
    – Optimization of information hierarchy and user decision-making
    – Mobile UI design consistent with business objectives and action clarity

    Work carried out in close collaboration with product and technical teams, with a pragmatic approach focused on efficiency and impact.
    User Experience Design UX Research UI/UX Design Banking and Insurance Mobile Design
  • Malt logoOn Malt
    UX/UI Design / Landing Page + Google Ads A/B Testing
    July 2025 - August 2025
    Landing Pages, Conversion & Digital Marketing

    Creation and UX/UI optimization of conversion-oriented landing pages, with integration of reassurance elements (high-converting CTAs, micro-interactions, visual hierarchy).

    Implementation of structured A/B tests (design variants, wording, page structure) to validate best performance.

    Management of Google Ads campaigns associated with landing pages, consistent with user journeys and marketing objectives.

    Monitoring and analysis of key KPIs (CTR, conversion rate, cost per lead, ROI) to guide iterations and maximize results.
  • Nicolas Fournier Capifrance
    UX/UI Designer
    REAL ESTATE
    March 2025 - June 2025 (3 months)
    Paris, France
    Landing Page + Mini CRM SaaS Type
    – UX and marketing research, design of a landing page optimized for conversion (catchy headline, highlighting benefits, clear call-to-action) + demographic data collection redirected to CRM.

    – Ultra-lightweight SaaS CRM, including:
    Simplified dashboard to manage leads (contact list, status, notes, calendar, monthly/annual sales, AI message generation API: dynamic content generation (email subjects, follow-ups, welcome messages) to personalize each contact.

    Quick entry form connected to the landing page to automatically capture leads

    Consistent user flow between the landing page and the CRM space (smooth journey, graphical consistency)
    Figma User Interface Design CRM UI Designer SaaS

Reviews

5.0

Out of 2 ratings

N

Nicolas

Reviewed on 8/8/2025

Always professional, reliable, and punctual. After an e-commerce site and a landing page, Jack is now assisting us with the UI of our SaaS and A/B testing. A true trusted partner with great attention to detail.
S

Selenn

Selenn

Reviewed on 9/22/2024

Thank you to Mehdi Jack for his responsiveness and efficient collaboration. Both proactive and attentive to my needs, I highly recommend his work for anyone looking to move forward with their projects.

Recommendations

SM
NF
Selenn Mateus and 1 other person have recommended Mehdi Jack

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Education

  • Google UX Designer Professional Certificate
    Google
    2023
    UX design, Ui design, Figma, desgin thinking, ideation, benchmark, personas, maquettes, prototypes, tests utilisateurs, personas
  • Master in Digital Project Management
    Openclassrooms
    2022
    Méthodologie agile, recueil des besoins fonctionnels, diagramme de Gantt, budgétisation sur Excel, charte graphique et éditorial, campagne de newsletter, audit de site web, SEO, KPI, proposition commerciale, roadmap, userstories

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