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Margaux RuizMR

Margaux Ruiz

Product engineer web

€650/day
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Margaux

Senior Product Owner with 10 years of experience in B2C across various sectors (banking, health, e-commerce, automotive, beauty).
Combining technical expertise with a deep understanding of user needs, capable of managing product development with fluid communication, effective prioritization, and results-oriented leadership.

Strong knowledge of the Scrum framework (experience and PSPO certification).

I work fluently in both French and English.

👉 My areas of expertise:

*Product Management360°: From roadmap definition (MVP to industrialization) to translating business needs into developable User Stories.
  • **Headless CMS Expertise**: Structuring CMS (Storyblok, Strapi, Contentful...) to empower marketing teams while co-building a robust technical architecture with your developers.
  • **AI-driven Optimization**: Utilizing AI tools (ChatGPT, Claude, Gemini, V0) to accelerate the design phase: rapid prototyping, automated specification generation, and elimination of functional ambiguity before coding.
  • **Technical Knowledge**: I can challenge and converse with developers and designers.
  • **Business Performance (CRO/SEO)**: Designing conversion-oriented journeys and data-driven management.

👉 Why work with me?
  • Proven experience: Managed over 30 projects for SMEs and large corporations.
  • Technical mastery of Headless challenges and operational expertise in generative AI tools.
  • Guaranteed quality: Certified Opqast (web quality) and Scrum.org (PSPO I).
  • Bilingual: Professional French and English for your international contexts.

Trusted by: General Motors, Banque Populaire, Crédit Agricole, Maison M, France Numérisation...

Have a project? Feel free to contact me to discuss it.
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Paris (up to 50km), Narbonne (up to 50km), Lyon (up to 50km), Montpellier (up to 50km), Paris (up to 50km)

Experience

  • Maison M
    Product Owner
    FASHION AND COSMETICS
    July 2024 - September 2024 (3 months)
    Paris, France
    E-commerce Headless & TV Appearance "Qui veut être mon associé ?"

    - Context & Challenges: Preparing a cosmetic brand (DNVB) for its appearance on the show "Qui veut être mon associé ?". The challenge: A non-negotiable deadline (broadcast date) and a critical technical constraint: absorbing a massive traffic spike (+100k simultaneous visitors) while maximizing conversion through a personalized "skin diagnosis" journey.

    - My Role & Strategy: Product Owner responsible for delivery and technical strategy. I opted for a Headless architecture for performance and an AI-First approach to meet tight design deadlines.

    Key actions:

    - AI-Accelerated Design (V0 & Claude): Generation of 5 interface variants (diagnosis, purchase funnel) in 3 days using V0. 60% reduction in design time and faster validation of journeys with the founders compared to a classic cycle.

    - High-Performance Architecture: Selection and management of the Composable Commerce stack (Shopify Headless + Sanity + Next.js on Vercel) to ensure loading times under 1s and infinite scalability.

    - "Crash Test" Security: Organization of intensive load tests (simulating 100k users) and optimization of Core Web Vitals.

    - Conversion Optimization (CRO): A/B testing on the skin tone diagnosis module to achieve the target completion rate before launch day.

    Stack & Tools: Shopify Headless, Sanity CMS, Next.js, Vercel, V0 (AI), Claude, Google Analytics.
    Web Project Management Product Strategy Sanity Headless CMS Web Quality
  • Informatique Banque Populaire
    Product Owner
    BANKING AND INSURANCE
    September 2018 - March 2021 (2 years and 5 months)
    Toulouse, France
    Digitalization of Customer Journeys & Self-Care

    • Context & Challenges: A 2-year strategic mission within Informatique Banque Populaire. The objective: Accelerate digital transformation to reduce branch traffic and ensure service continuity (especially during the COVID-19 crisis) for 4 group entities: Banque Populaire, Caisse d'Epargne, Banque Palatine, and Dupuis de Parceval.
    • Challenge: Enable customers to independently manage all common procedures through a secure solution, while adhering to the strict constraints of the banking sector.
    • My Role & Achievements: As Product Owner, I led the design and deployment of over 40 digital forms within the connected spaces.
    • Roadmap Management: Prioritization based on business value and health urgency. Digitalization of complex processes: Loan Applications (Mortgage/Consumer), Account Openings, Card & Limit Management, Transfers, KYC Updates.
    • Cross-functional Coordination: Alignment of Business, Tech, and Design teams, and synchronization with Legal, Compliance, and Security departments.
    • Compliance & Quality: Strict integration of banking standards (ACPR, anti-money laundering), validation of data security, and adherence to digital accessibility (RGAA).
    • Agile Delivery: Sprint management (3 weeks), US writing, testing, and delivery validation according to a co-built quality charter.

    Results & Impact:

    ✅ 24/7 Customer Autonomy: Successful shift of physical flows to digital, critical during branch closures.

    ✅ Operational Efficiency: Automation of data entry and drastic reduction of administrative burden for advisors.

    ✅ Multi-Entity Deployment: Solution industrialized and successfully deployed across the 4 banks in scope.

    Environment: Agile Scrum, Banking Sector, JIRA, Confluence, Accessibility (RGAA).
    Product Owner Agile Methodology Project Management Banking and Insurance Digital Transformation
  • General Motors
    Product Owner
    AUTOMOBILE
    June 2014 - September 2017 (3 years and 3 months)
    Cité de Londres, United Kingdom
    Redesign of the European Customer Support Tool

    • Context and Challenges: For the Opel and Chevrolet brands, General Motors needed to modernize the management of owner inquiries (breakdowns, warranties) across Europe. The existing "legacy" tool, slow and inadequate, significantly hampered advisor efficiency and customer satisfaction.
    • The main challenge: Deploy a centralized yet flexible solution across 50 countries, each with its own legal specificities and local processes.
    • My Role: As Product Owner, I led an agile squad of 7 people (1 UI Designer, 5 Developers based in London) to deliver this critical tool.

    Key Actions & Methodology:
    • International Discovery & Alignment: Coordination with Country Managers of key markets to map specific processes. Backlog prioritization based on business value (main objective: reduction of call time).
    • Agile Delivery & Arbitration: Management of Scrum rituals. Continuous arbitration between the need for standardization (a European core model) and the necessity of critical local customizations.
    • User-centric Approach: Close collaboration with the UI Designer to redesign search paths (Search & Knowledge Base). Technical focus on performance to ensure instant display of customer data during calls.

    Results & Impact:

    ✅ Business Performance: Significant reduction in average call handling time (AHT) thanks to streamlined access to information.

    ✅ Successful Deployment: Adoption of the tool across Europe (50 countries) due to early consideration of local constraints.

    ✅ User Satisfaction: Notable improvement in employee (advisor) CSAT thanks to a modern UX.
    Product Owner Functional Specifications Agile Methodology Product Development UX

Recommendations

Philippe AntonaPA
Manuel CoffinMC
Philippe Antona and 1 other person have recommended Margaux

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Education

  • Master 2 Ancient History
    Université Toulouse Jean Jaurès
    2014

Certifications

  • Professional Scrum Product Owner (PSPO)
    Scrum.org
    Agile Methodology Product Owner Scrum
  • Mastery of Quality in Web Projects
    Opquast
    Web Project Management Web Quality

Skill set

Categories