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Guillaume DupuisGD

Guillaume Dupuis

Project | Product | Digital Transformation

€490/day
Paris, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Guillaume

Since 2013, I have been designing, structuring, and evolving digital products with a strong business impact, at the intersection of Product, Technology, and business challenges.

As an entrepreneur and co-founder of MG Mobile, I support startups, SMEs, mid-cap companies, and large corporations in the scoping, launch, delivery, and adoption of digital solutions: mobile applications, SaaS platforms, business tools, CRMs, digital journeys, and AI-augmented products.

My playground: transforming complex business needs into useful, high-performing products adopted by users.

I am particularly involved in:

• Product scoping (discovery, prioritization, roadmap)
• Structuring and managing digital products (web, mobile, SaaS, AI)
• Coordination between Product, Tech, Design, Marketing, and business teams
• Optimizing user journeys and product adoption
• Digital transformation, automation, and operational performance issues
• Complex environments involving multiple stakeholders

Throughout my career, I have contributed to the creation and evolution of several digital products:
→ B2B/B2C mobile applications
→ Sales performance-oriented CRMs
→ Acquisition and engagement SaaS platforms
→ AI products and business copilots
→ Digital tools in the fintech, retail, mobility, and service sectors

I particularly thrive in contexts where it's necessary to structure, prioritize, align teams, and transform a vision into concrete execution.

Interested in opportunities related to Product Management, Lead Product, Product Transformation, Digital Product, Mobile & AI Product.
  • French

    Native or bilingual

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

Experience

  • jeuconcours.app
    Product and Growth Manager
    SOFTWARE PUBLISHING
    March 2025 - Today (1 year and 5 months)
    Publisher of a gamification SaaS platform enabling brands, retailers, networks, and agencies to create digital acquisition and engagement tools (contests, instant wins, quizzes, calendars, event campaigns).

    Product, business model, and adoption strategy management to optimize user engagement and business performance.

    Key Contributions:

    • Definition of product vision and roadmap
    • Building market positioning and go-to-market strategy
    • Optimizing user journeys and engagement mechanics
    • Structuring user acquisition and activation models
    • Analyzing customer feedback and continuous product improvement
    • Coordination between business, product, and technical delivery needs

    Focus on creating a scalable SaaS product oriented towards adoption, engagement, and value generation.
    Product Marketing Go-to-Market (GTM) Strategy Software as a Service (SaaS) Customer Acquisition Growth Marketing
  • Flowper CRM
    Product Manager
    SOFTWARE PUBLISHING
    January 2024 - Today (2 years and 7 months)
    Managing the design and evolution of a CRM dedicated to sales performance, lead tracking, and sales process optimization.

    Positioned at the intersection of product, business, and sales operations to improve user workflows and sales team performance.

    Key Contributions:

    • Identifying and prioritizing user and business needs
    • Functional design and structuring of the CRM's business logic
    • Optimizing sales journeys and workflows
    • Defining product roadmaps and prioritizing evolutions
    • Coordinating with technical teams for product delivery
    • Continuous improvement through user feedback and business needs

    Objective: to build a business tool that enhances sales productivity, customer relationship management, and operational efficiency.
    Product Management Customer Relationship Management (CRM) Sales Operations Business Process Optimization B2B SaaS
  • Mariez-vous!
    Web and Mobile Application Mariez-vous!
    E-COMMERCE
    January 2019 - Today (7 years and 7 months)
    Paris, France
    As the conductor of a large-scale digital project, I led the design, development, and ongoing maintenance of a comprehensive platform including:
    • An attractive and high-performing showcase website, reflecting the brand's identity and offering an optimal user experience.
    • A robust and scalable web back-office, enabling efficient management of content, users, and daily operations.
    • iOS and Android mobile applications downloaded by tens of thousands of users, positioning the brand as a major player in the wedding market.
    • A dedicated professional space for partners, facilitating collaboration and communication.
    At the heart of this ambitious project, I played a role in orchestrating development while respecting set objectives in terms of quality, cost, and deadlines.

    My mission consisted of:
    • Defining a clear and coherent digital strategy in collaboration with the client and stakeholders.
    • Developing precise and detailed specifications for each component of the platform.
    • Selecting the most suitable technologies for the project's needs.
    • Overseeing all development phases, ensuring code quality and client satisfaction.
    • Implementing evolutionary maintenance processes to ensure the platform's sustainability.

    Methodology:
    • Collaborative workspace
    • Weekly sync-ups
    • Detailed monitoring and reporting
    • Dedicated point of contact
    Stack:
    • Trello
    • Custom CRM
    • Google Workspace Suite (gmeet, drive...)
    • Google Search Console
    • Semrush
    • Apple Store Connect accounts
    • Google Play Developer account
    Technical Integrations:
    • Stripe integration for monetization management
    • Brevo (formerly Sendinblue) integrator for transactional emailing, SMS, and WhatsApp
    • Obvy integrator for online sales management
    Mobile Application Project Management User Experience Design Semantic Silo Roadmap

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Education

  • Master in Economic Engineering Specialized in Project Management, Innovation, Design
    Paris Est
    2008

Skill set

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