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Jean RossetJR

Jean Rosset

Senior Growth Engineer & CRO Specialist | AI-Power

600 €/jour
Paris, FR
3-7 ans

Délai de réponse moyen : 1h

À propos de Jean

Senior CRO Manager with 7+ years driving growth optimization for global enterprises. Expert in scalable experimentation frameworks, blending advanced analytics, automation, and AI integration to deliver measurable performance gains.

Product builder and innovation catalyst, I enable companies to scale their growth engine and accelerate testing cycles through cutting-edge methodologies.
  • Français

    Bilingue ou natif

  • Anglais

    Capacité professionnelle complète

En télétravail uniquement
Travaille majoritairement à distance

Expériences

  • Vibe Coding Studio
    Side Projects & Innovation Lab
    janvier 2024 - Aujourd'hui (2 ans et 5 mois)
    Lisbonne, Portugal
    • AI-assisted development pioneer: evolved from simple copy-paste with Claude to advanced Cursor AI usage (MCP, strict rules, daily coding) to accelerate development productivity
    • Built EasyABTesting, lightweight experimentation toolkit (duration calculators, prioritization matrix, AI agent for hypothesis generation and analysis) → technical foundation for ExperimentIO
    • Developed ExperimentIO, comprehensive SaaS experimentation management platform:
    - Kanban interface with dynamic segmentation (status/country/pages) and real-time roadmap
    - Centralized test library with automated analyses and complete history
    - Advanced statistical engine (Bayesian & Frequentist) with duration calculations and automated reporting
    - Integrated AI chatbot (Claude/GPT) connected to test database → contextual insights generation and recommendations

    • Designed StrutIO, B2B SaaS marketplace platform (models, agencies, brands) with full-stack architecture (REST API + responsive React/Tailwind interface)
    • Launched HomeIO, personal dashboard application with financial widgets, budget management, and advanced revenue/expense flow visualization
    • Modern tech stack: React, Tailwind CSS, Node.js, Python, SQL with native AI integrations for automation and predictive analysis
    • DevOps & deployment: Automated CI/CD on Netlify/Render, rigorous Git versioning, comprehensive technical documentation, open-source code on GitHub
    Développement FullStack Cursor Bolt.new Supabase LLMs
  • Emma - the Sleep Company
    Senior CRO Manager
    E-COMMERCE
    septembre 2023 - Aujourd'hui (2 ans et 9 mois)
    Lisbon, Portugal
    • Global management of CRO team across 35+ markets (Europe, APAC, Americas), driving roadmap, resources, and strategic direction
    • Designed and deployed structured experimentation program (RICE framework, UX workshops, server-side A/B tests) with automated prioritization workflows
    • Led 200+ experiments+8% global conversion uplift and doubled testing velocity through streamlined processes and automated analysis
    • Applied Bayesian & Frequentist statistical models with automated Python/SQL pipelines → 75% reduction in analysis time via AI-assisted reporting
    • Integration of ExperimentIO, full-stack platform to manage, monitor & analyze experiments at scale, featuring automated insights generation
    • Managed and coached CRO team (mid, junior, data/analytics levels) while partnering closely with Product, Design & Development teams
    Global Team Leadership Conversion Rate Optimization Statistical Modeling & Analysis Experimentation at Scale AI-Assisted Analytics
  • Mercedes-Benz.io
    Senior Experimental Analyst
    AUTOMOBILE
    mai 2022 - septembre 2023 (1 an et 4 mois)
    Lisbon, Portugal
    • Launched first global CRO program for Mercedes-Benz websites across Europe
    • Audited user journeys & site performance, defined continuous improvement framework with data-driven prioritization
    • Executed 17 A/B tests (14 statistically significant) → +35% leads, +9% transactions, +3% net revenue
    • Applied Bayesian & Frequentist analysis, automated test planning & reporting with Jira/Looker integration
    • Trained Data Analysts on advanced CRO methodology combining data insights, UX research, and competitive benchmarking
    CRO Program Development User Journey Analysis Statistical Testing & Analysis Data-Driven Strategy Team Training & Development

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Formations

  • Master II - Marketing Digital
    ESDES
    2019
    Développement web (HTML, CSS, JavaScript) Analytics & Statistiques avancées Marketing Data & Stratégies Growth Semestre international en Finlande (JAMK University) 2 ans en apprentissage chez Société Générale

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