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David MassonDM

David Masson

Product Manager | User-centric | Gamification

€500/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About David

Product Managerspecializing in retention, engagement, and gamification, with a background in video game design.

I help transform casual users into regular usersthrough engagement loops, a data-driven approach, and cross-functional execution (Product/Design/Tech/Marketing).

What I excel at:
  • Designing engagement and progression mechanics
  • Improving key KPIs: activation, retention, churn, ARPU
  • Prioritizing and delivering quickly: discovery, roadmap, specs, agile squad delivery, data-oriented iteration
Recent results:
  • Led a monetization pivot (subscription to free-to-play with ads), monitoring ARPU/retention/churn
  • Doubled average playtime and increased highly engaged users from 7% to 18%

Contact me to discuss your challenges!
  • French

    Native or bilingual

  • English

    Native or bilingual

Can work on-site
Paris (up to 50km), Rouen (up to 50km), Le Havre (up to 50km), Marseille (up to 50km), Lyon (up to 50km)

Experience

  • Kayfo Game Studio
    Senior Product Manager
    VIDEO GAMES AND ANIMATION
    November 2024 - Today (1 year and 7 months)
    Result: Average playtime doubled and increase in highly engaged players.
    • Led end-to-end delivery, sprint planning, and ensured smooth releases.
    • Organized regular playtests to observe player behavior and feature appeal, then adjusted priorities and scope.
    • Designed and monitored A/B tests to validate hypotheses.
    • Tracked success metrics to identify blockers and drive iterations.
    • Provided QA/acceptance support and tracked issues until resolution.
    • Coordinated with the CTO and aligned teams through documentation
    Product management Gaming Mobile Games Producing
  • BlaBlaCar
    Product Manager
    TRAVEL AND TOURISM
    June 2025 - July 2025 (1 month)
    Paris, France
    Result: Delivered 4 high-impact solutions to improve new driver success on BlaBlaCar as part of the Noé bootcamp.
    • Led product strategy: problem framing, prioritization, solution prototyping, specifications, and deployment approach.
    • Analyzed BlaBlaCar dataset and conducted user research (driver and passenger interviews).
    • Prioritized problems by impact on metrics vs. technical cost.
    • Prototyped user flows on Figma and iterated on 4 solutions.
    • Collaborated with my partner to align priorities, scope, and delivery.
    Product management User Research Data analysis Product Delivery Product Delivery
  • Fiero Studio
    Level Designer
    September 2024 - October 2024 (1 month)
    Result: Improved onboarding experience and better showcased the engine to users and prospects.
    • Complete redesign of the onboarding tutorial: analysis of the existing journey, identification of friction points, and design of a new progressive flow adapted to different user levels.
    • Creation of an interactive playable demo to showcase the engine's technical capabilities and serve as a reference for prospects.
    • Collaboration with product and technical teams for alignment and smooth implementation.

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Education

  • Product Manager
    Noé
    2025
  • Preparatory program in Game Design & Programming
    ISART
    2021

Skill set

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